2019 Cadillac CT6 Drivetrain Parts

Engine:

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

The 2019 Cadillac CT6 has 59 drivetrain parts with verified fitment on this page — 27 part types and 15 brands, covering all 5 engine options (2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged, 3.0L V6 Turbocharged, 3.6L V6 and 4.2L V8 Turbocharged). Each part includes a manufacturer part number and application notes.

On the 2019 Cadillac CT6, 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 CV Axle (6 parts), Gear Oil (5 parts) and Transfer Case Output Shaft Seal (5 parts). The other 24 part types cover the remaining 43 parts.

Axle Intermediate Shaft Bearing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 85587252
🇺🇸 US 🇨🇦 CA
Front
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This table covers the Axle Intermediate 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 Intermediate Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 23269758
🇺🇸 US 🇨🇦 CA
Front
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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: 3.6L V6 84371225
🇺🇸 US 🇨🇦 CA
Rear
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This table covers the Axle shafts.

Axle Shaft Housing / Tube

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 85596736
🇺🇸 US 🇨🇦 CA
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This table covers the Axle Shaft Housing tubes.

Axle Shaft Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 291352
🇺🇸 US 🇨🇦 CA
Rear
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GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 23269761
🇺🇸 US 🇨🇦 CA
Front
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SKF Fits: 3.6L V6, 4.2L V8 Turbocharged 18563A
🇺🇸 US 🇨🇦 CA
Rear
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WJB / INMOTION PARTS Fits: 3.6L V6, 4.2L V8 Turbocharged WS18563A
🇺🇸 US 🇨🇦 CA
Rear0.453 Width
Fitment notes — WJB / INMOTION PARTS WS18563A
Rear0.453 Width1.870 Shaft Diameter3.248 Bore Diameter3.258 Outside Diameter Seal
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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 Popular Fits: 4.2L V8 Turbocharged, 3.6L V6 84509596
🇺🇸 US 🇨🇦 CA
Front Rightwith RPO Code Abwr, ACS7
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GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 84509595
🇺🇸 US 🇨🇦 CA
Front Leftwith RPO Code Abwp, ACS6
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GM GENUINE Fits: 4.2L V8 Turbocharged 84519468
🇺🇸 US 🇨🇦 CA
Rear Rightwith RPO Code ABVL,ABUX,AARM SINGLE USE
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GSP Fits: 4.2L V8 Turbocharged NCV17026
🇺🇸 US 🇨🇦 CA
Rear Left
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TOP NOTCH Fits: 4.2L V8 Turbocharged TN20392
🇺🇸 US 🇨🇦 CA
Rear Left
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TRAKMOTIVE Fits: 3.6L V6, 4.2L V8 Turbocharged GM86057
🇺🇸 US 🇨🇦 CA
AAR Joint Design
Fitment notes — TRAKMOTIVE GM86057
AAR Joint Design
Front 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: 3.6L V6, 4.2L V8 Turbocharged 23269757
🇺🇸 US 🇨🇦 CA
Front
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This table covers the CV Intermediate shafts.

CV Joint Lock Ring

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 11611639
🇺🇸 US 🇨🇦 CA
RearSingle Use
Fitment notes — GM GENUINE 11611639
RearSingle UseFits 23, 1.8 Thickness
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GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 84210850
🇺🇸 US 🇨🇦 CA
Front Inner
Fitment notes — GM GENUINE 84210850
Front Inner
Front InnerV Model
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GM GENUINE Fits: 4.2L V8 Turbocharged 23417960
🇺🇸 US 🇨🇦 CA
Rear Inner
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This table covers the CV Joint Lock rings.

Differential Bearing Retainer

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 23417954
🇺🇸 US 🇨🇦 CA
V Model
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This table covers the Differential Bearing retainers.

