2021 Chevrolet Colorado Drivetrain Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

The 2021 Chevrolet Colorado has 263 drivetrain parts with verified fitment on this page — 87 part types and 27 brands, covering all 3 engine options (2.5L L4, 2.8L L4 DIESEL Turbocharged and 3.6L V6). Each part includes a manufacturer part number and application notes.

On the 2021 Chevrolet Colorado, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Drive Shaft (16 parts), Transfer Case Fluid (14 parts) and Transfer Case Motor (10 parts). The other 84 part types cover the remaining 223 parts.

4WD Actuator

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84630666
🇺🇸 US 🇨🇦 CA
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WELLS Fits: all 2021 Colorado engines 1S15510
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the actuators that engage four-wheel drive at the transfer case or axle. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.

4WD Actuator Clutch Sleeve

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471875
🇺🇸 US 🇨🇦 CA
4WD4.10 Rear Axle Ratio (GT5)
Fitment notes — GM GENUINE 23471875
4WD4.10 Rear Axle Ratio (GT5)
Fits:
ZR2 Modelor 4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
ZR2 Modelor 4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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This table covers the 4WD Actuator Clutch sleeves.

4WD Actuator Fork

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471871
🇺🇸 US 🇨🇦 CA
4WD
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This table covers the forks a 4WD actuator moves.

4WD Actuator Housing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 2.8L L4 DIESEL Turbocharged 84242534
🇺🇸 US 🇨🇦 CA
4WD74.0" bed
Fitment notes — GM GENUINE 84242534
4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
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This table covers the 4WD Actuator housings.

4WD Disconnect

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84522876
🇺🇸 US 🇨🇦 CA
4WDExtended Cab Pickup
Fitment notes — GM GENUINE 84522876
4WDExtended Cab Pickup74.0" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
Fits:
ZR2 Modelor 4WD3.42 Rear Axle Ratio (GU6)
Fits:
ZR2 Modelor 4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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This table covers the disconnects that freewheel a front axle in two-wheel drive.

Axle / Differential Assembly

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23471889
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471889
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
Front4WDZ71 Model4.10 Rear Axle Ratio (GT5)
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84366616
🇺🇸 US 🇨🇦 CA
ZR2 ModelMating Connector Use 19366858 2-Way F with Leads
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23403917
🇺🇸 US 🇨🇦 CA
FrontZR2 Model
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84890234
🇺🇸 US 🇨🇦 CA
RearLT Model or WT Model or Z71 Model
Fitment notes — GM GENUINE 84890234
RearLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
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This table covers the Axle / Differential assemblies.

Axle Bumper

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23203561
🇺🇸 US 🇨🇦 CA
Rear
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This table covers the Axle bumpers.

Axle Housing

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.5L L4 84379386
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO 84379386
GM Original Equipment
Fits:
Rear128.3" Wheelbase6 speed Automatic trans.Except Positraction Limited-Slip Rear Axle (G80)4.10R (GT5)
or:
Rear128.3" Wheelbase6 speed Automatic trans.4.10R(GT5), Positraction Limited Slip Rear Axle (G80)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85019804
🇺🇸 US 🇨🇦 CA
RearLT Model or WT Model or Z71 Model
Fitment notes — GM GENUINE 85019804
RearLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
Fits:
RearLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
or:
Rear4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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This table covers the Axle housings.

Axle Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23273416
🇺🇸 US 🇨🇦 CA
Rear Right3.42 Rear Axle Ratio (GU6)
Fitment notes — GM GENUINE 23273416
Rear Right3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
Fits:
Rear RightCrew Cab Pickup74.0" bed140.5" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Rear RightLT Model or WT Model or Z71 Model128.3" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Rear Right4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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GM GENUINE Fits: all 2021 Colorado engines 85579602
🇺🇸 US 🇨🇦 CA
Front Inner4WD
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GM GENUINE Fits: 2.5L L4 23490377
🇺🇸 US 🇨🇦 CA
Fits Rear Right6 speed Automatic trans.
Fitment notes — GM GENUINE 23490377
Fits:
Rear Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
Rear Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.5L L4 23490378
🇺🇸 US 🇨🇦 CA
Fits Rear Left6 speed Automatic trans.
Fitment notes — GM GENUINE 23490378
Fits:
Rear Left6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
Rear Left6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84401851
🇺🇸 US 🇨🇦 CA
Rear LeftZR2 Model
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23273417
🇺🇸 US 🇨🇦 CA
Rear Left3.42 Rear Axle Ratio (GU6)
Fitment notes — GM GENUINE 23273417
Rear Left3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
Fits:
Rear LeftCrew Cab Pickup74.0" bed140.5" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Rear LeftLT Model or WT Model or Z71 Model128.3" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Rear Left4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84401850
🇺🇸 US 🇨🇦 CA
Rear RightZR2 Model
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This table covers the Axle shafts.

Axle Shaft Bearing

Brand Part Number Markets Notes Buy
ACDELCO Fits: all 2021 Colorado engines 23490337
🇺🇸 US 🇨🇦 CA
GM Original Equipment
Fitment notes — ACDELCO 23490337
GM Original Equipment
Rear
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DANA Fits: all 2021 Colorado engines 5660662
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 5660662
Spicer
with Dana M200 Rear Axle
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GM GENUINE Fits: all 2021 Colorado engines 84572373
🇺🇸 US 🇨🇦 CA
Front Right Inner4WD
Fitment notes — GM GENUINE 84572373
Front Right Inner4WDExtended Cab Pickup74.0" Bed128.3" WheelbaseRight Hand Output Shaft Bearing 2021037:14.10 Rear Axle Ratio (GT5)
Fits:
Front Right Inner4WDLT Model or WT Model or Z71 ModelRight Hand Output Shaft Bearing 2021037:13.42 Rear Axle Ratio (GU6)
or:
Front Right InnerCrew Cab PickupZR2 Model61.7" BedRight Hand Output Shaft Bearing 2021037:1
or:
Front Inner4WDCrew Cab PickupZ71 Model61.7" Bed128.3" WheelbaseRight Hand Output Shaft Bearing 2021037:14.10 Rear Axle Ratio (GT5)
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This table covers the Axle Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Axle Shaft Housing / Tube

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84926902
🇺🇸 US 🇨🇦 CA
4WD4.10 Rear Axle Ratio (GT5)
Fitment notes — GM GENUINE 84926902
4WD4.10 Rear Axle Ratio (GT5)
Fits:
ZR2 Modelor 4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
ZR2 Modelor 4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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This table covers the Axle Shaft Housing tubes.

Axle Shaft Lock / Snap Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471872
🇺🇸 US 🇨🇦 CA
Front Inner4WD
Fitment notes — GM GENUINE 23471872
Front Inner4WDSINGLE USEM-SHAPE4.10 Rear Axle Ratio (GT5)
Fits:
Front InnerZR2 ModelSINGLE USEM-SHAPE
or:
Front Inner4WDLT Model or WT Model or Z71 ModelSINGLE USEM-SHAPE3.42 Rear Axle Ratio (GU6)
or:
Front Inner4WDCrew Cab PickupZ71 Model61.7" bed128.3" WheelbaseSINGLE USEM-SHAPE4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: all 2021 Colorado engines 23474671
🇺🇸 US 🇨🇦 CA
Front Inner4WD
Fitment notes — GM GENUINE 23474671
Front Inner4WDSINGLE USEROUND CIR CLIP
Fits:
Front InnerZR2 ModelSINGLE USEROUND CIR CLIP
or:
Front Inner4WDLT Model or WT Model or Z71 ModelSINGLE USEROUND CIR CLIP
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This table covers the Axle Shaft Lock / Snap rings.

Axle Shaft Retainer / Clip

Brand Part Number Markets Notes Buy
DANA Fits: all 2021 Colorado engines 44281
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 44281
Spicer
Rear Axlewith Dana M220 Rear Axle
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490368
🇺🇸 US 🇨🇦 CA
Fits Rear AxleZR2 Model
Fitment notes — GM GENUINE 23490368
Fits:
Rear AxleZR2 Model
or:
Rear Axle4WDCrew Cab Pickup74.0" Bed140.5" Wheelbase3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
or:
Rear AxleLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
or:
Rear AxleCrew Cab PickupLT Model or WT Model or Z71 Model61.7" bed128.3" Wheelbase3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
Rear AxleCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
Rear AxleLT Model or WT Model or Z71 ModelExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
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This table covers the Axle Shaft retainers and clips.

Axle Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 291345
🇺🇸 US 🇨🇦 CA
Rear6 speed Automatic trans.
Fitment notes — GM GENUINE 291345
Rear6 speed Automatic trans.SINGLE USE4.10 Rear Axle Ratio (GT5)
Fits:
RearZR2 Model
or:
RearSINGLE USE3.42 Rear Axle Ratio (GU6)
or:
RearCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.SINGLE USE4.10 Rear Axle Ratio (GT5)
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TIMKEN Fits: all 2021 Colorado engines SL260314
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear
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TIMKEN Fits: all 2021 Colorado engines SL260498
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front4WD
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This table covers the seals where an axle shaft exits the housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

CV Axle

Specialty - For Lifted Vehicles

Brand Part Number Markets Notes Buy
GSP Fits: all 2021 Colorado engines NCV10183XDP
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Extended Travel CV Axle
Fitment notes — GSP NCV10183XDP
Extended Travel CV Axle
Frontwith Standard or Lifted up To 4 In Suspension
FrontLT Model or WT Model or Z71 Modelwith Standard or Lifted up To 4 In Suspension
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TOP NOTCH Fits: all 2021 Colorado engines TN20196XDP
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Extended Travel
Fitment notes — TOP NOTCH TN20196XDP
Extended Travel
Frontwith Standard or Lifted up To 4 In Suspension
FrontLT Model or WT Model or Z71 Modelwith Standard or Lifted up To 4 In Suspension
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Standard Replacement

Brand Part Number Markets Notes Buy
APWI Popular Fits: all 2021 Colorado engines GM8503
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front4WD
Fitment notes — APWI GM8503
Front4WDExtended Travel-Heavy Duty Design
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GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85597875
🇺🇸 US 🇨🇦 CA
FrontZR2 Model
Fitment notes — GM GENUINE 85597875
FrontZR2 Modelwith RPO Code ACD6 AB93 ADGK
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TRAKMOTIVE Popular Fits: all 2021 Colorado engines GM8423
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Frontwithout Driver Select Full Locking Differential
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GM GENUINE Fits: all 2021 Colorado engines 85597874
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 85597874
Front4WDwith RPO Code ACD5, Abhh, Acjx, Adgj
Front4WDLT Model or WT Model or Z71 Modelwith RPO Code ACD5, Abhh, Acjx, Adgj
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GSP Fits: all 2021 Colorado engines NCV10183
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Frontwith Standard Suspension
Fitment notes — GSP NCV10183
Frontwith Standard Suspension
FrontLT Model or WT Model or Z71 Modelwith Standard Suspension
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GSP Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 NCV10317
🇺🇸 US 🇨🇦 CA
FrontZR2 Model
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TRAKMOTIVE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 GM86018
🇺🇸 US 🇨🇦 CA
FrontZR2 Model
Fitment notes — TRAKMOTIVE GM86018
FrontZR2 Modelwith Driver Select Full Locking Differential (OPT G93)
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This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes.

