Home
Drivetrain

BMW Drivetrain Parts for BMW X Series E53 (2000-2006)

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:

Pentosin ATF 8 Automatic Transmission Fluid - 1 Liter - BMW 8HP Trans...

T#:45963154

Part#: 1058110

In Stock

$ 26.99

This product was last offered at the strikethrough price on
04-28-2026

$ 25.99 USD

Add to Wish List

Qty

$ 25.99 USD

Add to Wish List

Transmission fluid is responsible for both cooling and lubricating sensitive transmission components. Over time, this fluid becomes contaminated by particulate from clutch and gear components wearing down. This contamination reduces the fluid's ability to act as a lubricant, eventually leading to increased wear and tear within the transmission. To prevent excess wear and keep your transmission in top shape, the fluid and filter should be replaced regularly. As per ZF's recommendations, we suggest performing a full service on your 8HP automatic transmission every 50,000 miles. If your vehicle has been modified to produce more power than stock or if it is regularly track-driven, we recommend shorter 30,000-mile service intervals. This will ensure your transmission's fluid is free from contamination, which will help extend the life of internal transmission components, such as clutch packs and solenoids.

Show More Show Less

JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

T#:3474

Part#: 520-190-240

Ships in 3 Business Days

$ 672.00 USD

Add to Wish List

Qty

$ 672.00 USD

Add to Wish List

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)

Show More Show Less

Pentosin ATF 8 Automatic Transmission Fluid - 5 Liters - BMW 8HP Tran...

T#:45997487

Part#: 1058210

In Stock

$ 113.99

This product was last offered at the strikethrough price on
04-28-2026

$ 109.99 USD

Add to Wish List

Qty

$ 109.99 USD

Add to Wish List

Pentosin Super DOT4 Brake Fluid - 1 Liter

2X Entries For Our G87 M2 Sweepstakes!

T#:348645

Part#: BF1P4

In Stock

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Boiling Point - Dry 265°C (509°F) / Wet >165°C (329°F)

Pentosin ATF 9 Automatic Transmission Fluid - 1 Liter

T#:46134785

Part#: 1058111

Ships on Aug 6, 2026

$ 31.99 USD

Add to Wish List

Qty

$ 31.99 USD

Add to Wish List

Pentosin ATF9 is specially developed with reduced viscosity to optimize the performance of the latest generation 8 and 9-speed ZF automatic transmissions. Pentosin ATF 9 has been developed to deliver outstanding friction control to ensure excellent shifting performance.

Show More Show Less

Pentosin ATF 9 Automatic Transmission Fluid - 5 Liters

T#:46134786

Part#: 1058211

Special Order: No Guaranteed ETA

$ 139.99 USD

Add to Wish List

Qty

$ 139.99 USD

Add to Wish List

Show More Show Less

Select Vehicle

Purpose

Brand

View All Brands

Project Cars

SELECT YOUR BMW

BMW Drivetrain Parts for BMW X Series E53 (2000-2006)

Sub-Categories

Pentosin ATF 8 Automatic Transmission Fluid - 1 Liter - BMW 8HP Trans...

JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

Pentosin ATF 8 Automatic Transmission Fluid - 5 Liters - BMW 8HP Tran...

Pentosin Super DOT4 Brake Fluid - 1 Liter

Pentosin ATF 9 Automatic Transmission Fluid - 1 Liter

Pentosin ATF 9 Automatic Transmission Fluid - 5 Liters

Select Vehicle

Purpose

Category

Brand

Price

Shipping

Narrow Results