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

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:
Z4 M HD Clutch and Flywheel Kit
Z4 M HD Clutch and Flywheel Kit
JB Racing - Corporate Logo
T#:878
Part#: 520-010S-S873G
Ships on Jul 30, 2025
$ 1,488.61 USD
Free Shipping
Add to Wish List
$ 1,488.61 USD
Free Shipping
Add to Wish List
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
Show More Show Less
GSP Rear Axle Assembly - Left - E46, Z4
GSP Rear Axle Assembly - Left - E46, Z4
GSP North America - Corporate Logo
T#:389714
Part#: NCV27500
Back Ordered
$ 171.99 USD
Free Shipping
Add to Wish List
$ 171.99 USD
Free Shipping
Add to Wish List

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

Show More Show Less
GSP Rear Axle Assembly - Right - E46, Z4
GSP Rear Axle Assembly - Right - E46, Z4
GSP North America - Corporate Logo
T#:389701
Part#: NCV27516
Back Ordered
$ 175.99 USD
Free Shipping
Add to Wish List
$ 175.99 USD
Free Shipping
Add to Wish List

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 

Show More Show Less

Select Vehicle

BMW Mini
Clear Vehicle

Purpose

Category

Brand

Price

$
$