CV Joint

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84243450
🇺🇸 US 🇨🇦 CA
Front InnerZR2 Model
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84243451
🇺🇸 US 🇨🇦 CA
Front OuterZR2 Model
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This table covers the constant-velocity joints at each end of a drive axle.

CV Joint Boot

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84849629
🇺🇸 US 🇨🇦 CA
Fits Front4WD
Fitment notes — GM GENUINE 84849629
Fits:
Front4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.or Front4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
Front4WD128.3" Wheelbase6 speed Automatic trans.or Front4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.
Fits:
Front8 speed Automatic trans.128.3" Wheelbase
or:
FrontCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85634208
🇺🇸 US 🇨🇦 CA
Front InnerZR2 Model
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85634209
🇺🇸 US 🇨🇦 CA
Front OuterZR2 Model
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This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.

CV Joint Boot Band

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84243440
🇺🇸 US 🇨🇦 CA
Front Inboard InnerZR2 Model
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GM GENUINE Fits: all 2021 Colorado engines 23474665
🇺🇸 US 🇨🇦 CA
Clamping Type: Gear
Fitment notes — GM GENUINE 23474665
Clamping Type: Gear
Front Outboard Inner4WD
Front Outboard Inner4WDLT Model or WT Model or Z71 Model
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GM GENUINE Fits: all 2021 Colorado engines 23474666
🇺🇸 US 🇨🇦 CA
Front Outboard Outer4WD
Fitment notes — GM GENUINE 23474666
Front Outboard Outer4WD
Front Outboard Outer4WDLT Model or WT Model or Z71 Model
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GM GENUINE Fits: all 2021 Colorado engines 23474667
🇺🇸 US 🇨🇦 CA
Front Inboard Inner4WD
Fitment notes — GM GENUINE 23474667
Front Inboard Inner4WD
Front Inboard Inner4WDLT Model or WT Model or Z71 Model
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GM GENUINE Fits: all 2021 Colorado engines 23474668
🇺🇸 US 🇨🇦 CA
Clamping Type: Gear
Fitment notes — GM GENUINE 23474668
Clamping Type: Gear
Front Inboard Outer4WD
Front Inboard Outer4WDLT Model or WT Model or Z71 Model
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GM GENUINE Fits: 2.5L L4 84803132
🇺🇸 US 🇨🇦 CA
Clamping Type: Spring Tension
Fitment notes — GM GENUINE 84803132
Clamping Type: Spring Tension
Front Inboard Outer4WD
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84243441
🇺🇸 US 🇨🇦 CA
Front Inboard OuterZR2 Model
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This table covers the bands that clamp a CV boot to the joint.

CV Joint Lock Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23490371
🇺🇸 US 🇨🇦 CA
Rear InnerTONE WHEEL 2018188:1
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23474671
🇺🇸 US 🇨🇦 CA
Front InnerZR2 Model
Fitment notes — GM GENUINE 23474671
Front InnerZR2 ModelSINGLE USEROUND CIR CLIP
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This table covers the CV Joint Lock rings.

Differential Carrier

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 84640877
🇺🇸 US 🇨🇦 CA
6 Speed Transmission128.3" Wheelbase
Fitment notes — GM GENUINE 84640877
6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: all 2021 Colorado engines 85549947
🇺🇸 US 🇨🇦 CA
Differential Gear Ratio: 3.42
Fitment notes — GM GENUINE 85549947
Differential Gear Ratio: 3.42
Front4WD4.10 Rear Axle Ratio (GT5)
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
Front4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 2.5L L4 22954507
🇺🇸 US 🇨🇦 CA
6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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GM GENUINE Fits: 2.5L L4 23471898
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471898
Front4WD4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85549948
🇺🇸 US 🇨🇦 CA
Cover Bolt Quantity: 12
Fitment notes — GM GENUINE 85549948
Cover Bolt Quantity: 12
FrontZR2 Model
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23471888
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471888
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
Front4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 3.6L V6 84640878
🇺🇸 US 🇨🇦 CA
Exc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
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This table covers the carriers that hold the differential gears in the axle.

Differential Carrier Bearing / Race

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines S1410
🇺🇸 US 🇨🇦 CA
Fits Front Right128.3" Wheelbase
Fitment notes — GM GENUINE S1410
Fits:
Front Right128.3" WheelbaseRight Hand Differential Bearing Assembly 10001043
or:
Front RightCrew Cab Pickup74.0" Bed140.5" WheelbaseRight Hand Differential Bearing Assembly 10001043
Fits:
6 speed Automatic trans.Differential Bearing Assembly M2004.10 Rear Axle Ratio (GT5)
or:
Front Right128.3" WheelbaseRight Hand Differential Bearing Assembly 10001043
or:
6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)Differential Bearing Assembly M2004.10 Rear Axle Ratio (GT5)
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DANA Fits: all 2021 Colorado engines 10001186
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10001186
Spicer
with Dana M200 Rear Axle
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DANA Fits: all 2021 Colorado engines 10043917
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10043917
Spicer
Rearwith Dana M200 Rear Axle
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GM GENUINE Fits: all 2021 Colorado engines S1409
🇺🇸 US 🇨🇦 CA
Front Left4WD
Fitment notes — GM GENUINE S1409
Front Left4WDLeft Hand Differential Bearing Assembly 100010424.10 Rear Axle Ratio (GT5)
Fits:
Front Left4WDLeft Hand Differential Bearing Assembly 100010423.42 Rear Axle Ratio (GU6)
or:
Front LeftZR2 ModelLeft Hand Differential Bearing Assembly 10001042
or:
Front Left4WDCrew Cab PickupZ71 Model61.7" Bed128.3" WheelbaseLeft Hand Differential Bearing Assembly 100010424.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 S1404
🇺🇸 US 🇨🇦 CA
Fits ZR2 Modelor LT Model or WT Model or Z71 ModelDIFF BEARING ASSY M220 10001242
Fitment notes — GM GENUINE S1404
Fits:
ZR2 Modelor LT Model or WT Model or Z71 ModelDIFF BEARING ASSY M220 100012423.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
Fits:
ZR2 Modelor LT Model or WT Model or Z71 ModelDIFF BEARING ASSY M220 100012423.42 Rear Axle Ratio (GU6)
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This table covers the bearings and races that support the differential carrier.

Differential Carrier Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 11589358
🇺🇸 US 🇨🇦 CA
4WDM14X2.0X90
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This table covers the Differential Carrier bolts.

Differential Carrier Bushing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84370076
🇺🇸 US 🇨🇦 CA
Front
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This table covers the Differential Carrier bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Differential Carrier Shim

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines 23471910
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — GM GENUINE 23471910
Fits:
Front Right4WD4.10 Rear Axle Ratio (GT5)2.62-2.57mm
or:
Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)2.62-2.57mm
or:
Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)2.62-2.57mm
Front Right2.62-2.57mm
Fits:
Front Right4WD3.42 Rear Axle Ratio (GU6)2.62-2.57mm
or:
Front Right4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)2.62-2.57mm
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GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490397
🇺🇸 US 🇨🇦 CA
Fits ZR2 Model2.55:2.50MM
Fitment notes — GM GENUINE 23490397
Fits:
ZR2 Model2.55:2.50MM
or:
3.42 Rear Axle Ratio (GU6)2.55:2.50MM
or:
LT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)2.55:2.50MM
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GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490393
🇺🇸 US 🇨🇦 CA
Fits ZR2 Model3.05:2.95MM
Fitment notes — GM GENUINE 23490393
Fits:
ZR2 Model3.05:2.95MM
or:
3.42 Rear Axle Ratio (GU6)3.05:2.95MM
or:
LT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)3.05:2.95MM
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GM GENUINE Fits: all 2021 Colorado engines 23471911
🇺🇸 US 🇨🇦 CA
Front Right4WD
Fitment notes — GM GENUINE 23471911
Front Right4WD4.10 Rear Axle Ratio (GT5)2.503-2.555mm
Fits:
Front Right4WD3.42 Rear Axle Ratio (GU6)2.503-2.555mm
or:
Front RightLT Model or WT Model or Z71 Model2.503-2.555mm
or:
Front Right4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)2.503-2.555mm
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GM GENUINE Fits: all 2021 Colorado engines 23471912
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — GM GENUINE 23471912
Fits:
Front Right4WD4.10 Rear Axle Ratio (GT5)2.438-2.49mm
or:
Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)2.438-2.49mm
or:
Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)2.438-2.49mm
Fits:
Front Right4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)2.438-2.49mm
or:
Front RightCrew Cab Pickup74.0" Bed140.5" Wheelbase2.438-2.49mm
Front Right4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)2.438-2.49mm
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GM GENUINE Fits: all 2021 Colorado engines 23471913
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — GM GENUINE 23471913
Fits:
Front Right4WD4.10 Rear Axle Ratio (GT5)2.373-2.425mm
or:
Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)2.373-2.425mm
or:
Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)2.373-2.425mm
Front Right2.373-2.425mm
Fits:
Front Right4WD3.42 Rear Axle Ratio (GU6)2.373-2.425mm
or:
Front Right4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)2.373-2.425mm
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GM GENUINE Fits: all 2021 Colorado engines 23471914
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — GM GENUINE 23471914
Fits:
Front Right4WD4.10 Rear Axle Ratio (GT5)2.308-2.36mm
or:
Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)2.308-2.36mm
or:
Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)2.308-2.36mm
Front Right2.308-2.36mm
Fits:
Front Right4WD3.42 Rear Axle Ratio (GU6)2.308-2.36mm
or:
Front Right4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)2.308-2.36mm
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GM GENUINE Fits: all 2021 Colorado engines 23471915
🇺🇸 US 🇨🇦 CA
Fits Front Right4WD
Fitment notes — GM GENUINE 23471915
Fits:
Front Right4WD4.10 Rear Axle Ratio (GT5)2.243-2.295mm
or:
Right6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)2.243-2.295mm
or:
Right6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)2.243-2.295mm
Front Right2.243-2.295mm
Fits:
Front Right4WD3.42 Rear Axle Ratio (GU6)2.243-2.295mm
or:
Front Right4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)2.243-2.295mm
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490390
🇺🇸 US 🇨🇦 CA
Fits ZR2 Model3.42:3.32MM
Fitment notes — GM GENUINE 23490390
Fits:
ZR2 Model3.42:3.32MM
or:
LT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)3.42:3.32MM
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This table covers the Differential Carrier shims.