Differential Carrier

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 85596738
🇺🇸 US 🇨🇦 CA
Differential Cover Gasket Included: YES
Fitment notes — GM GENUINE 85596738
Differential Cover Gasket Included: YES
Fits:
Front3.26
or:
Front3.27
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GM GENUINE Fits: 3.6L V6 86827951
🇺🇸 US 🇨🇦 CA
200MM3.27 OPEN
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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: 3.6L V6, 4.2L V8 Turbocharged 11611275
🇺🇸 US 🇨🇦 CA
SINGLE USEM16X2X111,23THD
Fitment notes — GM GENUINE 11611275
SINGLE USEM16X2X111,23THD43.5 OD
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GM GENUINE Fits: 4.2L V8 Turbocharged 11610908
🇺🇸 US 🇨🇦 CA
M12X1.75X70,66THD26.6 OD
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This table covers the Differential Carrier bolts.

Differential Carrier Bushing

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 20762354
🇺🇸 US 🇨🇦 CA
Mounted In Differential Housing
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GM GENUINE Fits: 3.6L V6, 4.2L V8 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 Cover Gasket

Brand Part Number Markets Notes Buy
ELRING Fits: 3.6L V6, 4.2L V8 Turbocharged B18170
🇺🇸 US 🇨🇦 CA
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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 Fill / Drain Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 55573646
🇺🇸 US 🇨🇦 CA
Includes O-Ring
Fitment notes — GM GENUINE 55573646
Includes O-Ring
M20X1.5X1629 ODMagnetZinc CoatedSquare/Ratchet Style
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GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 84479772
🇺🇸 US 🇨🇦 CA
Front DifferentialM22X1.5X12.4 INT Hex
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This table covers the Differential Fill drain plugs.

Differential Pinion Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 86827963
🇺🇸 US 🇨🇦 CA
SINGLE USE
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TIMKEN Fits: 3.6L V6 SL260408
🇺🇸 US
RearRWD
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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 Seal

Brand Part Number Markets Notes Buy
ELRING Fits: 3.6L V6, 4.2L V8 Turbocharged B18200
🇺🇸 US 🇨🇦 CA
Outer Diameter 2 [MM]: 90,3
Fitment notes — ELRING B18200
Outer Diameter 2 [MM]: 90,3
Rear
Fits:
RearBody code: KM69
or:
RearBody code: KN69
or:
RearBody code: KU69
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This table covers the seals at the Differential. 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 Side Cover Seal

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23417962
🇺🇸 US 🇨🇦 CA
SINGLE USE
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This table covers the seals at the Differential Side Cover. 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
DORMAN Fits: 3.6L V6 986537
🇺🇸 US 🇨🇦 CA
Length: 55.52"
Fitment notes — DORMAN 986537
Length: 55.52"
Rear
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GM GENUINE Fits: 3.6L V6 23336889
🇺🇸 US
Front
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GM GENUINE Fits: 3.6L V6 84553705
🇺🇸 US 🇨🇦 CA
Rear
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WJB / INMOTION PARTS Fits: 3.6L V6 WDS86537
🇺🇸 US 🇨🇦 CA
Rear
View on
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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: 3.6L V6, 4.2L V8 Turbocharged 11546698
🇺🇸 US 🇨🇦 CA
Fits FrontM12X1.75X64,62THD
Fitment notes — GM GENUINE 11546698
Fits:
FrontM12X1.75X64,62THD
or:
RearM12X1.75X64,62THD
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GM GENUINE Fits: 3.6L V6, 4.2L V8 Turbocharged 11547241
🇺🇸 US 🇨🇦 CA
FrontAWD
Fitment notes — GM GENUINE 11547241
FrontAWDM10 X 1.5 X 22.5
FrontM10 X 1.5 X 22.5
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This table covers the Drive Shaft bolts.

Drive Shaft Flange Yoke

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23417953
🇺🇸 US 🇨🇦 CA
At Rear Axle
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This table covers the Drive Shaft Flange yokes.

