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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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Fly Wheel Turner

T#:1809145

Part#: W80510

Ships in 1 Business Day

$ 32.44 USD

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$ 32.44 USD

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For turning and holding flexplates and flywheels.

Z4 M HD Clutch and Flywheel Kit

T#:878

Part#: 520-010S-S873G

Ships on Jul 29, 2025

$ 1,488.61 USD

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$ 1,488.61 USD

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This lightweight aluminum flywheel w/ Heavy Duty "sprung-hub" clutch package is the best-engineered solution for E46 325 and 330 models with the 6-speed transmission, Z4 2.5/3.0, and Z4 M Roadster and M Coupe. Instead of picking a clutch from another car that may or may not work at all, the engineers at JB Racing have taken all of the guess work out of this upgrade and incorporated a Sachs sport sprung-hub clutch with the correct pressure plate and combined it with their most-popular aluminum lightweight flywheel. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch. Mixing and matching of the incorrect clutch, pressure plate, and flywheel components can lead to inconsistent engagement and feel -- why make your clutch feel worse?

In addition, the Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit. And with the aluminum flywheel weight savings is substantial over the stock dual-mass flywheel - which allows your motor to spool up faster and transmit more HP to the ground.

Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price).

Z4 M Sport Clutch and Flywheel Applications:
2006-2008 E85 Z4, E86 Z4 Z4 M Roadster, Z4 M Coupe

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GSP Rear Axle Assembly - Left - E46, Z4

T#:389714

Part#: NCV27500

Back Ordered

$ 171.99 USD

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$ 171.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW M3

E85 BMW Z4M

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GSP Rear Axle Assembly - Right - E46, Z4

T#:389701

Part#: NCV27516

Back Ordered

$ 175.99 USD

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$ 175.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW M3

E85 BMW Z4M

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Fluid Transfer Pump

T#:1809158

Part#: W1141

In Stock

$ 9.99 USD

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$ 9.99 USD

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Fits all standard gallon bottles

CV Joint Boot Clamp Band Tool

T#:5122269

Part#: W83011

Ships in 1 Business Day

$ 23.31 USD

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$ 23.31 USD

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Helpful tool for proper axle boot installations.

Multi Use Transfer Pump

T#:1809134

Part#: W1145

Ships in 1 Business Day

$ 18.80 USD

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$ 18.80 USD

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Quickly and easily transfer any fluid.

Quart & Gallon Fluid Pump

T#:5095675

Part#: W1139

Ships in 2 Business Days

$ 10.99 USD

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$ 10.99 USD

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Unique double threaded cap fits both quart and gallon size containers.

Ear-Type Clamp Pliers

T#:1855988

Part#: W83013

Ships Jul 7, 2025

$ 20.40 USD

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$ 20.40 USD

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Used on ear-type clamps found on CV joints, hoses, and some fuel filters.

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