Differential Cover

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471892
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471892
Front4WD4.10 Rear Axle Ratio (GT5)
Fits:
FrontZR2 Model
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
or:
Front4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.5L L4 23490349
🇺🇸 US 🇨🇦 CA
Fits Rear6 speed transmission
Fitment notes — GM GENUINE 23490349
Fits:
Rear6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
Rear6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490350
🇺🇸 US 🇨🇦 CA
Fits RearZR2 Model
Fitment notes — GM GENUINE 23490350
Fits:
RearZR2 Model
or:
Rear3.42 Rear Axle Ratio (GU6)
or:
RearCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
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This table covers the Differential covers.

Differential Cover Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 11603161
🇺🇸 US 🇨🇦 CA
RearSingle Use
Fitment notes — GM GENUINE 11603161
RearSingle UseOnly For Vehicles with Axle Vent Attached To Fuel Fill PipeM8X1.25X20/19,13
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This table covers the Differential Cover bolts.

Differential Cover Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 RDS55503
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Axle Housing Cover
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GM GENUINE Fits: 2.5L L4 23490353
🇺🇸 US 🇨🇦 CA
Fits Rear6 Speed Transmission
Fitment notes — GM GENUINE 23490353
Fits:
Rear6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)Axle Housing Cover
or:
Rear6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)Axle Housing Cover
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GM GENUINE Fits: all 2021 Colorado engines 23471893
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471893
Front4WD4.10 Rear Axle Ratio (GT5)
Fits:
FrontZR2 Model
or:
Front3.42 Rear Axle Ratio (GU6)
or:
Front4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490354
🇺🇸 US 🇨🇦 CA
RearAxle Housing Cover
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This table covers the gaskets that seal the Differential Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Differential Cross Pin

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471870
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471870
Front4WD4.10 Rear Axle Ratio (GT5)
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
Fits:
Front4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
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GM GENUINE Fits: 2.5L L4 23490375
🇺🇸 US 🇨🇦 CA
6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 23490375
6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 3.6L V6 23490376
🇺🇸 US 🇨🇦 CA
Exc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
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This table covers the Differential Cross pins.

Differential Crush Sleeve

Brand Part Number Markets Notes Buy
USA STANDARD GEAR Fits: all 2021 Colorado engines USA11138
🇺🇸 US 🇨🇦 CA
Rearwith Dana M220 Rear Differential
Fitment notes — USA STANDARD GEAR USA11138
Rearwith Dana M220 Rear Differentialwith Differential
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This table covers the Differential Crush sleeves.

Differential Fill / Drain Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471884
🇺🇸 US 🇨🇦 CA
Fits Front Differential4WD
Fitment notes — GM GENUINE 23471884
Fits:
Front Differential4WD4.10 Rear Axle Ratio (GT5)
or:
Rear6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
Rear6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
Fits:
Front DifferentialZR2 Model
or:
Front Differential4WDCrew Cab Pickup74.0" Bed140.5" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Front Differential4WDLT Model or WT Model or Z71 Model61.7" Bed128.3" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Front Differential4WDWT Model74.0" Bed128.3" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Front Differential4WDLT Model or WT Model or Z71 Model128.3" Wheelbase3.42 Rear Axle Ratio (GU6)
or:
Front Differential4WDZ71 Model4.10 Rear Axle Ratio (GT5)
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This table covers the Differential Fill drain plugs.

Differential Mount Bracket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490340
🇺🇸 US 🇨🇦 CA
BRAKE PIPE CLIP
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This table covers the brackets that mount the Differential Mount. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners.

Differential Pinion Bearing / Race

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines S1411
🇺🇸 US 🇨🇦 CA
Front Inner4WD
Fitment notes — GM GENUINE S1411
Front Inner4WDPinion Tail Bearing Assembly M220 100012444.10 Rear Axle Ratio (GT5)
Fits:
Front Inner4WDPinion Tail Bearing Assembly M220 100012443.42 Rear Axle Ratio (GU6)
or:
Front InnerZR2 ModelPinion Tail Bearing Assembly M220 10001244
or:
OuterLT Model or WT Model or Z71 ModelPinion Tail Bearing Assembly M220 100012443.42 Rear Axle Ratio (GU6)
Fits:
Front Inner4WDLT Model or WT Model or Z71 ModelPinion Tail Bearing Assembly M220 100012443.42 Rear Axle Ratio (GU6)
or:
Outer4WDCrew Cab PickupZ71 Model8 Speed Transmission61.7" Bed128.3" WheelbasePinion Tail Bearing Assembly M220 100012444.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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DANA Fits: all 2021 Colorado engines 10001045
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10001045
Spicer
with Dana M200 Rear Axle
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DANA Fits: all 2021 Colorado engines 10001187
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10001187
Spicer
with Dana M200 Rear Axle
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GM GENUINE Fits: all 2021 Colorado engines 85617857
🇺🇸 US 🇨🇦 CA
Bearing Type: Tapered Roller
Fitment notes — GM GENUINE 85617857
Bearing Type: Tapered Roller
Fits:
Front Outer128.3" Wheelbase
or:
Front OuterCrew Cab Pickup74.0" bed140.5" Wheelbase
or:
Outer4.10 Rear Axle Ratio (GT5)
or:
Outer6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.5L L4 S1405
🇺🇸 US 🇨🇦 CA
Fits Inner6 speed Automatic trans.
Fitment notes — GM GENUINE S1405
Fits:
Inner6 speed Automatic trans.Pinion Head Bearing Assembly M200 100011874.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
Inner6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.Pinion Head Bearing Assembly M200 10001187Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 S1406
🇺🇸 US 🇨🇦 CA
Fits InnerZR2 Model
Fitment notes — GM GENUINE S1406
Fits:
InnerZR2 Model
or:
InnerPinion Head Bearing Assy M220 100012433.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
or:
InnerPinion Head Bearing Assy M220 100012433.42 Rear Axle Ratio (GU6)
or:
InnerCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.PINION HEAD BRG ASSY M220 100012434.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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This table covers the bearings and races on the differential pinion.

Differential Pinion Bearing Baffle

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 23490398
🇺🇸 US 🇨🇦 CA
Fits 6 speed Automatic trans.SINGLE USE
Fitment notes — GM GENUINE 23490398
Fits:
6 speed Automatic trans.SINGLE USE4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.SINGLE USEExc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: all 2021 Colorado engines 23471955
🇺🇸 US 🇨🇦 CA
Front
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490399
🇺🇸 US 🇨🇦 CA
Fits ZR2 Modelor WT Model74.0" Bed
Fitment notes — GM GENUINE 23490399
Fits:
ZR2 Modelor WT Model74.0" Bed128.3" Wheelbase3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
or:
LT Model or WT Model or Z71 ModelSINGLE USE3.42 Rear Axle Ratio (GU6)
or:
LT Model or WT Model or Z71 Model61.7" bed128.3" WheelbaseSINGLE USE3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
Fits:
ZR2 Modelor LT Model or WT Model or Z71 ModelSINGLE USE3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
LT Model or WT Model or Z71 ModelSINGLE USEExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.SINGLE USE4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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This table covers the baffles that control oil at the pinion bearings.

Differential Pinion Nut

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 23493140
🇺🇸 US 🇨🇦 CA
6 speed Automatic trans.Single Use
Fitment notes — GM GENUINE 23493140
6 speed Automatic trans.Single Use4.10 Rear Axle Ratio (GT5)Pinion Gear Nut
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23493141
🇺🇸 US 🇨🇦 CA
Single UsePinion Gear Nut
Fitment notes — GM GENUINE 23493141
Single UsePinion Gear Nut
Fits:
Single Use3.42 Rear Axle Ratio (GU6)Pinion Gear Nutor ZR2 ModelSingle UsePinion Gear Nut
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 11547790
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 11547790
Front4WD3.42 Rear Axle Ratio (GU6)
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This table covers the Differential Pinion nuts.

Differential Pinion Seal

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines 84053573
🇺🇸 US 🇨🇦 CA
Fits FrontZR2 Model
Fitment notes — GM GENUINE 84053573
Fits:
FrontZR2 Model
or:
Front4WDLT Model or WT Model or Z71 ModelSINGLE USE3.42 Rear Axle Ratio (GU6)
or:
Front4WDZ71 Model4.10 Rear Axle Ratio (GT5)
Front4WD4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.5L L4 87861098
🇺🇸 US 🇨🇦 CA
Sealing Material: Rubber
Fitment notes — GM GENUINE 87861098
Sealing Material: Rubber
Fits:
6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.SINGLE USE4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
or:
6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.SINGLE USEExc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 87861099
🇺🇸 US 🇨🇦 CA
Fits ZR2 Modelor 3.42 Rear Axle Ratio (GU6)
Fitment notes — GM GENUINE 87861099
Fits:
ZR2 Modelor 3.42 Rear Axle Ratio (GU6)
or:
4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.SINGLE USE4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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TIMKEN Fits: all 2021 Colorado engines SL260575
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
RearRWD
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TIMKEN Fits: all 2021 Colorado engines SL260584
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front
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TIMKEN Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 SL260583
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear
Fitment notes — TIMKEN SL260583
Rear
RearLT Model or WT Model or Z71 Model or ZR2 Model
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This table covers the seals at the differential pinion yoke. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Differential Pinion Shaft Lock Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23493144
🇺🇸 US 🇨🇦 CA
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This table covers the Differential Pinion Shaft Lock bolts.

