30 Drivetrain parts are listed for the 2021 BMW X7, in 14 part types, covering both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 BMW X7, 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 (4 parts), Drive Shaft (4 parts) and Differential Pinion Seal (3 parts). The other 11 part types cover the remaining 19 parts.
The 2021 BMW X7 was sold with both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. 21 parts fit every engine; the other 9 are engine-specific. Each part shows which engine(s) it fits.
12 brands supply drivetrain parts for the 2021 BMW X7, led by REIN (7 parts), TIMKEN (4 parts) and ELRING (4 parts), plus 9 more brands.
Each part number listed for the 2021 BMW X7 opens a page with every vehicle that part fits.
Axle Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2021 X7 engines | HWB1067 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Frontwith Spring, 16x1.5x72mm | View on Amazon |
This table covers the Axle bolts.
One part is listed for the 2021 BMW X7 — REIN HWB1067.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: all 2021 X7 engines | SL260162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| TIMKEN Fits: all 2021 X7 engines | SL260496 | 🇺🇸 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.
TIMKEN supplies both parts for the 2021 BMW X7. All of them fit every engine offered in the 2021 X7.
This group includes TIMKEN SL260162 and TIMKEN SL260496.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Fits: 3.0L L6 Turbocharged | NCV27116 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| GSP Fits: all 2021 X7 engines | NCV27117 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TOP NOTCH Fits: 3.0L L6 Turbocharged | TN10079 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Right | View on Amazon |
| TOP NOTCH Fits: all 2021 X7 engines | TN10080 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | 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.
4 CV Axle parts are listed for the 2021 BMW X7, from GSP and TOP NOTCH. 2 parts fit every engine; the other 2 are engine-specific.
Part numbers include GSP NCV27116, GSP NCV27117 and TOP NOTCH TN10079, among others listed above.
Differential Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: all 2021 X7 engines | 16031150 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | FrontCover O-Ring | View on Amazon |
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.
One part is listed for the 2021 BMW X7 — AJUSA 16031150.
Differential Fill / Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2021 X7 engines | HWP0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear DifferentialM22X1.5, Steel | View on Amazon |
| REIN Fits: all 2021 X7 engines | HWU0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear DifferentialM22X1.5, Aluminum | View on Amazon |
This table covers the Differential Fill drain plugs.
REIN supplies both parts for the 2021 BMW X7. All of them fit every engine offered in the 2021 X7.
Part numbers include REIN HWP0065 and REIN HWU0065.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: all 2021 X7 engines | 12015650 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front44x69x10/15mm | View on Amazon |
| TIMKEN Fits: all 2021 X7 engines | SL260487 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| TIMKEN Fits: all 2021 X7 engines | SL260527 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
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.
3 Differential Pinion Seal parts are listed for the 2021 BMW X7, from TIMKEN and AJUSA. All of them fit every engine offered in the 2021 X7.
Part numbers include AJUSA 12015650, TIMKEN SL260487 and TIMKEN SL260527.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2021 X7 engines | 729370 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Height [MM]: 10Swirl Type: Right-hand Twist | View on Amazon |
| ELRING Fits: all 2021 X7 engines | 761160 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material: ACM (Polyacrylate)Radial Shaft Seal Design: AS | View on Amazon |
| ELRING Fits: all 2021 X7 engines | B16790 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Material: AEM (Ethylene Acrylate Rubber)Swirl Type: Alternating Twist | View on Amazon |
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.
3 Differential Seal parts for the 2021 BMW X7 come from ELRING. Every part fits both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged.
Part numbers include ELRING 729370, ELRING 761160 and ELRING B16790.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.4L V8 Turbocharged | 966569 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 60.625"OE Fix | View on Amazon |
| VAICO Fits: 3.0L L6 Turbocharged | V204444 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Description: Front Axle | View on Amazon |
| VAICO Fits: 3.0L L6 Turbocharged | V204437 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Towing PackageRear Left | View on Amazon |
| VAICO Fits: 3.0L L6 Turbocharged | V204438 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Towing PackageRear Right | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
4 Drive Shaft parts for the 2021 BMW X7 come from 2 brands — VAICO and DORMAN.
Listed part numbers: DORMAN 966569, VAICO V204444 and VAICO V204437, plus the other parts above.
Drive Shaft Center Support Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2021 X7 engines | BEM0039P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 55mm O.D., 30mm I.D. | View on Amazon |
This table covers the Drive Shaft Center Support 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.
This group shows a single part: REIN BEM0039P.
Drive Shaft Flex Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AAE Fits: 3.0L L6 Turbocharged | FJC0107 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKF Fits: 3.0L L6 Turbocharged | VKJF98003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear Driveshaft at Transfer CaseFlex Coupler | View on Amazon |
| ÜRO PARTS Fits: 4.4L V8 Turbocharged | 26117610061 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the flex joints in the driveshaft.
3 Drive Shaft Flex Joint parts are listed for the 2021 BMW X7, from AAE, SKF and ÜRO PARTS.
Part numbers include AAE FJC0107, SKF VKJF98003 and ÜRO PARTS 26117610061.
Drive Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: all 2021 X7 engines | B15590 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Flange Seal | View on Amazon |
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.
One part is listed for the 2021 BMW X7 — ELRING B15590.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2021 X7 engines | 915052 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-85 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2021 X7 engines | 915053 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-85 Gear Oil1 Quart Flex Fill | View on Amazon |
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.
VALVOLINE supplies both parts for the 2021 BMW X7. All of them fit every engine offered in the 2021 X7.
This group includes VALVOLINE 915052 and VALVOLINE 915053.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2021 X7 engines | FLDF005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | TF08701 Liter | View on Amazon |
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.
One part is listed for the 2021 BMW X7 — REIN FLDF005.
Transfer Case Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: all 2021 X7 engines | HWP0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | M22x1.5, Steel | View on Amazon |
| REIN Fits: all 2021 X7 engines | HWU0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | M22x1.5, Aluminum | View on Amazon |
This table covers the Transfer Case Oil drain plugs.
REIN supplies both parts for the 2021 BMW X7. All of them fit every engine offered in the 2021 X7.
This group includes REIN HWP0065 and REIN HWU0065.
Buying Drivetrain Parts for a 2021 BMW X7
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: CV Axle and Drive Shaft .
Frequently Asked Questions
How many drivetrain parts fit the 2021 BMW X7?
Our catalog currently lists 30 drivetrain parts for the 2021 BMW X7 across 14 subcategories and 12 brands, covering both the 3.0L L6 Turbocharged and the 4.4L V8 Turbocharged. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2021 BMW X7 engines?
Some do. 21 parts fit every engine; the other 9 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 BMW X7?
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 BMW X7 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 BMW X7?
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 BMW X7
Drivetrain Parts for Other BMW X7 Years
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