BMW Drivetrain Parts for BMW Z4 M Roadster S54 (2003-2008)

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Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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Genuine BMW - Corporate Logo
T#:55245795
Part#: 2511143XKT
In Stock
New Item
$ 13.04 USD
Free Shipping on orders $49 and up
Tighten up your track day or spirited street shifts with this Genuine BMW Selector Rod refresh kit.
Genuine BMW - Corporate Logo
T#:55209907
Part#: 25111KT
In Stock
New Item
$ 8.91 USD
Free Shipping on orders $49 and up
This kit ensures your shift linkage stays safely secured and firmly engaged through every hard shift.
Genuine BMW - Corporate Logo
T#:55245852
Part#: 2331XXKT
In Stock
New Item
$ 17.52 USD
Free Shipping on orders $49 and up
This Genuine BMW Compression Spring Kit replaces the weak factory shift springs that control the mechanical resistance and centering of your shift lever.

Genuine BMW - Corporate Logo
T#:55209911
Part#: 2511122KT
Ships in 3 Business Days
New Item
$ 5.27 USD
Free Shipping on orders $49 and up
This Genuine BMW Manual Shift Selector Rod Hardware Kit includes the exact factory-spec shims and securing clips needed to safely lock down your shift linkage.

Rear Output Shaft Kit
03-08 Model Years
Genuine BMW - Corporate Logo
T#:55102439
Part#: 33217839465/6KT
Ships in 3 Business Days
New Item
$ 1,974.99 USD
$ 1,974.99 USD
Over time, factory output shafts wear down, leading to unwanted play, vibrations, and a sloppy power delivery that ruins an otherwise perfect drive.
Genuine BMW - Corporate Logo
T#:55317663
Part#: 2331MTKT
Ships on Aug 7, 2026
New Item
$ 66.67 USD
Free Shipping on orders $49 and up
If your BMW’s manual shifter feels loose or struggles to cleanly find its gates, it’s time to rebuild your transmission shift detents.

Meyle - Corporate Logo
T#:55461366
Part#: 1003250005
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
$ 19.99 USD
This MEYLE automatic transmission filter screens out those harmful contaminants before they can reach critical hydraulic valves.
Meyle - Corporate Logo
T#:55569543
Part#: 0140193200
Special Order: No Guaranteed ETA
New Item
$ 24.99 USD
$ 24.99 USD
Don't let fluid breakdown slow down your shifts or trigger performance-robbing transmission slip when you're pushing your car to the limit. This Meyle ATF Plus 9 high-performance transmission fluid is engineered to withstand the extreme thermal loads and intense shear stress generated during aggressive street driving and high-RPM track sessions. Its advanced synthetic formula provides a robust lubricating film that limits friction within the gearsets and maintains crisp clutch engagement, ensuring your multi-speed automatic handles rapid downshifts and hard acceleration flawlessly.
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