BMW Drivetrain Parts for BMW 3 Series E30 (1984-1991)

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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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ECS - Corporate Logo
T#:366828
Part#: 009314ECS01A
In Stock
Sale - Save 25% $ 62.99

This product was last offered at the strikethrough price on
06-13-2026

$ 47.24 USD
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$ 62.99

This product was last offered at the strikethrough price on
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$ 47.24 USD
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You use a magnetic drain plug for your engine oil, right? Why not apply the same proactive thinking to the differential too? This is a direct replacement magnetic differential drain plug for your BMW. It will catch and retain fine and larger metal particles in your diff oil. If you're proactive in your diff oil servicing, you will catch a minor issue long before it becomes a headache. Diff drain plug includes one sealing o-ring. Direct replacement for Genuine BMW part number(s): 33117525064, 33110308370, 33110152626
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ECS - Corporate Logo
T#:36472759
Part#: 055182LA01-02
In Stock
Sale - Save 25% $ 33.99

This product was last offered at the strikethrough price on
06-14-2026

$ 25.49 USD
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$ 33.99

This product was last offered at the strikethrough price on
06-14-2026

$ 25.49 USD
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The ECS Billet Master Cylinder Fitting is the ultimate solution for a notorious failure point in BMW E30 clutch systems. This critical fitting, located at the end of the master cylinder reservoir hose, is responsible for delivering hydraulic fluid to the clutch master cylinder inlet. Unfortunately, the OEM plastic fitting is prone to degradation after prolonged exposure to brake fluid, often leading to total hydraulic pressure loss and brake fluid leaks inside your vehicle.

ECS has addressed this issue by engineering a robust and long-lasting alternative. Crafted from 6061 billet aluminum and finished with black hard-coat anodizing for superior corrosion resistance, this precision-machined fitting replaces the fragile plastic original, ensuring leak-free performance for the lifetime of your vehicle. Upgrade to our Billet Master Cylinder Fitting during your next clutch master cylinder service and enjoy peace of mind knowing your BMW is equipped with a durable, high-quality solution.

Features & Benefits:

Made from 6061 billet aluminum for a permanent, reliable upgrade over the factory plastic fitting. Black hard-coat anodized finish ensures long-lasting protection against the elements. Precision-machined barbs match OEM dimensions for a leak-free seal with Genuine and aftermarket master cylinders. Designed for a secure fit within the factory grommet location. Prevents brake fluid leaks and loss of clutch hydraulic pressure caused by plastic fitting failure. Upgrade your BMW and bulletproof your master cylinder with the ECS Billet Aluminum Master Cylinder Fitting. Ensure clutch hydraulic system reliability and enjoy peace of mind knowing your failure-prone plastic master cylinder fitting has been addressed.

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ECS - Corporate Logo
T#:386439
Part#: 017877ECS01A
In Stock
Sale - Save 20% $ 63.99

This product was last offered at the strikethrough price on
06-13-2026

$ 51.19 USD
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Sale - Save 20%
$ 63.99

This product was last offered at the strikethrough price on
06-13-2026

$ 51.19 USD
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This braided stainless steel line replaces the stock hydraulic hose connecting your clutch slave cylinder to the clutch master cylinder. There are several deficiences with rubber, especially as it ages - when new the rubber expands and swells under pressure and the pedal can feel spongy. As rubber ages and is exposed to extreme temperatures the rubber can harden and even shrink (common on brake hoses), which results in a stiff pedal. Rubber clutch lines do not stand up to the stresses of hard use. ECS Exact-Fit stainless reinforced clutch lines provide more confident and dependable shifting by maintaining consistent line pressure, long lasting corrosion resistance, and increased protection from failure. These lines are reinforced with braided stainless steel mesh, affording superior expansion resistance. This resistance to expansion creates a firmer pedal, and a more direct clutch pedal feel. The signature red polymer coating provides additional protection from the elements and abrasion.

This particular stainless steel clutch line fits the following BMWs:
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1988 E28 BMW M5
1987-1989 E24 BMW M6 

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ECS - Corporate Logo
T#:384201
Part#: 121980ECS01KT
In Stock
Sale - Save 25% $ 36.99

This product was last offered at the strikethrough price on
06-13-2026

$ 27.74 USD
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Sale - Save 25%
$ 36.99

This product was last offered at the strikethrough price on
06-13-2026

$ 27.74 USD
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Some modifications to your vehicle may not produce power to create gains in the overall performance of your driving. When you add a "Po' Boy" clutch stop to your BMW the performance gain is directly felt in the driving experience.

