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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OEM ZF Automatic Transmission Filter Kit - GA6HP19Z - E82 E90 E92 E93...
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T#:596310
Part#: 24152333907
In Stock
$ 119.99 USD
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$ 119.99 USD
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For GA6HP19Z Automatic Transmissions

Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles.

NOTE: This filter fits GA6HP19Z automatic transmissions. This will NOT fit the GA6L45R transmission. Please check your transmission to ensure it is the correct type.

This kit contains:

(1) Oil Pan with Filter

(1) Oil Pan Gasket

(1) Filter O-Ring

(1) Drain Plug

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ZF Transmission Sealing Sleeve
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T#:376243
Part#: 24347588725
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$ 32.27 USD
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Connects Mechatronik control assembly to transmission
E60, E82, E85, E9X, E89 (N52 Engine) JB Racing Lightweight Aluminum F...
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T#:2801
Part#: 520-200-240
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$ 714.00 USD
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$ 714.00 USD
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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

This JB flywheel replaces the stock flywheel and can be used with either the stock 228mm or stock 240mm clutch discs. Depending on the model you may have either clutch size in your car but this flywheel is compatible with both. You can install a 240mm clutch as a mild upgrade.

Stock Flywheel Weight = 24-31.0lbs
JB Flywheel Weight = 12.0lbs

This item fits the following BMWs:
2006-2010 E60 BMW - 525i, 528i, 530i
2006-2013 E90, E91, E92, E93 BMW - 325i, 328i, 330i
2007-2013 E82 BMW - 125i, 128i
2006-2008 E85, E86 BMW - Z4 3.0i, Z4 3.0si
2009-later E89 BMW - Z4 3.0i
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JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...
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JB Racing - Corporate Logo
T#:3474
Part#: 520-190-240
Ships in 2 Business Days
$ 672.00 USD
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$ 672.00 USD
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This is a performance replacement for BMW Part # 21207533868 Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB Flywheel includes the pilot bearing mounted in the flywheel hub, just like the factory configuration.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.5lbs

This item fits the following BMWs:
2002-2005 E46 BMW 325i 330i (with 6-speed manual transmission)
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ZF Transmission Pan Gasket
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T#:374239
Part#: 24117571235
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$ 41.91 USD
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Seals the transmission and transmission pan
Z4 M HD Clutch and Flywheel Kit
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JB Racing - Corporate Logo
T#:878
Part#: 520-010S-S873G
Ships in 9 Business Days
$ 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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Speed Sensor
For vehicles with an automatic transmission
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T#:591309
Part#: 24341219316
In Stock at Vendor
$ 80.69 USD
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$ 80.69 USD
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ZF Input Shaft Seal - E39, E46, Z4
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T#:374696
Part#: 24201423382
Ships in 1 day
$ 24.99 USD
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Addresses input shaft leaks

ZF Automatic Transmission Oil Pan - E39, E46, Z4
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T#:1196169
Part#: 24117507556
Back Ordered
$ 188.99

This product was last offered at the strikethrough price on
05-07-2026

$ 183.99 USD
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$ 183.99 USD
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Replace your transmission or steering components with proven OE standard products. ZF is a proven quality manufacturer, allowing you to have the confidence of genuine at a more affordable price point.

OEM ZF Automatic Trans Fill Screw Plug With Gasket Ring 24117552349 ...
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T#:362702
Part#: 24117552349
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$ 6.75 USD
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Genuine BMW Screw Plug With Gasket Ring - M18X1,5
 

This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E53 48IS,E38,E39,E46,E53 X5,E63,E65,E70 X5,E71 X6,E82,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36
 

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OEM ZF Automatic Transmission Fluid - 6 speed - M-1375.4 - 1 Liter ...
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T#:12618
Part#: 83220142516
In Stock
$ 25.72

This product was last offered at the strikethrough price on
03-31-2026

$ 17.99 USD
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$ 17.99 USD
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This ZF Lifeguard 6 Automatic Transmission Fluid - ATF - is the equivalent to Shell M-1375.4 for 6 speed automatic transmissions.

This item fits the following BMWs:
2008+ E82 BMW 135i
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2012 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive - Coupe
2007-2012 E93 BMW 328i 335i - Convertible
2004-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive 545i 550i
2004-2010 E63 BMW 645ci 650i
2002-2008 E65 BMW 745i 745li 750i 750li 760i 760li
2007-2010 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive48i X5M
2008+ E71 BMW X6 xDrive35i X6 xDrive50i X6M
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Plastic Sealing Sleeve
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T#:594176
Part#: 24107536341
In Stock
$ 17.08

This product was last offered at the strikethrough price on
04-29-2026

$ 15.59 USD
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$ 15.59 USD
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Replacement Sealing Sleeve from ZF


Sealing Sleeve - Priced Each
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T#:594174
Part#: 24107536339
In Stock
$ 20.49

