BMW Differential bearing set Type K (E46, E39, E53)


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BMW K Type Differential Bearing Replacement Kit (1999-2006): E46, E39, E38...


Product Description:

Upgrade and ensure the longevity of your BMW's differential with RacingDiffs' K Type Differential Bearing Replacement Kit. Specifically designed for BMW models produced from 1999 to 2006, this kit is tailored to meet the unique needs of the K differential type. This differential type is prominently found in notable BMW models such as the E46, E39, and E38, to name a few. For complete fitment list, scroll to the bottom of the page. 

Key Features:

  • Bearing Identification: Designed for 6-cylinder (188K) and 8-cylinder (215/220K) BMW models.
  • OEM Quality Components: Trust in the durability and quality of RacingDiffs components, tailored for optimal fit and function.
  • Guided Support: Our video gallery is brimming with installation tutorials, ensuring a hassle-free repair process.
  • Comprehensive Repair Kit: From crush sleeve shims to flange oil seals, our kit ensures a complete and thorough repair.


To be 100% sure which option to order, please check this video instruction how to check using your VIN. It will show you how to use

How to tell if your differential needs bearings replacement?

Characteristic noise from differential/transmission occurs during acceleration and coast (engine breaking). To distinguish differential bearing noise from the wheel bearing noise steer left-right like you are warming up tires for the race.
If the noise changes its intensity than it is a wheel bearing. If intensity of the noise remains the same, that means differential bearings needs to be replaced.

RacingDiffs Components are OEM quality.

Repair kit includes:

-1x Crush sleeve shim
-1x Small pinion bearing
-1x Large pinion bearing
-1x Input flange oil seal
-2x Output flange oil seal

K type differential type was found in following BMW models:

- 3 series: E46
- 5 series: E39
- 7 series: E38 (late models), E65, E66, E67
- X3 series: E83
- X5 series: E53
- Z series: E85, E86

Check out our installation tutorials for help and guidance at any time in our video gallery.