This page lists 24 drivetrain parts for the 2021 Cadillac XT4, across 10 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 2021 Cadillac XT4 moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. The largest groups are CV Axle (10 parts), Differential Carrier (3 parts) and Axle Shaft Seal (2 parts). The other 7 part types cover the remaining 9 parts.
The 2021 Cadillac XT4 came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
5 brands supply drivetrain parts for the 2021 Cadillac XT4, led by GM GENUINE (15 parts), TRAKMOTIVE (4 parts) and GSP (2 parts), plus 2 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Cadillac XT4. 2 parts have it, including GM GENUINE 42905404 (CV Axle) and TRAKMOTIVE GM86013 (CV Axle). Each part number opens a page with every vehicle that part fits.
Axle Intermediate Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 25824167 | 🇺🇸 US 🇨🇦 CA | FrontFWD | View on Amazon |
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.
This group shows a single part: GM GENUINE 25824167.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 291347 | 🇺🇸 US 🇨🇦 CA | Rear4WD | View on Amazon |
| TIMKEN | SL260454 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
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.
2 Axle Shaft Seal parts are listed for the 2021 Cadillac XT4, from GM GENUINE and TIMKEN.
Listed part numbers: GM GENUINE 291347 and TIMKEN SL260454.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular | 42905404 | 🇺🇸 US 🇨🇦 CA | Front Left | View on Amazon |
| TRAKMOTIVE Popular | GM86013 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| GM GENUINE | 42905405 | 🇺🇸 US 🇨🇦 CA | Universal Joints Included: No | View on Amazon |
| GSP | NCV17017 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| GSP | NCV17016 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TOP NOTCH | TN20366 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TOP NOTCH | TN20365 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TRAKMOTIVE | GM8494 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE | GM8493 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
| TRAKMOTIVE | GM86011 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AAR Joint Design | View on Amazon |
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.
10 CV Axle parts are listed for the 2021 Cadillac XT4, from TRAKMOTIVE, GM GENUINE, GSP and 1 other brand. GM GENUINE 42905404 carries the "Popular" badge.
CV Intermediate Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 42819642 | 🇺🇸 US 🇨🇦 CA | FrontFWD | View on Amazon |
This table covers the CV Intermediate shafts.
This group shows a single part: GM GENUINE 42819642.
CV Joint Lock Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 90121202 | 🇺🇸 US 🇨🇦 CA | Front InnerSnap Ring Circlip | View on Amazon |
This table covers the CV Joint Lock rings.
This group shows a single part: GM GENUINE 90121202.
Differential Carrier
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 24063329 | 🇺🇸 US 🇨🇦 CA | Front4WD | View on Amazon |
| GM GENUINE | 24284661 | 🇺🇸 US 🇨🇦 CA | FrontFWD | View on Amazon |
| GM GENUINE | 85755639 | 🇺🇸 US 🇨🇦 CA | 4WDwithout Rear Drive Control Module | View on Amazon |
This table covers the carriers that hold the differential gears in the axle.
GM GENUINE supplies the 3 Differential Carrier parts for the 2021 Cadillac XT4.
This group includes GM GENUINE 24063329, GM GENUINE 24284661 and GM GENUINE 85755639.
Differential Carrier Bearing / Race
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 24237378 | 🇺🇸 US 🇨🇦 CA | Front4WD | View on Amazon |
This table covers the bearings and races that support the differential carrier.
One part is listed for the 2021 Cadillac XT4 — GM GENUINE 24237378.
Differential Carrier Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 11589280 | 🇺🇸 US 🇨🇦 CA | 4WDSINGLE USE | View on Amazon |
This table covers the Differential Carrier bolts.
This group shows a single part: GM GENUINE 11589280.
Differential Carrier Bushing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 84905394 | 🇺🇸 US 🇨🇦 CA | Rear4WD | View on Amazon |
| GM GENUINE | 84929903 | 🇺🇸 US 🇨🇦 CA | 4WDSingle Use | View on Amazon |
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.
GM GENUINE supplies both parts for the 2021 Cadillac XT4.
Listed part numbers: GM GENUINE 84905394 and GM GENUINE 84929903.
Differential Carrier Fluid Baffle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 24298737 | 🇺🇸 US 🇨🇦 CA | Ratio Transaxle Final Drive 3.47,Stop/Start Engine Control System (KL9)Part of Transmission Case | View on Amazon |
| GM GENUINE | 24298738 | 🇺🇸 US 🇨🇦 CA | Ratio Transaxle Final Drive 3.47,Stop/Start Engine Control System (KL9)Plastic | View on Amazon |
This table covers the baffles that control oil in the differential carrier.
GM GENUINE supplies both parts for the 2021 Cadillac XT4.
Part numbers include GM GENUINE 24298737 and GM GENUINE 24298738.
Buying Drivetrain Parts for a 2021 Cadillac XT4
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- 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 Differential Carrier .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Cadillac XT4?
Our catalog currently lists 24 drivetrain parts for the 2021 Cadillac XT4 across 10 subcategories and 5 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2021 Cadillac XT4?
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 Cadillac XT4 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 Cadillac XT4?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. 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 Cadillac XT4
Drivetrain Parts for Other Cadillac XT4 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.