BMW Drivetrain Parts for BMW Z Series E85/6 (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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DKM Stage 1 Single-Mass Flywheel and Performance Clutch Kit - E34 E36...
For vehicles with production date up to 10/2003 Not for SMG Transmission Cars!
DKM - Corporate Logo
T#:393279
Part#: MA-006-005
Ships on Nov 17, 2026
$ 749.99 USD
Free Shipping
$ 749.99 USD
Free Shipping

Looking to upgrade your stock clutch to something a little more beefy?  The performance clutch kits from DKM are a great option to help get power to the wheels without breaking the bank. Working with Competition Clutch, DKM clutch discs and plates are constructed using quality materials to obtain greater strength and heat tolerance than OE clutches, helping to prevent wear and tear while still giving you increased toque capacity for quicker shifts and more power management.

Stage 1 Kits are best for moderately modified vehicles that want to add a single mass flywheel for quicker revs and a sportier engagement, without adversely affecting the clutch pedal's feel. *This is a 10 Spline clutch kit.*

This Stage 1 performance clutch kit includes the following items:

  • Pressure Plate
  • Sprung Organic Disc
  • Iron Single Mass Flywheel
  • Pilot Bearing/Bushing and Throw-out Bearing
  • Alignment Tool

     

**For vehicles with 5-speed transmission only.

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Powerflex Black Series - Corporate Logo
T#:33879985
Part#: PFF5-4632BLK
Back Ordered
$ 55.99 USD
Free Shipping on orders $49 and up

The Powerflex Black Series Shifter Arm Rear Bushing for BMW 3 Series, 5 Series, and Z Series is a high-performance upgrade, engineered for those seeking superior precision and durability in their vehicle’s shifting mechanism. Part of the Powerflex Black Series, this bushing is designed specifically for track and high-performance use, delivering exceptional stability under extreme conditions.

Features & Benefits:

  • Fitment: Designed to fit BMW 3 Series, 5 Series, and Z Series models, ensuring a direct replacement for the stock shifter arm rear bushing.
  • Material: Made from race-proven, stiff polyurethane, offering superior resistance to deformation compared to OEM rubber bushings.
  • Color: Black, as part of the Black Series, which is focused on maximum performance and durability.
  • Improved Shifting Precision: Drastically reduces play and unwanted movement in the rear shifter arm, resulting in crisper and more precise gear changes.
  • Durability: Engineered to withstand high levels of stress, heat, oil, and debris, ensuring long-lasting reliability and performance even in the most extreme driving conditions.
  • Ideal for Motorsport: Designed with motorsport and track enthusiasts in mind, offering the stiffest bushing option in the Powerflex lineup for optimal control.

This rear shifter arm bushing upgrade is perfect for drivers who want the best in control, performance, and long-term durability, making it an essential component for serious driving and racing applications.

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Powerflex Black Series - Corporate Logo
T#:362719
Part#: PFR5-4621B
Back Ordered
$ 42.99 USD
Free Shipping on orders $49 and up

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
2001 - 2006 E46 M3

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Stage 2 Performance Clutch Kit - With Single Mass Flywheel
For vehicles with production date up to 10/2003 Not for SMG Transmission Cars!
DKM - Corporate Logo
T#:17970622
Part#: MB-006-005
In Stock
$ 999.99 USD
$ 999.99 USD
Working in collaboration with Competition Clutch, the up-and-coming German automotive performance company DKM has released a new line of high quality clutches made to satisfy your stock and modified performance needs! If you're having problems keeping power to the wheels, DKM has the solution. Their design, using high-grade materials, gives you increased strength and heat tolerance preventing wear and fade, ensuring increased torque capacity, quicker shifts, and a longer clutch life. For aggressive street use and moderate track use, the MB Clutch Kit is a performance clutch kit that upgrades you to a single Single Mass Flywheel and provides up to 80% increase in torque capacity over the MA series clutch kits. Allowing for quicker revs, this Kit will give your car a little pep while retaining factory-like pedal feel. Kit Contents: Pressure Plate Sprung Organic Disc Iron Single Mass Flywheel Pilot Bearing/Bushing and Throw-out Bearing (when applicable) Alignment Tool For vehicles with 5-speed transmission only. Select your vehicle for additional fitment information. **Due to the nature of lightened single-mass flywheels added "NVH" or "chatter" will or may occur during operation. Accompanying modifications can also increase the amount of "NVH" or "chatter" in the drivetrain. Please contact our sales team with any questions.**
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GSP North America - Corporate Logo
T#:389683
Part#: 274125
Ships in 2 Business Days
$ 72.99 USD
Free Shipping on orders $49 and up

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: 

