Differential Bushings for BMW Z4 M Roadster S54 (2003-2008)

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Differential bushings can completely transform the feel of your BMW, depending on what you go with. While you may want to plan for some additional NVH and gear whine transmitted through your bushings, especially if you go with solid bushings. We offer a wide selection of differential - from solid to polyurethane to stock replacement differential bushings, we have what you need to turn your car into what you desire.
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E46 M3, Z4M Performance Polyurethane Differential Bushing Set ...
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ECS - Corporate Logo
T#:378193
Part#: 002447ECS03KT
In Stock
Sale - Save 25% $ 197.99

This product was last offered at the strikethrough price on
06-13-2026

$ 148.49 USD
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Sale - Save 25%
$ 197.99

This product was last offered at the strikethrough price on
06-13-2026

$ 148.49 USD
Free Shipping

Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

These 88A urethane E46 M3 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included is the front diff mount and two rear mounts in the cover.

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BMW E46 M3 Z4 Performance Polyurethane Differential Bushing Set - Rea...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:348998
Part#: 002447ECS01
In Stock
Sale - Save 25% $ 148.99

This product was last offered at the strikethrough price on
06-13-2026

$ 111.74 USD
Free Shipping
Sale - Save 25%
$ 148.99

This product was last offered at the strikethrough price on
06-13-2026

$ 111.74 USD
Free Shipping

Revitalize your driving experience with ECS Tuning's In-House Engineered Performance Polyurethane Differential Bushings. Say goodbye to soft factory rubber bushings and their deflection. These innovative bushings provide a substantial improvement in the connection between your right foot, the chassis, and the wheels. The outcome is a crisper power transfer from the differential to the wheels, resulting in enhanced throttle control for various driving activities. Notably, these polyurethane bushings achieve these benefits without the harshness or vibration often linked to delrin or solid differential mounts.

Manufactured using a robust 88A durometer polyurethane and a black anodized 6061-T6 aluminum sleeve, these bushings offer superior resistance to chemicals, ozone degradation, road salt, and general wear and tear. This translates to an extended service life.

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Front Differential Mount Bushing - OEM Rubber - E46 M3, Z4 M ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:2215
Part#: 33172282484
In Stock
$ 45.99 USD
Free Shipping on orders $49 and up
When working on the rear subframe, replacement of any rubber bushings and mounts should be performed. This is the front differential mount bushing and it takes the majority of the torquing motion of the diff when under load. The constant twisting will cause this bushing to wear out pretty fast. This is the Original BMW rubber part.

Applications:
2001-2006 E46 M3, M3 CSL coupe and convertible
2007-up Z4 M Roadster, M Coupe

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Genuine BMW Rear Axle Hex Bolt With Washer - M12 1.5x80
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13460
Part#: 33176760337
In Stock
$ 11.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 9.99 USD
Free Shipping on orders $49 and up
$ 9.99 USD
Free Shipping on orders $49 and up
Replace your differential mounting hardware during service to eliminate problems caused by rusted or stripped hardware.