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BMW Drivetrain Parts for BMW Z4 M Roadster S54 (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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MOTUL 75W-90 GEAR 300 Synthetic Gear and Differential Fluid

T#:2451

Part#: MOGR300-75W90

In Stock

10% off MSRP $ 37.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 34.06 USD

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10% off MSRP

$ 37.85

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 34.06 USD

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This MOTUL SAE 75W90 gearbox and differential fluid is a 100% synthetic ester based oil, which can be used in tranmissions and rear differentials under all conditions of use -- street, track and racing. This oil has proved its qualities and resistance to extreme conditions. We would not hesitate to use this MOTUL 75W-90 GEAR 300 gear oil on our own personal vehicles, and neither should you. Be sure to check your owners manual before selecting oil products for street applications. This is a 1 liter bottle, so be sure to order enough for your specific application. API GL-5.MIL-L-2105D.

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300V 5w40 "Competition" - 2 Liters

T#:13957881

Part#: 110817

Ships in 2 Business Days

$ 63.28 USD

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$ 63.28 USD

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Use for Endurance/Rally/ GT/ Historic racing 100% synthetic racing motor oil based on ESTER Core® technology. Through technical partnerships with most prestigious Teams of car racing, MOTUL has developed a wide range of lubricants for Racing and Sport cars. The 300V motorsport line improves performance of the latest generation engines along with high protection against wear, oil pressure drop and oxidation due to high temperature. Power & engine protection. Medium to high engine dilution. Color: Visual Orange Viscosity grade SAE J 300 5W-40 Density at 20°C (68°F) ASTM D1298 0.850 Viscosity at 40°C (104°F) ASTM D445 78.7 mm²/s Viscosity at 100°C (212°F) ASTM D445 13.5 mm²/s HTHS viscosity at 150°C (302°F) ASTM D4741 4.0 mPa.s Viscosity Index ASTM D2270 176.0 Pour point ASTM D97 -48.0 °C / -54.0 °F Flash point ASTM D92 234.0 °C / 453.0 °F

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MOTUL 300V 10W-40 Chrono Race Oil - 2 liter can

T#:2448

Part#: MO300V-10W40-2L

Ships in 9 Business Days

10% off MSRP $ 60.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD

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10% off MSRP

$ 60.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD

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10W40 MOTUL 300V series "CHRONO" competition racing oil is a true racing lubricant for true race cars. Designed for high temperatures, high shear, and the rigors of professional and endurance racing. MOTUL has developed Double Ester Technology for new 300V series, superior to complex ester which was previously recognized as the best base oil (up to now!). Double Ester Technology, made by carefully balancing the ratio of complex ester and the newly developed macromolecular high polymer ester, enable base oil more wide-ranged, and delivers high output performance and superior reliability.

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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.

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

T#:1387

Part#: BM237-HA

Ships in 2 Business Days

$ 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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Motylgear Manual Transmission / Differential Fluid 75w90 - 1 Liter ...

T#:340559

Part#: 317011

Back Ordered

10% off MSRP $ 20.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.40 USD

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10% off MSRP

$ 20.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.40 USD

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Flushing and replacing your manual transmission and differential fluid is one way to ensure that components wear properly to avoid costly problems down the road. Your owner's manual will specify intervals for flushing and refill.

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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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Motul Motyl Gear SAE 75W80 Gear Oil - 1 Liter Bottle (1.05 Quart) ...

T#:2249

Part#: MOTY-75W80-1L

Ships on Sep 30, 2026

10% off MSRP $ 20.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.40 USD

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Qty

10% off MSRP

$ 20.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 18.40 USD

Add to Wish List

Motul Motylgear 75W80 is a gear oil/gearbox lubricant especially recommended for hard to shift gearboxes and also for BMW, Peugeot, Citroen, and Renault gearboxes. Motul has formulated Motylgear 75W-80 as an extreme pressure lubricant for efficient anti-wear protection and reinforced it with synthetic base stocks for a better resistance at high temperature and for longer life.

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