This product was last offered at the strikethrough price on
04-16-2026

$ 11.99 USD
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$ 11.99 USD
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Replacement Sealing Sleeve from ZF
ZF Transmission Adapter
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T#:376245
Part#: 24347588724
In Stock
$ 21.50

This product was last offered at the strikethrough price on
02-18-2026

$ 16.39 USD
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$ 16.39 USD
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Located between transmission and Mechatronic housing
Lifeguard 8 Automatic Transmission Fluid - 1 Liter - Green
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T#:4717329
Part#: G060162A2
In Stock
$ 22.34

This product was last offered at the strikethrough price on
04-03-2026

$ 18.85 USD
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$ 18.85 USD
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ZF Transmission Pan Bolt - E31, E38, E39, E46, E53, Z4
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T#:402959
Part#: 24101423273
In Stock at Vendor
$ 18.99

This product was last offered at the strikethrough price on
02-10-2026

$ 10.99 USD
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$ 10.99 USD
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Replace your transmission or steering components with proven OE standard products. ZF is a proven quality manufacturer, allowing you to have the confidence of genuine at a more affordable price point.

ZF Transmission Speed Sensor - E39, E46, Z4
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T#:376254
Part#: 24341423874
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$ 146.16 USD
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$ 146.16 USD
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Used to determine the speed of the transmission
Output Shaft Oil Seal
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T#:376257
Part#: 24137509504
Ships in 1 Business Day
$ 10.99 USD
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Transmission Drain Plug
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T#:594141
Part#: 24117507555
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$ 16.99 USD
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Replace the drain plug when servicing your transmission to ensure a leak free finished product.
Automatic Transmission Oil Pan Gasket
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T#:594163
Part#: 24101423380
In Stock at Vendor
$ 29.63

This product was last offered at the strikethrough price on
07-07-2026

$ 29.62 USD
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$ 29.62 USD
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Automatic transmission pan gasket. See us for transmission fluids, filters, gaskets, and transmission service kits.

Solenoid Valve
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T#:594166
Part#: 24341423368
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$ 127.68 USD
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Over time and miles the solenoids that control the transmission fluid flow can become worn out or clogged causing sluggish shifting, or the lose of a gear. By installing a new solenoid you will bring back the smoothness of the shift you have known and also could restore a lost gear.
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Output Shaft Seal
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ZF - Corporate Logo
T#:54744784
Part#: 24207588763
Ships in 1 day
New Item
$ 2.99 USD
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If you notice a puddle of transmission fluid forming underneath your vehicle, the output shaft seal may have failed and is leaking. Stop the leak before it can cause internal transmission damage and replace the output shaft seal in your vehicle today. This seal is on the back of your transmission for the front to rear propeller or driveshaft.
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O-Ring - Automatic Transmission Harness Plug
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T#:594155
Part#: 24341421736
Ships on Jul 27, 2026
$ 6.99 USD
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Automatic Transmission Harness Plug O-Ring from ZF
O-Ring - Priced Each
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ZF - Corporate Logo
T#:594145
Part#: 24311422806
Ships on Jul 27, 2026
$ 7.13 USD
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Located inside the transmission


Automatic Transmission Oil Pan Gasket
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T#:594142
Part#: 24341423376
Ships on Jul 27, 2026
$ 80.99 USD
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Automatic transmission pan gasket. See Turner Motorsport for transmission fluids, filters, gaskets, and transmission service kits.
JB Racing Lightweight Steel Flywheel - Grand-Am Legal - E46, MZ3, Z4 ...
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JB Racing - Corporate Logo
T#:40748575
Part#: 520010240SGA
Ships on Jul 31, 2026
$ 868.00 USD
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This lightened steel flywheel is specifically designed (and approved) for use in Grand-Am road racing but can also be used as a mild street upgrade if a full aluminum lightweight flywheel is not called for. The Grand-Am flywheel is 20% lighter than stock to meet the rules for the GS and ST classes.Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. A lightweight flywheel does away with the dual mass design and its additional mass so more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. The engine revs much faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

Grand-Am approved this flywheel to be used with a factory E36 M3 clutch. This opens up a lot of clutch and pressure plate options but we typically used this with a stock Sachs OEM clutch kit. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches.

Lightweight flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

If being used on a 330i 6-speed or Z4 6-speed an additional pilot bearing hub is required. Select your appropriate model and transmission from the list below.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 20.0lbs

This item fits the following BMWs:
2001-2002 E46 BMW 330i 330ci 5-speed
2003-2006 E46 BMW 330i 330ci 6-speed
2001-2006 E46 BMW M3
1998-2002 Z3 BMW Z3 M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
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ZF Transmission Pan Plug
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T#:362701
Part#: 24117520713
Special Order: No Guaranteed ETA
$ 6.99 USD
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Located in the center of the transmission pan

Neutral Saftey Switch
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T#:594178
Part#: 24107507818
Back Ordered
$ 623.53 USD
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Your BMW is equipped with a safety device that prevents your vehicle from being started in gear. The down side to this is that if your safety switch fails, you may be left without the ability to start the vehicle.
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