Gear Oil

Brand Part Number Markets Notes Buy
VALVOLINE Popular Fits: 3.6L V6 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 Differential
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ACDELCO Fits: 3.6L V6 104108
🇺🇸 US
1 QuartDexron 75W-90 ACDELCO
Fitment notes — ACDELCO 104108
1 QuartDexron 75W-90 ACDELCO
Fits:
Rear Differential
or:
Front DifferentialAWD
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VALVOLINE Fits: 3.6L V6 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 Differential
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VALVOLINE Fits: 3.6L V6 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 Differential
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VALVOLINE Fits: 3.6L V6 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 Differential
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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: 3.6L V6 104100
🇺🇸 US
Synthetic(TF 0870)33.8 0Z
Fitment notes — ACDELCO 104100
Synthetic(TF 0870)33.8 0Z
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 Input Shaft Seal

Brand Part Number Markets Notes Buy
BCA Fits: 3.6L V6 NS224460
🇺🇸 US 🇨🇦 CA
with Magna 3713G Transfer Casewith Full Time 4WD
Fitment notes — BCA NS224460
with Magna 3713G Transfer Casewith Full Time 4WDwith 1 Speed Transfer Case
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NATIONAL Fits: 3.6L V6 224460
🇺🇸 US 🇨🇦 CA
AWDwith Magna 3713G Transfer Case
Fitment notes — NATIONAL 224460
AWDwith Magna 3713G Transfer Case1 Speed
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SCHAEFFLER Fits: 3.6L V6 SS2772
🇺🇸 US 🇨🇦 CA
AWD2.37" O.D. X 0.39" Width
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WJB / INMOTION PARTS Fits: 3.6L V6 WS224460
🇺🇸 US 🇨🇦 CA
AWDwith Magna 3713G Transfer Case
Fitment notes — WJB / INMOTION PARTS WS224460
AWDwith Magna 3713G Transfer Case1 Speed
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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 Fits: 3.6L V6 600921
🇺🇸 US 🇨🇦 CA
AWD
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GM GENUINE Fits: 3.6L V6 84336363
🇺🇸 US 🇨🇦 CA
AWDMating Connector Use 19369184
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STANDARD MOTOR PRODUCTS Fits: 3.6L V6 TCM184
🇺🇸 US 🇨🇦 CA
View on
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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 Drain Plug

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23247374
🇺🇸 US 🇨🇦 CA
AWD
View on
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This table covers the Transfer Case Oil drain plugs.

Transfer Case Output Shaft Seal

Brand Part Number Markets Notes Buy
NATIONAL Popular Fits: 3.6L V6 710694
🇺🇸 US 🇨🇦 CA
FrontAWD
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BCA Fits: 3.6L V6 NS710694
🇺🇸 US 🇨🇦 CA
Frontwith Magna 3713G Transfer Case
Fitment notes — BCA NS710694
Frontwith Magna 3713G Transfer Casewith Full Time 4WDwith 1 Speed Transfer Case
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GM GENUINE Fits: 3.6L V6 23247372
🇺🇸 US 🇨🇦 CA
Fits FrontAWD
Fitment notes — GM GENUINE 23247372
Fits:
FrontAWD
or:
RearAWD
View on
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SCHAEFFLER Fits: 3.6L V6 SS6390
🇺🇸 US 🇨🇦 CA
Front2.96" O.D. X 0.49" Width
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WJB / INMOTION PARTS Fits: 3.6L V6 WS710694
🇺🇸 US 🇨🇦 CA
FrontAWD
View on
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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 Vent

Brand Part Number Markets Notes Buy
GM GENUINE Fits: 3.6L V6 23247376
🇺🇸 US 🇨🇦 CA
AWD
View on
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This table covers the vents on the transfer case.

Buying Drivetrain Parts for a 2019 Cadillac CT6

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: CV Axle and Gear Oil .

Frequently Asked Questions

How many drivetrain parts fit the 2019 Cadillac CT6?

Our catalog currently lists 59 drivetrain parts for the 2019 Cadillac CT6 across 27 subcategories and 15 brands, covering all 5 engine options (2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged, 3.0L V6 Turbocharged, 3.6L V6 and 4.2L V8 Turbocharged). Each part is matched to the engine(s) it fits.

Do drivetrain parts differ between 2019 Cadillac CT6 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 2019 Cadillac CT6?

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 2019 Cadillac CT6 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 2019 Cadillac CT6?

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 2019 Cadillac CT6

Drivetrain Parts for Other Cadillac CT6 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.