Differential Pinion Shim

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines 23471902
🇺🇸 US 🇨🇦 CA
Fits Front Differential4WD
Fitment notes — GM GENUINE 23471902
Fits:
Front Differential4WDExtended Cab Pickup74.0" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)1.39-1.43mmor 6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.39-1.43MM
or:
6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)1.39-1.43MM
Fits:
Front DifferentialZR2 ModelSINGLE USE1.39-1.43MM
or:
Front Differential4WDLT Model or WT Model or Z71 ModelSINGLE USE3.42 Rear Axle Ratio (GU6)1.39-1.43MM
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)1.39-1.43mm
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GM GENUINE Fits: all 2021 Colorado engines 23471901
🇺🇸 US 🇨🇦 CA
Fits Front Differential4WD
Fitment notes — GM GENUINE 23471901
Fits:
Front Differential4WD4.10 Rear Axle Ratio (GT5)1.44-1.48mmor 6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.44-1.48MM
or:
Extended Cab Pickup6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)1.44-1.48MM
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.44-1.48mm
Fits:
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.44-1.48mm
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)1.44-1.48mm
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GM GENUINE Fits: all 2021 Colorado engines 23471903
🇺🇸 US 🇨🇦 CA
Fits Front Differential4WD
Fitment notes — GM GENUINE 23471903
Fits:
Front Differential4WD4.10 Rear Axle Ratio (GT5)1.34-1.38mmor 6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.34-1.38MM
or:
6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)1.34-1.38MM
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.34-1.38mm
Fits:
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.34-1.38mm
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)1.34-1.38mm
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GM GENUINE Fits: all 2021 Colorado engines 23471904
🇺🇸 US 🇨🇦 CA
Fits 6 speed Automatic trans.67.25MM Inner Diameter
Fitment notes — GM GENUINE 23471904
Fits:
6 speed Automatic trans.67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.29-1.33mm
or:
Front Differential4WDSingle Use67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.29-1.33mmor 6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.29-1.33mm
Front Differential4WDSingle Use67.25MM Inner Diameter3.42 Rear Axle Ratio (GU6)1.29-1.33mm
Fits:
Front Differential4WDSingle Use67.25MM Inner Diameter3.42 Rear Axle Ratio (GU6)1.29-1.33mm
or:
Front Differential4WDZ71 ModelSingle Use67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.29-1.33mm
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GM GENUINE Fits: all 2021 Colorado engines 23471905
🇺🇸 US 🇨🇦 CA
Fits 6 speed Automatic trans.67.25MM Inner Diameter
Fitment notes — GM GENUINE 23471905
Fits:
6 speed Automatic trans.67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.24-1.28mm
or:
Front Differential4WDSingle Use67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.24-1.28mmor 6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.24-1.28mm
Front Differential4WDSingle Use67.25MM Inner Diameter3.42 Rear Axle Ratio (GU6)1.24-1.28mm
Fits:
Front Differential4WDSingle Use67.25MM Inner Diameter3.42 Rear Axle Ratio (GU6)1.24-1.28mm
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" WheelbaseSingle Use67.25MM Inner Diameter4.10 Rear Axle Ratio (GT5)1.24-1.28mm
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GM GENUINE Fits: all 2021 Colorado engines 23471906
🇺🇸 US 🇨🇦 CA
Fits Front Differential4WD
Fitment notes — GM GENUINE 23471906
Fits:
Front Differential4WD4.10 Rear Axle Ratio (GT5)1.19-1.23mmor 6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)1.19-1.23MM
or:
6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)1.19-1.23MM
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.19-1.23mm
Fits:
Front Differential4WD3.42 Rear Axle Ratio (GU6)1.19-1.23mm
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)1.19-1.23mm
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This table covers the Differential Pinion shims.

Differential Rebuild Kit

Master Kit

Brand Part Number Markets Notes Buy
USA STANDARD GEAR Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 USA11139
🇺🇸 US 🇨🇦 CA
Yukon Differential Master KitIncludes Pinion and Carrier Bearings, Shims, Ring Gear Bolts, Pin Nut, Pinion Seal, and Crush Sleeve
Fitment notes — USA STANDARD GEAR USA11139
Yukon Differential Master KitIncludes Pinion and Carrier Bearings, Shims, Ring Gear Bolts, Pin Nut, Pinion Seal, and Crush Sleeve
Rearwith 220mm Rear Differential
RearDana 220mm Rear
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BCA Fits: all 2021 Colorado engines NBDRK369MK
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Master Kit
Fitment notes — BCA NBDRK369MK
Master Kit
Front
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BCA Fits: all 2021 Colorado engines NBDRK367MK
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Master Kit
Fitment notes — BCA NBDRK367MK
Master Kit
Rearwith Dana M200 Axle
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Standard Kit

Brand Part Number Markets Notes Buy
BCA Popular Fits: all 2021 Colorado engines NBDRK367
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Standard Kit
Fitment notes — BCA NBDRK367
Standard Kit
Rearwith Dana M200 Axle
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BCA Fits: all 2021 Colorado engines NBDRK369
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Standard Kit
Fitment notes — BCA NBDRK369
Standard Kit
Front
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BCA Fits: all 2021 Colorado engines NBDRK368
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Standard Kit
Fitment notes — BCA NBDRK368
Standard Kit
Rearwith Dana M220 Axle
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This table covers kits that group the bearings, races and seals for a differential rebuild.

Differential Ring and Pinion

Brand Part Number Markets Notes Buy
DANA Popular Fits: all 2021 Colorado engines 10004299
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10004299
Spicer
Rearwith 4.10 Gear Ratiowith M220 Axle
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DANA Popular Fits: all 2021 Colorado engines 10005797
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 10005797
Spicer
Rearwith 3.42 Gear Ratiowith M220 Axle
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DANA Fits: all 2021 Colorado engines 2017552
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 2017552
Spicer
Frontwith 4.10 Gear Ratiowith Dana M190 Front Axle
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DANA Fits: 2.5L L4 2017232
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 2017232
Spicer
Rearwith 4.10 Gear Ratiowith M200 Axle
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DANA Fits: 2.5L L4 2017546
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Spicer
Fitment notes — DANA 2017546
Spicer
Front4WDwith Dana M190 Front Axlewith 3.42 Gear Ratio
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GM GENUINE Fits: 2.5L L4 23343867
🇺🇸 US 🇨🇦 CA
6 speed Automatic trans.200MM AXLES
Fitment notes — GM GENUINE 23343867
6 speed Automatic trans.200MM AXLES4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.5L L4 23471900
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23471900
Front4WD4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23471958
🇺🇸 US 🇨🇦 CA
Fits FrontZR2 Model
Fitment notes — GM GENUINE 23471958
Fits:
FrontZR2 Model
or:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
or:
Front4WDZ71 Model4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 23490356
🇺🇸 US 🇨🇦 CA
220MM AXLES
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This table covers the ring-and-pinion gear sets that set the axle ratio.

Differential Ring Gear Bolt

Brand Part Number Markets Notes Buy
AAM Fits: all 2021 Colorado engines 40061033
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
7/16" x 20 x .88" - Left Hand 6 PT Serrated Hex with Adhesivewith 7.6 (In) Front Axle
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GM GENUINE Fits: all 2021 Colorado engines 11549347
🇺🇸 US 🇨🇦 CA
Fits SINGLE USE
Fitment notes — GM GENUINE 11549347
Fits:
SINGLE USE
or:
Front Differential4WD4.10 Rear Axle Ratio (GT5)
Fits:
Front Differentialor SINGLE USE
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This table covers the Differential Ring Gear bolts.

Differential Spider Gear

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines 23471868
🇺🇸 US 🇨🇦 CA
Carrier Gear Kit
Fitment notes — GM GENUINE 23471868
Carrier Gear Kit
Front Axle
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AAM Fits: all 2021 Colorado engines 74043199
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Differential Spider and Pinion Gear Kit
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DANA Fits: all 2021 Colorado engines 10001183
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
FSGRCarrier Gear Kit
Fitment notes — DANA 10001183
FSGRCarrier Gear Kit
Rear Axlewith Standard Differentialwith 4.10 Gear Ratiowith Dana M220 / Dana 44 Advantek Rear Axle
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DANA Fits: all 2021 Colorado engines 10001239
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
FSGRCarrier Gear Kit
Fitment notes — DANA 10001239
FSGRCarrier Gear Kit
Rear Axlewith Standard Differentialwith 3.42 Gear Ratiowith Dana M200 Rear Axle
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GM GENUINE Fits: 2.5L L4 23490357
🇺🇸 US 🇨🇦 CA
Carrier Gear Kit
Fitment notes — GM GENUINE 23490357
Carrier Gear Kit
6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 3.6L V6 23490358
🇺🇸 US 🇨🇦 CA
Carrier Gear Kit
Fitment notes — GM GENUINE 23490358
Carrier Gear Kit
LT Model or WT Model or Z71 ModelExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
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This table covers the Differential Spider gears.

Differential Washer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23483008
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 23483008
Front4WD4.10 Rear Axle Ratio (GT5)Side Gear Thrust Washer
Fits:
Front4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)Side Gear Thrust Washer
or:
Front4WDCrew Cab Pickup74.0" Bed140.5" Wheelbase3.42 Rear Axle Ratio (GU6)Side Gear Thrust Washer
or:
Front4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)Side Gear Thrust Washer
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GM GENUINE Fits: all 2021 Colorado engines 23490400
🇺🇸 US 🇨🇦 CA
Fits 6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 23490400
Fits:
6 speed Automatic trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)Pinion Gear Thrust Washer
or:
Front Differential4WD4.10 Rear Axle Ratio (GT5)Pinion Thrust Washeror 6 speed Automatic trans.Exc. Positraction Limited-Slip Rear Axle (G80)4.10 Rear Axle Ratio (GT5)Pinion Gear Thrust Washer
Front Differential4WD3.42 Rear Axle Ratio (GU6)Pinion Thrust Washer
Fits:
Front Differential4WD3.42 Rear Axle Ratio (GU6)Pinion Thrust Washer
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" Bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)Pinion Thrust Washer
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GM GENUINE Fits: 3.6L V6 23490403
🇺🇸 US 🇨🇦 CA
Exc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
Fitment notes — GM GENUINE 23490403
Exc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)Side Gear Thrust Washer
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This table covers the Differential washers.

