2021 BMW M440I Drivetrain Parts

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. Read more

2 Axle Shaft Seal parts for the 2021 BMW M440I come from TIMKEN.

This group includes TIMKEN SL260162 and TIMKEN SL260496.

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. Read more

5 CV Axle parts for the 2021 BMW M440I come from 3 brands — TOP NOTCH, GSP and TRAKMOTIVE. The "Popular" part is TOP NOTCH TN10075.

This group includes TOP NOTCH TN10075, GSP NCV27108 and GSP NCV27109 and the remaining parts above.

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. Read more

This group shows a single part: GKN 306831.

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. Read more

This group shows a single part: AJUSA 16031150.

This table covers the Differential Fill drain plugs. Read more

2 Differential Fill / Drain Plug parts for the 2021 BMW M440I come from REIN.

Part numbers include REIN HWP0065 and REIN HWU0065.

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. Read more

3 Differential Pinion Seal parts for the 2021 BMW M440I come from 2 brands — TIMKEN and AJUSA.

This group includes AJUSA 12015650, TIMKEN SL260487 and TIMKEN SL260527.

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. Read more

ELRING supplies both parts for the 2021 BMW M440I.

Part numbers include ELRING 761160 and ELRING B16790.

This table covers the driveshafts that carry torque from the transmission or transfer case. Read more

3 Drive Shaft parts are listed for the 2021 BMW M440I, from DORMAN and WJB / INMOTION PARTS.

Listed part numbers: DORMAN 986962, DORMAN 966478 and WJB / INMOTION PARTS WDS86962.

This table covers the flex joints in the driveshaft. Read more

3 Drive Shaft Flex Joint parts for the 2021 BMW M440I come from 2 brands — ÜRO PARTS and AAE.

Listed part numbers: AAE FJC0107, ÜRO PARTS 26111229360 and ÜRO PARTS 26117610061.

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. Read more

2 Gear Oil parts for the 2021 BMW M440I come from VALVOLINE.

Part numbers include VALVOLINE 915052 and VALVOLINE 915053.

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. Read more

This group shows a single part: REIN FLDF005.

This table covers the Transfer Case Oil drain plugs. Read more

2 Transfer Case Oil Drain Plug parts for the 2021 BMW M440I come from REIN.

This group includes REIN HWP0065 and REIN HWU0065.