2020 Cadillac CT4 Drivetrain Parts

Engine:

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

This page lists 40 drivetrain parts for the 2020 Cadillac CT4, across 22 part types, covering both the 2.0L L4 Turbocharged and the 2.7L L4 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.

The drivetrain system on the 2020 Cadillac CT4 moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are Gear Oil (6 parts), CV Axle (4 parts) and Differential Carrier Bolt (3 parts). The other 19 part types cover the remaining 27 parts.

Axle / Differential Assembly

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84793108
🇺🇸 US 🇨🇦 CA
Rear8 speed Automatic trans.
Fitment notes — GM GENUINE 84793108
Rear8 speed Automatic trans.Sport Suspension (FE3)
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This table covers the Axle / Differential assemblies.

Axle Intermediate Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 23269758
🇺🇸 US 🇨🇦 CA
FrontAWD
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This table covers the seals at the Axle Intermediate 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.

Axle Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84479766
🇺🇸 US 🇨🇦 CA
Rear8 speed Automatic trans
Fitment notes — GM GENUINE 84479766
Rear8 speed Automatic transRide and Handling Suspension Code (FE2)
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GM GENUINE Fits: 2.0L L4 Turbocharged 84537630
🇺🇸 US 🇨🇦 CA
Rear8 speed Automatic trans.
Fitment notes — GM GENUINE 84537630
Rear8 speed Automatic trans.Sport Suspension (FE3)
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This table covers the Axle shafts.

Axle Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 291367
🇺🇸 US 🇨🇦 CA
Fits Rear8 speed Automatic trans
Fitment notes — GM GENUINE 291367
Fits:
Rear8 speed Automatic transRide and Handling Suspension Code (FE2)
or:
Rear8 speed Automatic trans.Sport Suspension (FE3)
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GM GENUINE Fits: 2.0L L4 Turbocharged 23269761
🇺🇸 US 🇨🇦 CA
FrontAWD
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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

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 87829455
🇺🇸 US 🇨🇦 CA
Front LeftAWD
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GM GENUINE Fits: 2.0L L4 Turbocharged 87829456
🇺🇸 US 🇨🇦 CA
Front RightAWD
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TRAKMOTIVE Fits: 2.0L L4 Turbocharged GM86049
🇺🇸 US 🇨🇦 CA
Rear Left
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TRAKMOTIVE Fits: 2.0L L4 Turbocharged GM86050
🇺🇸 US 🇨🇦 CA
Rear Right
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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 Intermediate Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84632509
🇺🇸 US 🇨🇦 CA
FrontAWD
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TRAKMOTIVE Fits: 2.0L L4 Turbocharged GM3511
🇺🇸 US 🇨🇦 CA
Front LeftAWD
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This table covers the CV Intermediate shafts.

CV Joint Boot

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84788028
🇺🇸 US 🇨🇦 CA
Front Inner and OuterAWD
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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 Lock Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84210850
🇺🇸 US 🇨🇦 CA
Front InnerAWD
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This table covers the CV Joint Lock rings.

Differential Carrier

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 86555801
🇺🇸 US 🇨🇦 CA
8 speed Automatic trans.Ride and Handling Suspension Code (FE2)
Fitment notes — GM GENUINE 86555801
8 speed Automatic trans.Ride and Handling Suspension Code (FE2)Open Differential205mm
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This table covers the carriers that hold the differential gears in the axle.

Differential Carrier Bolt

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 11611275
🇺🇸 US 🇨🇦 CA
SINGLE USEM16X2X111,23THD
Fitment notes — GM GENUINE 11611275
SINGLE USEM16X2X111,23THD43.5 OD
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GM GENUINE Fits: 2.0L L4 Turbocharged 11610911
🇺🇸 US 🇨🇦 CA
AWDM12X1.75X86
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GM GENUINE Fits: 2.0L L4 Turbocharged 11609607
🇺🇸 US 🇨🇦 CA
SINGLE USEM12X1.75X90
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This table covers the Differential Carrier bolts.

Differential Carrier Bushing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 20762354
🇺🇸 US 🇨🇦 CA
Mounted In Differential Housing
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GM GENUINE Fits: 2.0L L4 Turbocharged 20762248
🇺🇸 US 🇨🇦 CA
Mounted in Cradle
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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 Fill / Drain Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84479772
🇺🇸 US 🇨🇦 CA
Fits 8 speed Automatic trans.Ride and Handling Suspension Code (FE2)
Fitment notes — GM GENUINE 84479772
Fits:
8 speed Automatic trans.Ride and Handling Suspension Code (FE2)M22X1.5X12.4 INT Hex
or:
Front DifferentialAWDM22X1.5X12.4 INT Hex
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GM GENUINE Fits: 2.0L L4 Turbocharged 84793109
🇺🇸 US 🇨🇦 CA
8 speed Automatic trans.Sport Suspension (FE3)
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This table covers the Differential Fill drain plugs.