Drive Shaft

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: all 2021 Colorado engines 986434
🇺🇸 US 🇨🇦 CA
Length: 75.125"
Fitment notes — DORMAN 986434
Length: 75.125"
Rear4WDCrew Cab Pickup74.0" bed140.5" Wheelbase
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DORMAN Popular Fits: all 2021 Colorado engines 938385
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Length: 29"
Fitment notes — DORMAN 938385
Length: 29"
Front4WDConversion Shaft (New U-Joints)
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GM GENUINE Popular Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85109715
🇺🇸 US 🇨🇦 CA
Fits Rear4WD
Fitment notes — GM GENUINE 85109715
Fits:
Rear4WDLT Model or WT Model or Z71 Model61.7" bed128.3" Wheelbasewith RPO Code ACGU
or:
Rear4WDWT Model74.0" bed128.3" Wheelbasewith RPO Code ACGU
or:
Rear4WDLT Model or WT Model or Z71 Model61.7" Bed128.3" Wheelbasewith RPO Code ABPM, ACD3
or:
Rear4WDWT Model74.0" Bed128.3" Wheelbasewith RPO Code ABPM, ACD3
Fits:
Rear4WDLT Model or WT Model or Z71 Model128.3" Wheelbasewith RPO Code ACGU
or:
Rear4WDLT Model or WT Model or Z71 Model128.3" Wheelbasewith RPO Code ABPM, ACD3, ACGU
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GM GENUINE Popular Fits: 3.6L V6 85109713
🇺🇸 US 🇨🇦 CA
Fits RearRWD
Fitment notes — GM GENUINE 85109713
Fits:
RearRWD128.3" Wheelbase8 speed Automatic trans.Except 2 Speed Active Part Time 4WD Left Hand Drop Transfer Case (NQ6), 2 Speed Switch Activated Part Time 4WD Left Hand Drop Transfer Case (NQ7)with RPO Code ABPK, ACDX
or:
RearRWD128.3" Wheelbase8 speed Automatic trans.Except 2 Speed Active Part Time 4WD Left Hand Drop Transfer Case (NQ6), 2 Speed Switch Activated Part Time 4WD Left Hand Drop Transfer Case (NQ7)with RPO Code ACGS
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DORMAN Fits: 2.5L L4 986279
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Length: 84.87"
Fitment notes — DORMAN 986279
Length: 84.87"
RearRWD
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DORMAN Fits: 2.8L L4 DIESEL Turbocharged 966465
🇺🇸 US 🇨🇦 CA
Length: 81.25"
Fitment notes — DORMAN 966465
Length: 81.25"
RearRWD6 speed trans.128.3" Wheelbase
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DORMAN Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 986752
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Length: 63.3"
Fitment notes — DORMAN 986752
Length: 63.3"
Fits:
RearCrew Cab Pickup61.7" Bed128.3" Wheelbasewith RPO Code NQ6 (2 Speed, Part Time 4WD)with RPO Code ZR2 (High Rider Package)
or:
RearExtended Cab Pickup74.0" Bed128.3" Wheelbasewith RPO Code NQ6 (2 Speed, Part Time 4WD)with RPO Code ZR2 (High Rider Package)
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GM GENUINE Fits: 2.5L L4 85109716
🇺🇸 US 🇨🇦 CA
Fits Rear4WD
Fitment notes — GM GENUINE 85109716
Fits:
Rear4WDwith RPO Code ABPN
or:
Rear4WDwith RPO Code ACGV
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GM GENUINE Fits: all 2021 Colorado engines 84940461
🇺🇸 US 🇨🇦 CA
Front4WD
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 85109711
🇺🇸 US 🇨🇦 CA
RearZR2 Model
Fitment notes — GM GENUINE 85109711
RearZR2 Modelwith RPO Code Acdv, Acgpwith RPO Code AA68, ABPG, ACDV, ACGP
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GM GENUINE Fits: 3.6L V6 85109714
🇺🇸 US 🇨🇦 CA
RearRWD
Fitment notes — GM GENUINE 85109714
RearRWDLT Model or WT Model8 Speed Automatic Trans.with RPO Code ACGT
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GSP Fits: 2.8L L4 DIESEL Turbocharged PS902087
🇺🇸 US 🇨🇦 CA
RearZR2 Model
Fitment notes — GSP PS902087
RearZR2 Model1604 (mm) Length
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GSP Fits: 3.6L V6 PS901885
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear1902 (mm) Length
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WJB / INMOTION PARTS Fits: 2.5L L4, 2.8L L4 DIESEL Turbocharged WDS38385
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Front4WD
Fitment notes — WJB / INMOTION PARTS WDS38385
Front4WDConversion Shaft (New U-Joints)
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WJB / INMOTION PARTS Fits: 2.5L L4 WDS86279
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
RearRWD
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WJB / INMOTION PARTS Fits: 2.5L L4 WDS86434
🇺🇸 US 🇨🇦 CA
Rear4WD
Fitment notes — WJB / INMOTION PARTS WDS86434
Rear4WDCrew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the driveshafts that carry torque from the transmission or transfer case.

Drive Shaft Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 11548472
🇺🇸 US 🇨🇦 CA
RearSINGLE USE
Fitment notes — GM GENUINE 11548472
RearSINGLE USEM5/16-24X1.3
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GM GENUINE Fits: all 2021 Colorado engines 11588811
🇺🇸 US 🇨🇦 CA
RearWHEEL STUD
Fitment notes — GM GENUINE 11588811
RearWHEEL STUDM14X1.5X58
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This table covers the Drive Shaft bolts.

Drive Shaft CV Joint Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471896
🇺🇸 US 🇨🇦 CA
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This table covers the gaskets that seal the Drive Shaft CV Joint. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Drive Shaft End Yoke

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84473886
🇺🇸 US 🇨🇦 CA
Front Differential4WD
Fitment notes — GM GENUINE 84473886
Front Differential4WDExtended Cab Pickup74.0" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
Fits:
Front DifferentialZR2 Model
or:
Front Differential4WDLT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6)
or:
Front Differential4WDCrew Cab PickupZ71 Model61.7" bed128.3" Wheelbase4.10 Rear Axle Ratio (GT5)
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84506244
🇺🇸 US 🇨🇦 CA
Fits ZR2 Modelor 3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
Fitment notes — GM GENUINE 84506244
Fits:
ZR2 Modelor 3.42 Rear Axle Ratio (GU6)Positraction Limited-Slip Rear Axle (G80)
Fits:
ZR2 Modelor LT Model or WT Model or Z71 ModelExc. Positraction Limited-Slip Rear Axle (G80)3.42 Rear Axle Ratio (GU6)
or:
LT Model or WT Model or Z71 Model3.42 Rear Axle Ratio (GU6),Positraction Limited-Slip Rear Axle (G80)
or:
4WDCrew Cab PickupZ71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.4.10 Rear Axle Ratio (GT5),Positraction Limited-Slip Rear Axle (G80)
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This table covers the Drive Shaft End yokes.

Drive Shaft Retainer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23107857
🇺🇸 US 🇨🇦 CA
Single UseFor Vehicles with 30MM U-Joint Bearing Cups
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GM GENUINE Fits: all 2021 Colorado engines 11603594
🇺🇸 US 🇨🇦 CA
Front4WD
Fitment notes — GM GENUINE 11603594
Front4WDM10 X 1.5 X 59.75
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This table covers the Drive Shaft retainers.

Drive Shaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 2.5L L4, 2.8L L4 DIESEL Turbocharged B16870
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Material: FPM (fluoride rubber)Swirl Type: Left-hand Twist
Fitment notes — ELRING B16870
Material: FPM (fluoride rubber)Swirl Type: Left-hand Twist
Crew Cab PickupLT ModelBody code: 12N43Flange Seal
4WDCrew Cab PickupLT ModelBody code: 12N43Flange Seal
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This table covers the seals at the Drive Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Drive Shaft Slip Yoke

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23256322
🇺🇸 US 🇨🇦 CA
Fits FrontRWD
Fitment notes — GM GENUINE 23256322
Fits:
FrontRWDLT Model or WT Model8 speed Automatic trans.EXTERNAL SPLINE BOOTED
or:
FrontRWDLT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.EXTERNAL SPLINE BOOTED
or:
FrontRWDWT Model8 speed transmission74.0" bed128.3" Wheelbase8 Speed Automatic Trans.EXTERNAL SPLINE BOOTED
or:
FrontRWDWT Model or Z71 Model8 speed transmission61.7" bed128.3" Wheelbase8 Speed Automatic Trans.EXTERNAL SPLINE BOOTED
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This table covers the Drive Shaft Slip yokes.

Gear Oil

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: all 2021 Colorado engines VV975
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart
Fitment notes — VALVOLINE VV975
Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart
Fits:
Rear Differential
or:
Front Differential4WD
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ACDELCO Fits: all 2021 Colorado engines 104108
🇺🇸 US
1 QuartDexron 75W-90 ACDELCO
Fitment notes — ACDELCO 104108
1 QuartDexron 75W-90 ACDELCO
Fits:
Rear Differential
or:
Front Differential4WD
Fits:
Front DifferentialZR2 Model
or:
Rear DifferentialZR2 Model
or:
Front Differential4WDLT Model or WT Model or Z71 Model
or:
Rear DifferentialLT Model or WT Model or Z71 Model
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VALVOLINE Fits: all 2021 Colorado engines 889785
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill
Fitment notes — VALVOLINE 889785
Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill
Fits:
Rear Differential
or:
Front Differential4WD
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VALVOLINE Fits: all 2021 Colorado engines 882505
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon
Fitment notes — VALVOLINE 882505
Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon
Fits:
Rear Differential
or:
Front Differential4WD
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VALVOLINE Fits: all 2021 Colorado engines 723856
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon
Fitment notes — VALVOLINE 723856
Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon
Fits:
Rear Differential
or:
Front Differential4WD
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This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle.

Transfer Case Adapter

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4 84263509
🇺🇸 US 🇨🇦 CA
128.3" Wheelbase6 speed Automatic trans.
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged 84244085
🇺🇸 US 🇨🇦 CA
Fits 4WDCrew Cab Pickup
Fitment notes — GM GENUINE 84244085
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
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This table covers the Transfer Case adapters.

Transfer Case Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 11515758
🇺🇸 US 🇨🇦 CA
Crew Cab Pickup74.0" Bed
Fitment notes — GM GENUINE 11515758
Crew Cab Pickup74.0" Bed140.5" WheelbaseM8X1.25X30Housing Bolt
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GM GENUINE Fits: all 2021 Colorado engines 19169068
🇺🇸 US 🇨🇦 CA
Fits 4WD6 Speed Transmission
Fitment notes — GM GENUINE 19169068
Fits:
4WD6 Speed Transmission74.0" Bed128.3" WheelbaseM7X40,Selftapping,No WAXHousing Boltor 4WDWT Model74.0" Bed128.3" Wheelbase6 speed Automatic trans.M7X40,Selftapping,No WAXHousing Bolt
Fits:
4WDCrew Cab Pickup6 Speed Transmission74.0" Bed140.5" WheelbaseM7X40,Selftapping,No WAXHousing Boltor 4WD6 Speed Transmission128.3" WheelbaseM7X40,Selftapping,No WAXHousing Bolt
Fits:
4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" WheelbaseM7X40,Selftapping,No WAXHousing Boltor 4WD8 Speed Transmission128.3" WheelbaseM7X40,Selftapping,No WAXHousing Bolt
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This table covers the Transfer Case bolts.