1992-1998 E36 BMW 318i 318ic 318is 318ti 323is 323ic 325i 325ic 325is 328i 328ic 328is M3 M3 Convertible 
1999-2005 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci 
3/1991-1995 E34 BMW 525i 530i 535i 540i 
11/1991-1994 E32 BMW 735i 735il 740o 740il 750il 
3/1992-1999 E31 BMW 840ci 850ci 850csi 
1996-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe

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GSP North America - Corporate Logo
T#:389701
Part#: NCV27516
Ships in 2 Business Days
$ 183.99 USD
Free Shipping
$ 183.99 USD
Free Shipping

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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Powerflex Black Series - Corporate Logo
T#:379936
Part#: PFR5-4626B
Ships in 1 Business Day
$ 62.99 USD
Free Shipping
$ 62.99 USD
Free Shipping

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

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Powerflex Black Series - Corporate Logo
T#:379935
Part#: PFR5-4625BX2
Ships in 1 Business Day
$ 107.99 USD
Free Shipping
$ 107.99 USD
Free Shipping

Differential bushings are responsible for keeping the differential in solid alignment while dampening drivetrain vibration. While OE rubber bushings are fine when they are new from the factory, aged and worn out rubber bushings create a multitude of issues that can range from annoying to dangerous. As a factory bushing ages, it begins to harden and become brittle. When this happens the bushing will actually shrink and allow for movement at the differential mounting point. At this point, the differential is free to shift under load causing a noticeable clunking noise under acceleration and deceleration and massively increasing the stress on the driveshaft and axles. Manual transmissions suffer the worst from this as it can make shifting difficult since the differential will shift when the clutch is engaged and disengaged.

By replacing these bushings with full polyurethane, the movement is eliminated since the mounting point is supported by a much stiffer material that will not harden or shrink over time. This means less stress on the driveshaft and axles and greater longevity of supporting components. 

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved acceleration response, more direct shifting feel and overall improved drivetrain composure with Powerflex performance polyurethane bushings.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

Show More Show Less

GSP North America - Corporate Logo
T#:389714
Part#: NCV27500
Ships in 2 Business Days
$ 178.99 USD
Free Shipping
$ 178.99 USD
Free Shipping

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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Valeo - Corporate Logo
T#:383915
Part#: 835115
Ships in 1 Business Day
$ 1,388.30 USD
Free Shipping
$ 1,388.30 USD
Free Shipping

This kit from Valeo is a simple way to easily convert your stock dual mass flywheel clutch system to a single mass system.

Dual mass flywheels allow for fluid-feeling clutch engagements and offer a more luxurious feel than single-mass flywheels. However, with these benefits come significant drawbacks. Why convert from a dual-mass flywheel to a single-mass flywheel?

Cost: Dual-mass flywheels are expensive, with the cost of replacement often times being double or triple than that of converting to a single-mass flywheel.
Serviceability: Single-mass flywheels can be resurfaced, eliminating the need to replace with the next clutch service. - something that is not recommended with dual-mass flywheels, as they contain a rubber section that is more failure-prone in high mileage application.
Simplicity: Single-mass flywheels lack the complexity of dual-mass flywheels, making them inherently more reliable. Dual-mass flywheels contain a rubber damper or hub that will, like all rubber components, wear out with time.
Pedal Feel: Many enthusiasts prefer to eliminate BMW's "Self Adjusting Clutch", which has been known to provide an unpredictable, inconsistent engagement point.
Driveability: Valeo's conversion kit has been designed to maintain nearly identical clutch and flywheel weight, ideal for keeping the clutch quiet and easy to drive.
Kit contents:

Single-mass flywheel
Non-Self Adjusting Clutch and pressure plate
Throw out bearing
Pressure plate bolts
Flywheel bolts
Clutch alignment tool

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DKM - Corporate Logo
T#:24610569
Part#: MRX-006-005
Special Order: No Guaranteed ETA
$ 1,799.99 USD
Free Shipping on orders $49 and up
Rated for upwards of 850 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 215mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 215mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1
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GSP North America - Corporate Logo
T#:389674
Part#: 274254
Ships in 2 Business Days
$ 184.99 USD
Free Shipping
$ 184.99 USD
Free Shipping

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: 

2008+ E82 BMW 128i 135i 135is 
2006-2011 E90 BMW 325i 328i 330i 335d 335i - Sedan 
2006-2012 E91 BMW 328i - Wagon 
2007-2013 E92 BMW 328i 335i 335is - Coupe 
2007-2013 E93 BMW 328i 335i M3 - Convertible 
2013+ E84 BMW X1 sDrive28i 
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is 

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DKM - Corporate Logo
T#:24610565
Part#: MR-006-054
Special Order: No Guaranteed ETA
$ 1,699.99 USD
Free Shipping on orders $49 and up
Rated for upwards of 650 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 184mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 184mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1
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