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BMW Drivetrain Parts for BMW 5 Series E39 (1996-2003)

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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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Rogue Engineering Transmission Mounts - Pair - Multiple BMWs ...

T#:641617

Part#: TM

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$ 69.00 USD

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Unlike other aftermarket mounts, the mounting plate and studs of our mounts have been Zinc-plated to prevent corrosion. Rogue Engineering Transmission Mounts are sold as a pair, and come with Grade 8 Zinc plated hardware. Rogue Engineering transmission mounts are designed with street comfort in mind while still reducing left and right movement of the transmission. By using a cylindrical shape instead of the factory hourglass like design and utilizing Neoprene rubber deflection can be significantly reduced, minimizing unwanted transmission movement while maintaining vibration dampening characteristics.

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BMW Clutch Stop - Bavarian Autosport

T#:1777897

Part#: B2300001KT

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$ 21.59 USD

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BMW Clutch Stop

Improve your shifting experience with the BMW Clutch Stop. This adjustable clutch stop is designed to install beneath the clutch pedal, allowing you to set the precise stopping point just after the clutch disengages. Once adjusted, you can achieve consistent, smooth, and efficient shifts every time, saving valuable time and effort.

Benefits:

Enhances shifting precision and consistency
Saves time with smooth and fast shifts
Adjustable design allows for personalized settings

Upgrade your BMW's shifting performance with the BMW Clutch Stop for a more enjoyable driving experience.

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ZF 320z S5D 5-Speed Manual Transmission Detent Tool Kit

T#:23416568

Part#: RGZFDETENT

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$ 127.99 USD

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Required drift/punch set for replacing ZF S5D 320z detent pins and springs, a common cause of the infamous "5th gear lean" among other shifter-related issues.

Bav Auto Universal Flex Disc - Multiple BMW Applications

For all vehicles with automatic transmission. Also for touring models with manual trans...

T#:639802

Part#: 26117511454

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$ 42.49 USD

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This replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it produces a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Valeo Single Mass Clutch Kit - E46 325xi (Thru 08/03), 330i 5 speed (...

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T#:3578

Part#: 21207531843

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$ 896.33 USD

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Single mass flywheels can be resurfaced while it is recommended that dual mass flywheels are not.
Dual mass flywheels contain a rubber damper that will wear out, single mass flywheels do not have this and are inherently easier to maintain
Single mass flywheels also provide more consistent clutch feel when compared to the dual mass "self-adjusting" clutch that is notorious for inconsistency.
Valeo's single mass flywheel conversion is designed to be a similar weight and mass to OEM, making it an ideal choice for a daily driver

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Valeo Single Mass Flywheel Conversion Kit - E36, E39, Z3

For vehicles with production date up to 09/1997

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T#:377152

Part#: 52401210

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$ 969.21 USD

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Upgrade from your failure prone dual mass flywheel with this kit. Includes single mass flywheel, clutch kit and hardware.

E46 M3, E9X M3, E34 M5, E39 M5, Z4 M OS Giken Super Lock Limited Slip...

T#:1387

Part#: BM237-HA

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$ 1,950.00 USD

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$ 1,950.00 USD

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The M Dynamic limited slip unit on the M3 is designed to be a pure street car differential. It's simply not up to the rigors of professional or amateur racing. The OS Giken Super Lock LSD is giant step up in from a stock M3 lsd unit. It's ready for the extreme conditions of racing, offers 100% progressive locking capability, and is able to do this while operating smoothly and quietly. It's use of advanced technologies that make it perfect for both street cars AND pro race cars... and everything in between. We're excited to be carrying the OS Giken LSD unit in our performance catalog, as we've been using them in our own Championship winning M3 race cars.

OS Giken incorporated revolutionary new ideas when developing the their own limited slip diff, utilizing their accumulated racing knowledge and experience and over 4 years of development. Their design uses an unprecedented number of friction plates (up to 28 total!) for better locking force, better engagement/disengagement, and less generated heat. The end result of their efforts is the OS Giken's OS Super Lock LSD which offers incredible durability and reliability on street and track driven BMWs. The use of highest quality materials, precise machining, forged gears and sound engineering makes this LSD durable and reliable enough for road racing performance (which we can personally vouch for!). This is such a great design, in that it can be used in any situation -- whether it's for a street car, or a 100% Professional race car. Zero break-in required. Super smooth and quiet engagement, and 100% progressive locking capability. Professional installation is recommended.

This Limited Slip Differential Unit fits the following BMWs:
2001-2006 E46 M3 coupe & convertible
2008-2013 E9X M3 coupe & convertible
1991-1995 E34 M5 sedan
1999-2003 E39 M5 sedan
2006-2008 E85 Z4M Z4 M Coupe, Z4 M Roadster

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Differential And LSD Tune

T#:34382136

Part#: BM237HAKT

Ships in 2 Business Days

$ 2,100.00 USD

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$ 2,100.00 USD

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Upgrade to a better performing LSD, includes tune.

Valeo Single Mass Flywheel Conversion Kit - E39 E46 Z3 M52 2.5L ...

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T#:380538

Part#: 52401225

Ships on Sep 4, 2026

$ 1,016.99 USD

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$ 1,016.99 USD

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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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Valeo Replacement Clutch Kit for Valeo Single Mass Conversion - E36, ...

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T#:580071

Part#: 828093

Ships on Sep 4, 2026

$ 606.99 USD

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$ 606.99 USD

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Replacement clutch kit from Valeo for the single mass flywheel conversion kit (ES2702806)

Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...

For vehicles with A5S325Z transmission only, from 03/2001 production date

T#:639803

Part#: 24341423376

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Sale - Save 20% $ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD

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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Valeo Clutch Kit - E39, E46, Z3

For vehicles with production date from 09/1997

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T#:378253

Part#: 52401223

Ships in 5 Business Days

$ 526.99 USD

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$ 526.99 USD

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Includes pressure plate, throw out bearing, and friction disc

M18 Automatic Transmission Fill Plug - BMW

For vehicles with production date from 03/2001

T#:22690760

Part#: 24117552349

In Stock

Sale - Save 11% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 7.99 USD

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$ 7.99 USD

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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.

LSD Tune For OS Giken Differential

T#:34382134

Part#: LSD-TUNE

Ships in 2 Business Days

$ 150.00 USD

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$ 150.00 USD

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Transmission Filter

5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:38587682

Part#: 24111218899

Ships in 7 Business Days

$ 25.99 USD

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$ 25.99 USD

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Throughout a vehicle’s lifespan, transmission maintenance is often overlooked. If neglected, automatic transmission fluid deteriorates, allowing sludge and deposits to contaminate the valve body and filter. This can cause poor shifting, slipping, and, ultimately, the need for transmission replacement.

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Valeo Replacement Clutch Kit for Valeo Single Mass Conversion - E39, ...

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T#:580072

Part#: 828484

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$ 906.99 USD

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$ 906.99 USD

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Replacement clutch kit from Valeo for the single mass flywheel conversion kit (ES2702807)

Valeo Clutch Kit - E39

For vehicles with production date from 06/1996

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T#:379441

Part#: 21217528209

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$ 491.99 USD

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$ 491.99 USD

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Comprehensive clutch kit including clutch disc, pressure plate, throw out bearing, pilot bearing, and clutch alignment tool.

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