Transfer Case Clutch Pressure Plate

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133077
🇺🇸 US 🇨🇦 CA
Steel
Fitment notes — GM GENUINE 19133077
Steel
4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.
Fits:
4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.or 4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.
Fits:
4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.or 4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.
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GM GENUINE Fits: all 2021 Colorado engines 84184296
🇺🇸 US 🇨🇦 CA
4WD6 Speed Transmission
Fitment notes — GM GENUINE 84184296
4WD6 Speed Transmission74.0" Bed128.3" WheelbaseApply
Fits:
4WDCrew Cab Pickup6 Speed Transmission74.0" Bed140.5" Wheelbase6 speed Automatic trans.Applyor 4WD6 Speed Transmission128.3" WheelbaseApply
Fits:
4WD8 speed Automatic trans.Applyor 4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" Wheelbase8 speed Automatic trans.Apply
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This table covers the Transfer Case Clutch Pressure plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts.

Transfer Case Clutch Pressure Plate Return Spring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133074
🇺🇸 US 🇨🇦 CA
4WD74.0" bed
Fitment notes — GM GENUINE 19133074
4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Clutch Pressure Plate Return springs. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats.

Transfer Case Control Module

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 87835510
🇺🇸 US 🇨🇦 CA
Fits 4WDCrew Cab Pickup
Fitment notes — GM GENUINE 87835510
Fits:
4WDCrew Cab Pickup74.0" Bed140.5" WheelbaseLabeled 87835510
or:
4WD128.3" WheelbaseLabeled 87835510
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This table covers the Transfer Case control modules.

Transfer Case Drive Chain

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23488113
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbas
Fitment notes — GM GENUINE 23488113
Fits:
128.3" Wheelbas
or:
Crew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the chains that drive the transfer case.

Transfer Case Driven Sprocket Retaining Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133113
🇺🇸 US 🇨🇦 CA
Fits 4WDWT Model
Fitment notes — GM GENUINE 19133113
Fits:
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.or 4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Driven Sprocket Retaining rings.

Transfer Case Fluid

ATF 64

Brand Part Number Markets Notes Buy
PENTOSIN Fits: all 2021 Colorado engines 1058113
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
1 LiterATF64 or ATF44
Fitment notes — PENTOSIN 1058113
1 LiterATF64 or ATF44ATF64 with Transmission Stamped MAM, NTJ, QNZ, QCE, SCUATF64, Clutch FluidATF64, with Trans. Stamped MANATF64, with Transmission Stamped MAM, MAN, NTJ, PDWATF64, without 10-Speed Trans.
4WD
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PENTOSIN Fits: all 2021 Colorado engines 1058215
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
5 LitersATF64 or ATF44
Fitment notes — PENTOSIN 1058215
5 LitersATF64 or ATF44ATF64, Clutch FluidATF64, with Trans. Stamped MANATF64, with Transmission Stamped MAM, MAN, NTJ, PDWATF64, with Transmission Stamped MAM, NTJ, QNZ, QCE, SCUATF64, without 10-Speed Trans.
4WD
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Dexron

Brand Part Number Markets Notes Buy
ACDELCO Popular Fits: all 2021 Colorado engines 109394
🇺🇸 US
Dexron VI1 Quart
Fitment notes — ACDELCO 109394
Dexron VI1 Quart
4WD
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ACDELCO Popular Fits: all 2021 Colorado engines 109243
🇺🇸 US
Container Type: Plastic Container
Fitment notes — ACDELCO 109243
Container Type: Plastic Container
4WD2 qt (US quarts) capacity
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MOBIL Fits: all 2021 Colorado engines 126411
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Dexron-VI ATF
Fitment notes — MOBIL 126411
Dexron-VI ATF
Component: Transfer Case
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VALVOLINE Fits: all 2021 Colorado engines 822405
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Dexron VI/Mercon LV ATF1 Quart
Fitment notes — VALVOLINE 822405
Dexron VI/Mercon LV ATF1 Quart
4WD
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VALVOLINE Fits: all 2021 Colorado engines 883572
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Dexron VI/Mercon LV ATF1 Gallon
Fitment notes — VALVOLINE 883572
Dexron VI/Mercon LV ATF1 Gallon
4WD
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Multi-Vehicle

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: all 2021 Colorado engines VV3246
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Quart
Fitment notes — VALVOLINE VV3246
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 QuartDEXRON VI, MERCON LV, DEX/MERC
4WD
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LUCAS OIL Fits: all 2021 Colorado engines 11255
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt
Fitment notes — LUCAS OIL 11255
LOW VISCOSITY SYNTHETIC MULTI-VEHICLE AUTOMATIC TRANSMISSION FLUID1 qt
4WD
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LUCAS OIL Fits: all 2021 Colorado engines 18037
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon
Fitment notes — LUCAS OIL 18037
Low Viscosity Synthetic Multi-Vehicle Automatic Transmission Fluid6 Gallon
4WD
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MOBIL Fits: all 2021 Colorado engines 126505
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Multi-Vehicle ATF
Fitment notes — MOBIL 126505
Multi-Vehicle ATF
Component: Transfer Case
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VALVOLINE Fits: all 2021 Colorado engines 773775
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
Fitment notes — VALVOLINE 773775
Max Life Multi-Vehicle or Maxlife Multi-Vehicle Full Synthetic ATF1 Gallon
4WD
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VALVOLINE Fits: all 2021 Colorado engines 881051
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
Fitment notes — VALVOLINE 881051
Maxlife Multi-Vehicle Full Synthetic ATF5 Gallon Bay Box
4WD
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Brand Part Number Markets Notes Buy
VALVOLINE Fits: all 2021 Colorado engines 899179
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Extended Protection Full Synthetic ATF1 Quart
Fitment notes — VALVOLINE 899179
Extended Protection Full Synthetic ATF1 Quart
4WD
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This table covers the fluids specified for the transfer case. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable.

Transfer Case Gasket

Brand Part Number Markets Notes Buy
GM GENUINE Popular Fits: all 2021 Colorado engines 94712155
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbase6 speed Automatic trans.or Crew Cab Pickup
Fitment notes — GM GENUINE 94712155
Fits:
128.3" Wheelbase6 speed Automatic trans.or Crew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.
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DORMAN Fits: all 2021 Colorado engines 926492
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
6 speed trans.
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DORMAN Fits: all 2021 Colorado engines 926499
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
8 speed trans.
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ELRING Fits: 2.5L L4, 2.8L L4 DIESEL Turbocharged B16910
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Material: AEM (Ethylene Acrylate Rubber)
Fitment notes — ELRING B16910
Material: AEM (Ethylene Acrylate Rubber)
4WDCrew Cab PickupLT ModelBody code: 12N43
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GM GENUINE Fits: all 2021 Colorado engines 23367389
🇺🇸 US 🇨🇦 CA
Fits Crew Cab PickupLT Model
Fitment notes — GM GENUINE 23367389
Fits:
Crew Cab PickupLT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupWT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
LT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
WT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupLT Model8 Speed Transmission140.5" Wheelbase2 Speed Switch Activated Part Time 4WD Left Hand Drop Transfer Case (NQ7)
or:
Crew Cab PickupWT Model8 Speed Transmission140.5" Wheelbase2 Speed Switch Activated Part Time 4WD Left Hand Drop Transfer Case (NQ7)
or:
LT Model8 Speed Transmission128.3" Wheelbase8 speed Automatic trans.2 Speed Switch Activated Part Time 4WD Left Hand Drop T
Fits:
ZR2 Model8 speed Automatic trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupLT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupZ71 Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Z71 Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupLT Model8
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This table covers the gaskets that seal the Transfer Case. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.

Transfer Case High / Low Clutch

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 2.8L L4 DIESEL Turbocharged 19299093
🇺🇸 US 🇨🇦 CA
Fits 4WDWT Model
Fitment notes — GM GENUINE 19299093
Fits:
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.or 4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
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This table covers the Transfer Case High / Low clutches. Typical signs include slip at highway speed, chatter on takeoff, or a pedal that stays low. Resurface or replace the flywheel with the clutch — a heat-checked flywheel wastes the new disc.

Transfer Case Housing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 23380409
🇺🇸 US 🇨🇦 CA
Rear4WD
Fitment notes — GM GENUINE 23380409
Rear4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
Rear4WD8 speed Automatic trans.128.3" Wheelbase
or:
Rear4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: all 2021 Colorado engines 84636465
🇺🇸 US 🇨🇦 CA
Fits Front4WD
Fitment notes — GM GENUINE 84636465
Fits:
Front4WDExtended Cab Pickup128.3" Wheelbase6 speed Automatic trans.or FrontRWD128.3" Wheelbase6 speed Automatic trans.
Fits:
Front4WDCrew Cab PickupZ71 Model6 speed Automatic trans.or FrontZR2 Model6 speed Automatic trans.or Front4WDCrew Cab PickupWT Model140.5" Wheelbase6 speed Automatic trans.or Front4WDWT Model128.3" Wheelbase6 speed Automatic trans.or FrontCrew Cab PickupLT Model128.3" Wheelbase6 speed Automatic trans.or Front4WDCrew Cab PickupLT Model140.5" Wheelbase6 speed Automatic trans.
Fits:
FrontZR2 Model8 speed Automatic trans.or Front4WDCrew Cab PickupZ71 Model8 speed Automatic trans.140.5" Wheelbase
or:
Front4WDCrew Cab PickupLT Model8 speed Automatic trans.140.5" Wheelbase
or:
Front4WDCrew Cab PickupWT Model8 speed Automatic trans.140.5" Wheelbase
or:
Front4WDLT Model8 speed Automatic trans.128.3" Wheelbase
or:
Front4WDWT Model8 speed Automatic trans.128.3" Wheelbase
or:
Front4WDZ71 Model8 speed Automatic trans.128.3" Wheelbase
or:
FrontRWDCrew Cab PickupLT Model8 speed Automatic trans.140.5" Wheelbase
or:
FrontRWDCrew Cab PickupWT Model8 speed Automatic trans.140.5" Wheelbase
or:
FrontRWDLT Model8 speed Automatic trans.128.3" Wheelbase
or:
FrontRWDWT Model8 speed Automatic trans.128.3" Wheelbase
or:
FrontRWDCrew Cab PickupZ71 Model8 speed Automatic trans.128.3" Wheelbase
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 19133109
🇺🇸 US 🇨🇦 CA
Fits 4WDCrew Cab Pickup
Fitment notes — GM GENUINE 19133109
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 84402109
🇺🇸 US 🇨🇦 CA
Volume (cu In): 2228.5158cu In
Fitment notes — GM GENUINE 84402109
Volume (cu In): 2228.5158cu In
Fits:
Rear4WD128.3" Wheelbase6 speed Automatic trans.or Rear4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.
Fits:
Rear4WD8 speed Automatic trans.128.3" Wheelbase
or:
Rear4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case housings.