Differential Pinion Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84479771
🇺🇸 US 🇨🇦 CA
8 speed Automatic trans.SINGLE USE
Fitment notes — GM GENUINE 84479771
8 speed Automatic trans.SINGLE USERIDE AND HANDLING Suspension Code (FE2)
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GM GENUINE Fits: 2.0L L4 Turbocharged 84537633
🇺🇸 US 🇨🇦 CA
8 speed Automatic trans.Sport Suspension (FE3)
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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.

Drive Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 86519099
🇺🇸 US 🇨🇦 CA
Universal Joints Included: No
Fitment notes — GM GENUINE 86519099
Universal Joints Included: No
RearAWD8 speed Automatic trans.with RPO Code AB7M, AB3K, Abvb, AB9X, ACF4, Aclr
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GM GENUINE Fits: 2.0L L4 Turbocharged 86519098
🇺🇸 US 🇨🇦 CA
Universal Joints Included: No
Fitment notes — GM GENUINE 86519098
Universal Joints Included: No
RearRWD8 speed Automatic trans.with RPO Code AB7J, AB3G, ABU8, AB9W, ACF3, ACLP
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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: 2.0L L4 Turbocharged 11546698
🇺🇸 US 🇨🇦 CA
RearM12X1.75X64,62THD
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This table covers the Drive Shaft bolts.

Drive Shaft Flange Yoke

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 85514204
🇺🇸 US 🇨🇦 CA
At Rear Axle8 speed Automatic trans
Fitment notes — GM GENUINE 85514204
At Rear Axle8 speed Automatic transRide and Handling Suspension Code (FE2)
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This table covers the Drive Shaft Flange yokes.

Drive Shaft Retainer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 10363385
🇺🇸 US 🇨🇦 CA
FrontM8X1.25X49.5
Fitment notes — GM GENUINE 10363385
FrontM8X1.25X49.5Contains 2 Torx Head Bolts and 1 Curved Flat Washer
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This table covers the Drive Shaft retainers.

Gear Oil

SAE 75W-85

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.0L L4 Turbocharged 104122
🇺🇸 US
75W-85 (Dexron Low Viscosity) 32 OZ
Fitment notes — ACDELCO 104122
75W-85 (Dexron Low Viscosity) 32 OZ
Rear DifferentialRide and Handling Suspension (FE2)Except Korea (CW1)
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SAE 75W-90

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: 2.0L L4 Turbocharged VV975
🇺🇸 US 🇨🇦 CA
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 DifferentialAWD
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VALVOLINE Popular Fits: 2.0L L4 Turbocharged 889785
🇺🇸 US 🇨🇦 CA
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 DifferentialAWD
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ACDELCO Fits: 2.0L L4 Turbocharged 104108
🇺🇸 US
1 QuartDexron 75W-90 ACDELCO
Fitment notes — ACDELCO 104108
1 QuartDexron 75W-90 ACDELCO
Front DifferentialAWD
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VALVOLINE Fits: 2.0L L4 Turbocharged 882505
🇺🇸 US 🇨🇦 CA
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 DifferentialAWD
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VALVOLINE Fits: 2.0L L4 Turbocharged 723856
🇺🇸 US 🇨🇦 CA
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 DifferentialAWD
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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 Fluid

Brand Part Number Markets Notes Buy
ACDELCO Fits: 2.0L L4 Turbocharged 104044
🇺🇸 US
33.8 OZ/1L
Fitment notes — ACDELCO 104044
33.8 OZ/1L
AWD
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VALVOLINE Fits: 2.0L L4 Turbocharged 888170
🇺🇸 US 🇨🇦 CA
Unitrac LV Fluid5 Gallon Pail
Fitment notes — VALVOLINE 888170
Unitrac LV Fluid5 Gallon Pail
AWD
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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 Fluid Temperature Sensor

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 19179158
🇺🇸 US 🇨🇦 CA
AWD
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This table covers the Transfer Case Fluid temperature sensors. Typical signs include hard cold starts, a fan that never comes on, or a gauge that disagrees with the scan tool. A sensor that reads open or shorted is usually the part; an implausible-but-smooth reading can be wiring.

Transfer Case Input Shaft

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 2.0L L4 Turbocharged 84025382
🇺🇸 US 🇨🇦 CA
AWD8 speed Automatic trans.
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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: 2.0L L4 Turbocharged 89059519
🇺🇸 US 🇨🇦 CA
AWD8 speed Automatic trans.
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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.

Buying Drivetrain Parts for a 2020 Cadillac CT4

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. Every drivetrain part here is 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: Gear Oil and CV Axle .

Frequently Asked Questions

How many drivetrain parts fit the 2020 Cadillac CT4?

Our catalog currently lists 40 drivetrain parts for the 2020 Cadillac CT4 across 22 subcategories and 4 brands, covering both the 2.0L L4 Turbocharged and the 2.7L L4 Turbocharged. Each part is matched to the engine(s) it fits.

Do drivetrain parts differ between 2020 Cadillac CT4 engines?

Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 2020 Cadillac CT4?

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 2020 Cadillac CT4 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 2020 Cadillac CT4?

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 2020 Cadillac CT4

Drivetrain Parts for Other Cadillac CT4 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.