The ECS clutch stop allows the driver to fine tune the position of the clutch pedal to closely match the engagement point for precise, quicker shifting. The adjustment range found in this product can be set to the stock engagement point or can be adjusted to follow the wear of the clutch.  Meaning your new experience will never change all the way to the end of the clutch life and can be reset to enjoy the next clutch.

Note: This modification might require some slight modification to the clutch switch mounting bracket, which can be bent slightly by hand.

 

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Packaged by Turner - Corporate Logo
T#:30197962
Part#: G260MTHWKTTKT
Ships in 4 Business Days
$ 97.99 USD
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All new hardware for installing your G260 on an M20 motor, including new dowels and 10mm bolt that goes from the engine side into the transmission.

Whether your refreshing the transmission, doing the clutch and flywheel or doing a manual swap get a new set of hardware for piece of mind and many more service intervals.

Kit Contents:

M12x45 Torx bolt - 23001222890 (QTY2)
M12x75 Torx bolt - 23001222893 (QTY2)
Washer - 07119906063 (QTY 4)
Dowel - 11117524470 (QTY2)
M8x50 ASA Bolt - 23001222887 (QTY 4)
Wave Washer - 07119904115 (QTY 4)
M6x16 Hex Bolt - 07119913015 (QTY 1)
M10x65 Torx Bolt - 07129904681 (QTY2)
Wave Washer - 07119904463 (QTY2)
Hex Nut - 07129904865 (QTY2)

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ECS - Corporate Logo
T#:30662812
Part#: 055059LA01
In Stock
Sale - Save 56% $ 52.99

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

$ 23.24 USD
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Sale - Save 56%
$ 52.99

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

$ 23.24 USD
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As your E30 ages, the rear differential bushing can crack, dry rot, and split. It's time for an upgrade. The ECS Tuning Heavy Duty Differential Bushing is crafted with performance in mind. Instead of using polyurethane, which is known for increasing NVH, the enthusiasts at ECS chose HD 70D rubber. This material offers a close-to-factory feel without the excess deflection of softer bushings, ensuring a pleasurable driving experience free from differential whine and excess movement.

Features & Benefits:

Eliminates Weak OEM Mount: The aging E30 chassis deserves an upgrade. Replace your old, cracked, and worn factory bushing with this HD alternative for improved performance. Perfect for Street or Track: Constructed from HD rubber instead of polyurethane or Delrin, this bushing provides comfort for daily driving while remaining effective in performance applications. Added Responsiveness: The 70D HD rubber compound is stiffer than the stock material, reducing drivetrain movement and effectively locking down your rear differential. Easy Installation: Precision-manufactured to the exact specifications of your OEM differential bushing, the ECS heavy-duty replacement installs just like the factory component. Whether you are replacing an aging factory bushing, removing excess driveline movement, or balancing performance and comfort, ECS Tuning has you covered with their Heavy Duty Rear Differential Bushing.

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ECS - Corporate Logo
T#:369434
Part#: 2511-001
In Stock
Sale - Save 25% $ 80.99

This product was last offered at the strikethrough price on
06-13-2026

$ 60.74 USD
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Sale - Save 25%
$ 80.99

This product was last offered at the strikethrough price on
06-13-2026

$ 60.74 USD
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Upgrade Your BMW Shifter with the BMW Teflon Shifter Bushing Kit

  • Enhanced shifting precision for a smoother driving experience
  • Durable Teflon construction for long-lasting performance
  • Reduces play and slop in the shifter mechanism
  • Easy installation with included hardware and instructions

Enhance the performance of your BMW's shifter with the BMW Teflon Shifter Bushing Kit. This kit is designed to provide enhanced shifting precision, resulting in a smoother and more responsive driving experience. Crafted from durable Teflon material, these bushings offer long-lasting performance and reliability. By reducing play and slop in the shifter mechanism, this kit ensures precise gear changes every time you shift. Installation is quick and easy with the included hardware and detailed instructions, allowing you to enjoy the benefits of improved shifter performance in no time.