Transfer Case Housing Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133165
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbas
Fitment notes — GM GENUINE 19133165
Fits:
128.3" Wheelbas
or:
Crew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Housing plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.

Transfer Case Input Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23488111
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbase6 speed Automatic trans.or Crew Cab Pickup
Fitment notes — GM GENUINE 23488111
Fits:
128.3" Wheelbase6 speed Automatic trans.or Crew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.
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GM GENUINE Fits: 3.6L V6 23313679
🇺🇸 US 🇨🇦 CA
Fits ZR2 Model8 speed Automatic trans.
Fitment notes — GM GENUINE 23313679
Fits:
ZR2 Model8 speed Automatic trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupLT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupWT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupZ71 Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
LT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
WT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Z71 Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
Crew Cab PickupLT Model8
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This table covers the Transfer Case Input shafts.

Transfer Case Input Shaft Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133006
🇺🇸 US 🇨🇦 CA
Fits 4WDWT Model
Fitment notes — GM GENUINE 19133006
Fits:
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.or 4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Input Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Transfer Case Input Shaft Pilot Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19132983
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbas
Fitment notes — GM GENUINE 19132983
Fits:
128.3" Wheelbas
or:
Crew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Input Shaft Pilot bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Transfer Case Input Shaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: all 2021 Colorado engines B16870
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Material: FPM (fluoride rubber)Swirl Type: Left-hand Twist
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GM GENUINE Fits: all 2021 Colorado engines 19299084
🇺🇸 US 🇨🇦 CA
Fits 128.3" WheelbaseFOR DRY CAVITY
Fitment notes — GM GENUINE 19299084
Fits:
128.3" WheelbaseFOR DRY CAVITY
or:
Crew Cab Pickup74.0" bed140.5" WheelbaseFOR DRY CAVITY
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This table covers the seals at the Transfer Case Input Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transfer Case Motor

Brand Part Number Markets Notes Buy
DORMAN Popular Fits: all 2021 Colorado engines 600899
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ6 (2 Speed, Part Time 4WD)
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GM GENUINE Popular Fits: 2.5L L4, 3.6L V6 84115497
🇺🇸 US 🇨🇦 CA
4WDWT Model
Fitment notes — GM GENUINE 84115497
4WDWT Model6 Speed Transmission74.0" Bed128.3" WheelbaseMating Connector Use 193297433 mounting holes
Fits:
4WD8 Speed Transmission128.3" Wheelbase8 speed Automatic trans.Mating Connector Use 193297433 mounting holesor 4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" WheelbaseMating Connector Use 193297433 mounting holes
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GM GENUINE Popular Fits: all 2021 Colorado engines 84718571
🇺🇸 US 🇨🇦 CA
Fits 4WDCrew Cab Pickup
Fitment notes — GM GENUINE 84718571
Fits:
4WDCrew Cab Pickup6 Speed Transmission74.0" Bed140.5" WheelbaseMating Connector Use 19369184
or:
4WD6 Speed Transmission128.3" WheelbaseMating Connector Use 19369184
4WD6 Speed Transmission74.0" Bed128.3" WheelbaseMating Connector Use 19369184
Fits:
4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" WheelbaseMating Connector Use 19369184
or:
4WD8 Speed Transmission128.3" WheelbaseMating Connector Use 19369184
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CARDONE Fits: all 2021 Colorado engines 83125
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4WDwith 2 Speed Active Transfer Case (NQ6)
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SKP Fits: all 2021 Colorado engines SK600914
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ7 (2 Speed, Part Time Transfer Case, Switch Activated, 2.72 Drop Ratio)
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SKP Fits: all 2021 Colorado engines SK600899A
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ6 (2 Speed, Part Time 4WD)
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STANDARD MOTOR PRODUCTS Fits: 2.5L L4 TCM110
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO code NQ6
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 TCM102
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ7
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WAI GLOBAL Fits: all 2021 Colorado engines TC1019
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ7 2 SpeedPart Time Transfer Case
Fitment notes — WAI GLOBAL TC1019
with RPO Code NQ7 2 SpeedPart Time Transfer CaseSwitch Activated2.72 Drop Ratio
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WAI GLOBAL Fits: all 2021 Colorado engines TC1007
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
with RPO Code NQ6 2 SpeedPart Time 4WD
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This table covers the Transfer Case motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor.

Transfer Case Oil Pump

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84888175
🇺🇸 US 🇨🇦 CA
Fits 128.3" Wheelbas
Fitment notes — GM GENUINE 84888175
Fits:
128.3" Wheelbas
or:
Crew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.

Transfer Case Output Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133059
🇺🇸 US 🇨🇦 CA
Fits Rear4WD
Fitment notes — GM GENUINE 19133059
Fits:
Rear4WD128.3" Wheelbase6 speed Automatic trans.or Rear4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or Rear4WD8 speed Automatic trans.128.3" Wheelbase
or:
Rear4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: all 2021 Colorado engines 84518611
🇺🇸 US 🇨🇦 CA
Fits Front6 speed transmission
Fitment notes — GM GENUINE 84518611
Fits:
Front6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontWT Model6 Speed Transmission128.3" Wheelbase2 Speed Switch Activated Part Time 4WD Left Hand Drop Transfer Case (NQ7)
Fits:
FrontCrew Cab PickupLT Model or Z71 Model6 speed Automatic trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontZR2 Model6 speed Automatic trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontCrew Cab PickupWT Model6 speed transmission140.5" Wheelbase6 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontWT Model6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
Fits:
FrontZR2 Model8 speed Automatic trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontCrew Cab PickupLT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontCrew Cab PickupWT Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontCrew Cab PickupZ71 Model8 speed transmission140.5" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontLT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontWT Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Transfer Case (NQ6)
or:
FrontZ71 Model8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.2 Speed Active Part Time 4WD L/H Drop Tr
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This table covers the Transfer Case Output shafts.

Transfer Case Output Shaft Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19133127
🇺🇸 US 🇨🇦 CA
Fits Rear Rearward128.3" Wheelbase
Fitment notes — GM GENUINE 19133127
Fits:
Rear Rearward128.3" Wheelbase40X80X18
or:
Rear RearwardCrew Cab Pickup74.0" bed140.5" Wheelbase40X80X18
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GM GENUINE Fits: all 2021 Colorado engines 23488106
🇺🇸 US 🇨🇦 CA
Fits Front Rearward4WD
Fitment notes — GM GENUINE 23488106
Fits:
Front Rearward4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.or Front Rearward4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.
Fits:
Front Rearward4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.or Front Rearward4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.
Fits:
Front Rearward4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.or Front Rearward4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.
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GM GENUINE Fits: all 2021 Colorado engines 19133136
🇺🇸 US 🇨🇦 CA
Fits Front Forward4WD
Fitment notes — GM GENUINE 19133136
Fits:
Front Forward4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.or Front ForwardWT Model128.3" Wheelbase6 speed Automatic trans.or Front Rearward4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.or Front Rearward4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.
Fits:
Front Forward4WD128.3" Wheelbase6 speed Automatic trans.or Front Rearward4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.
Fits:
Front Forward4WD8 speed Automatic trans.128.3" Wheelbase
or:
Front Forward4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
or:
Front Rearward4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.or Front Rearward4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.
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GM GENUINE Fits: all 2021 Colorado engines 19133111
🇺🇸 US 🇨🇦 CA
Fits Rear Rearward128.3" Wheelbase
Fitment notes — GM GENUINE 19133111
Fits:
Rear Rearward128.3" Wheelbase46X53X20
or:
Rear RearwardCrew Cab Pickup74.0" bed140.5" Wheelbase46X53X20
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This table covers the Transfer Case Output Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.

Transfer Case Output Shaft Bushing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19207729
🇺🇸 US 🇨🇦 CA
Fits 4WD6 speed transmission
Fitment notes — GM GENUINE 19207729
Fits:
4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.or 4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.
Fits:
4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.or 4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.
Fits:
128.3" Wheelbase8 speed Automatic trans.or Crew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.
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This table covers the Transfer Case Output Shaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.

Transfer Case Output Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 24233898
🇺🇸 US 🇨🇦 CA
Fits Rear4WD
Fitment notes — GM GENUINE 24233898
Fits:
Rear4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
or:
Rear4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
Fits:
Rear4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
or:
Rear4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
Fits:
Rear4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
or:
Rear4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.37.1MM WIDTH/THICKNESS
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GM GENUINE Fits: all 2021 Colorado engines 84368195
🇺🇸 US 🇨🇦 CA
Fits Front128.3" Wheelbase
Fitment notes — GM GENUINE 84368195
Fits:
Front128.3" Wheelbase
or:
FrontCrew Cab Pickup74.0" bed140.5" Wheelbase
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SKF Fits: all 2021 Colorado engines 18860
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear
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This table covers the seals at the Transfer Case Output Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transfer Case Planetary Carrier

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 19299090
🇺🇸 US 🇨🇦 CA
Fits 4WD6 speed transmission
Fitment notes — GM GENUINE 19299090
Fits:
4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
or:
4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
Fits:
4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
or:
4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
Fits:
4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
or:
4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.3 TABUse with 19300745 AND 19300746 FOR ALL 2006
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This table covers the planetary carriers in the transfer case.

Transfer Case Range Position Sensor

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 84377721
🇺🇸 US 🇨🇦 CA
4WD74.0" bed
Fitment notes — GM GENUINE 84377721
4WD74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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WELLS Fits: all 2021 Colorado engines 5S12117
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
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This table covers the Transfer Case Range position sensors. Typical signs include a stall, a no-start, or a code for cam or crank correlation. Check the connector and the reluctor gap before replacing the sensor.

Transfer Case Range Shift Hub

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.8L L4 DIESEL Turbocharged, 3.6L V6 19133075
🇺🇸 US 🇨🇦 CA
Fits 4WDCrew Cab Pickup
Fitment notes — GM GENUINE 19133075
Fits:
4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or 4WD128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Range Shift hubs.

Transfer Case Shift Fork

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23488114
🇺🇸 US 🇨🇦 CA
Fits High/Low128.3" Wheelbas
Fitment notes — GM GENUINE 23488114
Fits:
High/Low128.3" Wheelbas
or:
High/LowCrew Cab Pickup74.0" bed140.5" Wheelbase
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This table covers the forks that move a transfer-case shift collar.

