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Genuine European BMW BMW Transmission Parts

Looking for parts for your BMW automatic transmission or manual transmission? You'll find many of the parts available to service your BMW's transmission here. While internal transmission servicing and rebuilding should be done by professionals, there are a lot of things on the outside of the transmission that you can service or replace yourself. These include gearbox seals, o-rings, gaskets, automatic transmission filters, backup light switches, mounting bolts, flanges, collar nuts, screw plugs, Mechatronics, and more.

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Genuine BMW CSL SMG Expansion Tank - E46 M3

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:383934

Part#: 21532282549

In Stock

$ 224.99 USD

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$ 224.99 USD

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This is required when installing a CSL airbox on an M3 with an SMG transmission. The expansion tank holds the hydraulic fluid for the SMG clutch cylinder.

Genuine BMW CSL SMG Expansion Tank Bracket - 41147896136 - E46 M3 CSL...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:361538

Part#: 41147896136

In Stock

Sale - Save 39% $ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 18.29 USD

Add to Wish List

Qty

Sale - Save 39%

$ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 18.29 USD

Add to Wish List

When you upgrade to the CSL intake, you have to replace and relocate the SMG reservoir. This bracket mount the new reservoir after the CSL conversion exactly as designed by BMW.

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Genuine European BMW BMW Transmission Parts

Genuine BMW CSL SMG Expansion Tank - E46 M3

Genuine BMW CSL SMG Expansion Tank Bracket - 41147896136 - E46 M3 CSL...

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