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ECS - Corporate Logo
T#:388561
Part#: 25117519669T
In Stock
Sale - Save 25% $ 73.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 55.48 USD
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Sale - Save 25%
$ 73.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 55.48 USD
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Shifter slop is a common complaint among all BMW models. Some of that play comes from the bushings where the shifter carrier mounts to the transmission. The original rubber carrier bushings don't last very long and when they get too soft the shifter flops around. These Teflon bushings are not as stiff as Delrin so they won't transmit as much vibration and buzz in the shifter. Yet Teflon will last much longer than the factory rubber, giving you precise shifting for many years.

Note: this is only one part of the shift linkage and there may be other components that need replacing to improve shifting feel.

We advise getting a replacement bushing carrier pin as well. If the original rubber bushings are worn the pin will have wear too and you will still have slop in the shifter, even with the new bushings.

These are the ROUND shifter carrier bushings (some BMW models have oval bushings).

This item fits the following BMWs:
6/1986-1992 E30 BMW 318i 318is 325e 325es 325i 325is 325ic M3
1992-1999 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic
1999-2006 E46 BMW 323i 323ci 325i 325ci
1982-1988 E28 BMW 528e 533i 535i 535is M5
1989-1995 E34 BMW 525i 535i M5

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Packaged by Turner - Corporate Logo
T#:30960425
Part#: TMSE30M3TSKT
In Stock
$ 109.99 USD
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The oil in your manual transmission is extremely vital to the life of your transmission. Over time it will begin to break down, lose viscosity, and begin to allow excess heat and friction. This kit is the perfect remedy to this problem. Included are 2 quarts of Redline MTL 75w-80 transmission fluid, which features a fully synthetic base for better protection and wear resistance, and Genuine BMW fill and drain plugs.
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Packaged by Turner - Corporate Logo
T#:42133544
Part#: 835225790TKT
In Stock
$ 59.72 USD
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The kit includes 2 Quarts of Red line 75w90 - 57904 and brand new Rein rear diff oil drain plug M22x1.5
GSP North America - Corporate Logo
T#:389682
Part#: 274094
Ships in 3 Business Days
$ 62.99 USD
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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: 

E30 BMW M3

E28 BMW 524td 528e 533i 535i 535is M5

E24 BMW 633CSi 635CSi M6

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Packaged by Turner - Corporate Logo
T#:13430833
Part#: E30SHIFTREBUILKT
Ships in 4 Business Days
$ 211.99 USD
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Everything you need to refresh your shifter! Our team of dedicated BMW experts is at your service! We took the guess work out of rebuilding the shifter for your E30.


Packaged by Turner - Corporate Logo
T#:15777312
Part#: 520-040-215-KT
Back Ordered
$ 1,003.99

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

$ 994.99 USD
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$ 994.99 USD
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A lightweight aluminum flywheel is a great way to increase throttle response and free up horsepower by reducing drivetrain loss. Factory flywheels are built to minimize engine and transmission vibrations, making them heavier and requiring more energy to make them spin. An aluminum flywheel can save lots of weight over the stock steel unit - sometimes over 50%. While the dampening effect of the stock flywheel is reduced, most enthusiasts would agree that the increase in performance is well worth it. In addition, the lighter flywheel allows the engine to spin more freely, improving throttle response. This JB Racing lightweight aluminum flywheel kit and is designed to be used with the included factory clutch, making replacement and service easy and inexpensive, especially compared to specialized racing clutches. It also preserves the driveability of your car on the street, and enthusiasts tolerant of a mild to moderate NVH increase will be especially taken with this setup. In addition, the JB Racing flywheel can be easily rebuilt with a new clutch contact surface, allowing you to enjoy faster revs and superior response for many years to come. Stock Flywheel Weight: 27 lbs. JB Racing Lightweight Aluminum Flywheel: 9 lbs.
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Packaged by Turner - Corporate Logo
T#:29898446
Part#: G260SEALKT
In Stock
Sale - Save 26% $ 20.99

This product was last offered at the strikethrough price on
04-10-2026

$ 15.60 USD
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Sale - Save 26%
$ 20.99

This product was last offered at the strikethrough price on
04-10-2026

$ 15.60 USD
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Includes input, output, and selector rod seals. Great for servicing your transmission during a clutch and flywheel job.
Packaged by Turner - Corporate Logo
T#:55317707
Part#: IRPUSSKT2
Ships in 6 Business Days
New Item
$ 528.99 USD
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Stop guessing where the gate is. Upgrade your connection to the machine and drive your BMW the way it was meant to be driven.