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PRODUCT DESCRIPTION
BMW K-type Differential Bearing Replacement Kit (1999-2006): E46, E39, E38...
Product Description:
Upgrade and ensure the durability of your BMW's differential with RacingDiffs' K-type Differential Bearing Replacement Kit. Specifically designed for BMW models manufactured between 1999 and 2006, this kit meets the specific needs of the K-type differential. This type of differential is commonly found in prominent BMW models such as the E46, E39, and E38, among others. For a complete compatibility list, please 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: Rely on the durability and quality of RacingDiffs components, engineered for optimal fit and function.
Guided Support: Our video gallery includes installation tutorials that ensure a straightforward repair process. Comprehensive Repair Kit: From crush sleeve shims to flange oil seals, our kit guarantees a complete and thorough repair.
How to tell if your differential needs new bearings?
Characteristic differential/drivetrain noise occurs during acceleration and engine braking. To distinguish differential bearing noise from wheel bearing noise, turn the steering wheel left and right as if you were warming up your tires for a race. If the intensity of the noise changes, it's a wheel bearing issue. If the intensity of the noise remains the same, it means your differential bearings need to be replaced.
RacingDiffs components are of OEM quality.
The repair kit includes:
- 1 adjusting washer - 1 small pinion bearing - 1 large pinion bearing - 1 input flange oil seal - 2 output flange oil seals
The K-type differential is found in the 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










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Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
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For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.