This page lists 8 drivetrain parts for the 2020 BMW M4, across 5 part types, covering the 3.0L L6 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2020 BMW M4, 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 (2 parts), Differential Fill / Drain Plug (2 parts) and Drive Shaft (2 parts). The other 2 part types cover the remaining 2 parts.
Every part on this page is matched to the 3.0L L6 Turbocharged — the only engine offered in the 2020 BMW M4.
The most listed brands for 2020 BMW M4 drivetrain parts are REIN (3 parts), GKN (2 parts) and ELRING (1 part), plus 2 more brands.
Each part number listed for the 2020 BMW M4 opens a page with every vehicle that part fits.
CV Axle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | 305980 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear RightLength 834 mm | View on Amazon |
| GKN | 305979 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear LeftLength 758 mm | 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.
2 CV Axle parts for the 2020 BMW M4 come from GKN.
This group includes GKN 305980 and GKN 305979.
Differential Fill / Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | HWP0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear DifferentialM22X1.5, Steel | View on Amazon |
| REIN | HWU0065 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear DifferentialM22X1.5, Aluminum | View on Amazon |
This table covers the Differential Fill drain plugs.
2 Differential Fill / Drain Plug parts for the 2020 BMW M4 come from REIN.
Listed part numbers: REIN HWP0065 and REIN HWU0065.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 703190 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Height [MM]: 9Material: FPM (fluoride rubber) | 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.
One part is listed for the 2020 BMW M4 — ELRING 703190.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 966409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 56.125" | View on Amazon |
| WJB / INMOTION PARTS | WDS66409 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
2 Drive Shaft parts are listed for the 2020 BMW M4, from DORMAN and WJB / INMOTION PARTS.
Listed part numbers: DORMAN 966409 and WJB / INMOTION PARTS WDS66409.
Drive Shaft Center Support Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | AVS0316P | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
One part is listed for the 2020 BMW M4 — REIN AVS0316P.
Buying Drivetrain Parts for a 2020 BMW M4
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 3.0L L6 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 Fill / Drain Plug .
Frequently Asked Questions
How many drivetrain parts fit the 2020 BMW M4?
Our catalog currently lists 8 drivetrain parts for the 2020 BMW M4 across 5 subcategories and 5 brands, covering the 3.0L L6 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2020 BMW M4?
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 BMW M4 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 BMW M4?
Every part on this page is matched to the 3.0L L6 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 2020 BMW M4
Drivetrain Parts for Other BMW M4 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.