Transfer Case Shift Fork Insert

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 19133044
🇺🇸 US 🇨🇦 CA
2WD/4WDWT Model
Fitment notes — GM GENUINE 19133044
2WD/4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
2WD/4WD8 speed Automatic trans.128.3" Wheelbas
or:
2WD/4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: all 2021 Colorado engines 19260066
🇺🇸 US 🇨🇦 CA
Fits High/Low4WD
Fitment notes — GM GENUINE 19260066
Fits:
High/Low4WD128.3" Wheelbase6 speed Automatic trans.or High/Low4WDCrew Cab Pickup74.0" bed140.5" Wheelbase6 speed Automatic trans.or High/Low4WD8 speed Automatic trans.128.3" Wheelbas
or:
High/Low4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbas
or:
High/Low4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
or:
High/Low4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Shift Fork inserts.

Transfer Case Shift Mode Synchronizer Assembly

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 19133208
🇺🇸 US 🇨🇦 CA
4WDWT Model
Fitment notes — GM GENUINE 19133208
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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GM GENUINE Fits: 2.5L L4, 3.6L V6 85627201
🇺🇸 US 🇨🇦 CA
Fits 4WDWT Model
Fitment notes — GM GENUINE 85627201
Fits:
4WDWT Model6 speed Automatic trans.Synchronizer Assemblyor 4WDWT Model6 Speed Transmission74.0" Bed128.3" WheelbaseSynchronizer Assembly
Fits:
4WD8 speed Automatic trans.Synchronizer Assemblyor 4WD8 Speed Transmission128.3" WheelbaseSynchronizer Assemblyor 4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" WheelbaseSynchronizer Assemblyor 4WDLT Model or WT Model or Z71 Model8 speed Automatic trans.Synchronizer Assembly
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This table covers the Transfer Case Shift Mode Synchronizer assemblies.

Transfer Case Shift Mode Synchronizer Blocking Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 19133094
🇺🇸 US 🇨🇦 CA
4WDWT Model
Fitment notes — GM GENUINE 19133094
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Shift Mode Synchronizer Blocking rings.

Transfer Case Shift Mode Synchronizer Hub

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 19133093
🇺🇸 US 🇨🇦 CA
4WDWT Model
Fitment notes — GM GENUINE 19133093
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Shift Mode Synchronizer hubs.

Transfer Case Shift Mode Synchronizer Insert

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.5L L4, 3.6L V6 19133095
🇺🇸 US 🇨🇦 CA
4WDWT Model
Fitment notes — GM GENUINE 19133095
4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
4WD8 speed Automatic trans.128.3" Wheelbas
or:
4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case Shift Mode Synchronizer inserts.

Transfer Case Shift Shaft Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 2.5L L4 B16810
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
4WDCrew Cab Pickup
Fitment notes — ELRING B16810
4WDCrew Cab PickupLT ModelBody code: 12N43
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This table covers the seals at the Transfer Case Shift Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.

Transfer Case Sprocket

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23488095
🇺🇸 US 🇨🇦 CA
Drive4WD
Fitment notes — GM GENUINE 23488095
Drive4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.7/16X1.25
Fits:
Drive4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.7/16X1.25
or:
Drive4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.7/16X1.25
Fits:
Drive4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.7/16X1.25
or:
Drive4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.7/16X1.25
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GM GENUINE Fits: all 2021 Colorado engines 23488096
🇺🇸 US 🇨🇦 CA
Fits Driven4WD
Fitment notes — GM GENUINE 23488096
Fits:
Driven4WD6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.7/16X1.25
or:
Driven4WDWT Model6 speed transmission74.0" bed128.3" Wheelbase6 Speed Automatic Trans.7/16X1.25
Fits:
Driven4WDCrew Cab Pickup6 speed transmission74.0" bed140.5" Wheelbase6 Speed Automatic Trans.7/16X1.25
or:
Driven4WD6 speed transmission128.3" Wheelbase6 Speed Automatic Trans.7/16X1.25
Fits:
Driven4WDCrew Cab Pickup8 speed transmission74.0" bed140.5" Wheelbase8 Speed Automatic Trans.7/16X1.25
or:
Driven4WD8 speed transmission128.3" Wheelbase8 Speed Automatic Trans.7/16X1.25
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GM GENUINE Fits: 2.5L L4, 3.6L V6 23488107
🇺🇸 US 🇨🇦 CA
Drive4WD
Fitment notes — GM GENUINE 23488107
Drive4WDWT Model74.0" bed128.3" Wheelbase6 speed Automatic trans.
Fits:
Drive4WD8 speed Automatic trans.128.3" Wheelbas
or:
Drive4WDCrew Cab Pickup8 speed Automatic trans.74.0" bed140.5" Wheelbase
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This table covers the Transfer Case sprockets.

Transfer Case Thrust Washer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 15547390
🇺🇸 US 🇨🇦 CA
Rear4WD
Fitment notes — GM GENUINE 15547390
Rear4WDWT Model6 Speed Transmission74.0" Bed128.3" Wheelbase6 speed Automatic trans.
Fits:
Rear4WDCrew Cab Pickup6 Speed Transmission74.0" Bed140.5" Wheelbase6 speed Automatic trans.or Rear4WD6 Speed Transmission128.3" Wheelbase6 speed Automatic trans.
Fits:
Rear4WDCrew Cab Pickup8 Speed Transmission74.0" Bed140.5" Wheelbase
or:
Rear4WD8 Speed Transmission128.3" Wheelbase
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GM GENUINE Fits: all 2021 Colorado engines 19300746
🇺🇸 US 🇨🇦 CA
3 Tab Design
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This table covers the Transfer Case Thrust washers.

Universal Joint

Heavy Duty

Brand Part Number Markets Notes Buy
ACDELCO Fits: all 2021 Colorado engines 45U0109
🇺🇸 US 🇨🇦 CA
Greasable Super Strength
Fitment notes — ACDELCO 45U0109
Greasable Super Strength
Fits:
Front Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-upLocation End of Cap
or:
Rear Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-upLocation End of Cap
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ACDELCO Fits: all 2021 Colorado engines 45U0123
🇺🇸 US 🇨🇦 CA
Non-Greasable Super Strength
Fitment notes — ACDELCO 45U0123
Non-Greasable Super Strength
Fits:
Front Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-up
or:
Rear Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-up
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GMB Fits: all 2021 Colorado engines 2150178
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Performance GradeGreasable
Fitment notes — GMB 2150178
Performance GradeGreasableGrease Fitting in Cross1.188" Bearing Cap DiameterOutside Lock Rings
Fits:
Rear Shaft All Joints4WD
or:
Rear Shaft All JointsRWD
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MOOG Fits: all 2021 Colorado engines 222C
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Super StrengthGreasable
Fitment notes — MOOG 222C
Super StrengthGreasable
Rear Driveshaft At Rear Axlewith Aluminum Driveshaftwith Lube Fitting in Bearing Cup
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Standard Replacement

Brand Part Number Markets Notes Buy
GMB Popular Fits: all 2021 Colorado engines 2100178
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
GreasableGrease Fitting in Cross
Fitment notes — GMB 2100178
GreasableGrease Fitting in Cross1.188" Bearing Cap DiameterOutside Lock Rings
Fits:
Rear Shaft All Joints4WD
or:
Rear Shaft All JointsRWD
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GMB Popular Fits: all 2021 Colorado engines 2100447
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Non-Greasable1.188" Bearing Cap Diameter
Fitment notes — GMB 2100447
Non-Greasable1.188" Bearing Cap DiameterOutside Lock Rings
Fits:
Rear Shaft All Joints4WD
or:
Rear Shaft All JointsRWD
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ACDELCO Fits: all 2021 Colorado engines 45U0103
🇺🇸 US 🇨🇦 CA
Gold
Fitment notes — ACDELCO 45U0103
Gold
Fits:
Front Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-upGreasable (Location In cross)
or:
Rear Shaftwith 1.188 In. Bearing Cup Diameter, with 3.625 In. Outside Lock-upGreasable (Location In cross)
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GM GENUINE Fits: all 2021 Colorado engines 84807275
🇺🇸 US 🇨🇦 CA
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MOOG Fits: all 2021 Colorado engines 331C
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
GreasableGrease Fitting In Body
Fitment notes — MOOG 331C
GreasableGrease Fitting In Body
Fits:
Rear Driveshaft At Rear Axlewith Aluminum Driveshaft
or:
Rear Driveshaft At Transmissionwith Aluminum Driveshaft
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This table covers the U-joints in the driveshaft.

Universal Joint C-Clip

Brand Part Number Markets Notes Buy
GM GENUINE Fits: all 2021 Colorado engines 23471512
🇺🇸 US 🇨🇦 CA
SNAP RING
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This table covers the C-clips that retain a U-joint bearing cup.

Universal Joint Strap Kit

Brand Part Number Markets Notes Buy
DORMAN Fits: all 2021 Colorado engines 13862
🇺🇸 US 🇨🇦 CA 🇲🇽 MX
Rear Driveshaft At Rear Axlewith 30 mm U-Joint Bearing Cap
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This table covers the Universal Joint Strap kits.

Buying Drivetrain Parts for a 2021 Chevrolet Colorado

On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.

  • Match the engine first. Some drivetrain parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
  • Read the notes on each row for position, trim and spec qualifiers before you order.
  • Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
  • Cross-reference the manufacturer part number against your old part or a service-manual listing.

Start with the largest groups on this page: Drive Shaft and Transfer Case Fluid .

Frequently Asked Questions

How many drivetrain parts fit the 2021 Chevrolet Colorado?

Our catalog currently lists 263 drivetrain parts for the 2021 Chevrolet Colorado across 87 subcategories and 27 brands, covering all 3 engine options (2.5L L4, 2.8L L4 DIESEL Turbocharged and 3.6L V6). Each part is matched to the engine(s) it fits.

Do drivetrain parts differ between 2021 Chevrolet Colorado engines?

Some do. 164 parts fit every engine; the other 99 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of drivetrain problems on a 2021 Chevrolet Colorado?

Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

What should I replace at the same time?

Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.

What do the market flags (US, CA, MX) on each part mean?

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Chevrolet Colorado was originally sold in the US, the safest choice is a part marked for the US market.

How do I make sure a part fits my 2021 Chevrolet Colorado?

First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.

Other Parts for the 2021 Chevrolet Colorado

Drivetrain Parts for Other Chevrolet Colorado Years

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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.