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Drivetrain Mounts and Upgrades

From the factory, engine and transmission mounts are rubber and thus a wear component. Worn out engine or transmission mounts create sloppiness and a disconnect between the driver and your BMW's powerplant. If your vehicle is purpose built for the track, we recommend solid engine and transmission mounts. These have zero deflection, but come at the expense of added NVH (noise, vibration, and harshness). Poly engine and transmission mounts offer a good balance between OEM rubber and solid mounts for those with mixed purpose vehicles, offering great performance and connection with little sacrifice in terms of NVH.

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ECS - Corporate Logo
T#:377537
Part#: 002705ECS01
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Enhance your car's performance with ECS Tuning's polyurethane transmission mounts, designed for both street and track applications. These mounts are engineered to withstand high torque and forced-induction scenarios, eliminating concerns about torn mounts and providing a more engaging driving experience. Although polyurethane may introduce some additional NVH (Noise, Vibration, Harshness), its exceptional durability, wear resistance, and resistance to water, oil, and grease make it the perfect choice for performance enthusiasts. ECS Tuning offers two durometer options to match your driving style, along with a comprehensive DIY installation guide, ensuring a complete solution for your transmission mount requirements.

Key Features:

  • Minimized transmission movement, reducing the risk of mis-shifts and over-revs.
  • Made from high-quality polyurethane bonded with 304 Stainless Steel.
  • Enhanced driving experience for both street and track enthusiasts.
  • Two durometer options available: 80A for race applications and 70A for daily driving (ES#2859359).
  • Replaces weak OEM mounts.
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ECS - Corporate Logo
T#:378193
Part#: 002447ECS03KT
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Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

These 88A urethane E46 M3 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included is the front diff mount and two rear mounts in the cover.

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ECS - Corporate Logo
T#:589555
Part#: 026709ECS09
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$ 156.39 USD
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Upgrade your worn OE rubber bushings with ECS Tuning's Performance Polyurethane Differential Bushing Set. In-House Engineered to improve power delivery and handling, with a superior service life over the soft factory rubber bushings.
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ECS - Corporate Logo
T#:596679
Part#: 026711ECS09
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Upgrade your worn rubber bushings with ECS Tuning's Performance Polyurethane Differential Bushing Set. In-House Engineered to improve power delivery and handling, with a superior service life over the soft factory rubber bushings.
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ECS - Corporate Logo
T#:589549
Part#: 26696ECS09
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Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
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ECS - Corporate Logo
T#:378192
Part#: 002447ECS02KT
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Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

These 88A urethane E46 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included are the two front diff mounts and the rear mount in the cover.

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ECS - Corporate Logo
T#:638460
Part#: 026809ECS10KT
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Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
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ECS - Corporate Logo
T#:341288
Part#: 002447ECS01KT
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Urethane mounts keep the differential from twisting under load. As torque is put through the driveline it causes anything to twist and move. The differential is mounted to the subframe and the twisting and deflection can be transferred to the rest of the chassis. With a stiffer mount the differential will not deflect as much. This improves seat-of-the-pants feeling to the driver, giving more feedback for smoother power delivery. In theory, there's also more torque being sent to the drive wheels since it's not being used up shifting the diff weight around.

These are tough 88A durometer urethane bushings with a anodized almunum center sleeve, engineered by ECS. This is a set of E36 diff bushings - 1 for the front and 2 for the rear cover. New high-grade hardware is included (the front bolt has a tendency to snap from all that torque twisting!).

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ECS - Corporate Logo
T#:638439
Part#: 026809ECS09KT
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Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
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ECS - Corporate Logo
T#:656153
Part#: 026696ECS10
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Differential bushings are responsible for keeping your rear end planted during the delivery of power to the rear wheels. As these bushings age, they wear out and should be replaced. If you ever see your bushings are cracked, it is time to replace them. By eliminating the drivetrain deflection that factory rubber bushings permit, throttle response is improved, and the tendency for a car to “Wheel Hop” is significantly reduced. Upgrade to ECS Poly Diff Bushings and feel the difference!
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ECS - Corporate Logo
T#:388091
Part#: 002705ECS
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A sloppy shifter is one of the common complaints of older BMWs. In addition to the shifter linkage the transmission mounts contribute to rough and clunky shifting. BMW transmission mounts are rubber and get softer over time. This allows the transmission to dance around which changes the geometry of the shift linkage and could make it harder to shift. These urethane transmission bushings are stiffer than the stock rubber mounts and won't let the transmission shift around as much. The round design also has more surface area than the stock mounts which helps spread the load. Because the urethane is stiffer, expect more vibration to make its way into the shift lever area. Engine motor mounts should also be considered as a cause for driveline vibration, transmission movement, and poor shifting. Consider replacing your motor mounts at the same time as your tranny mounts.

Price is for the pair of transmission mounts with hardware.

This item fits the following BMWs: 
1989-1995  E34 BMW  525i 530i 535i 540i M5 
1992-1998  E36 BMW  318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 
1997-2003  E39 BMW  525i 528i 530i 540i M5 
1999-2005  E46 BMW  323i 323ci 325i 325ci 328i 328ci 330i 330ci M3 
2008-2012  E82 BMW  128i 135i 1M Coupe 
2006-2011  E90 BMW  325i 328i 330i 335d 335i - Sedan 
2006-2012  E91 BMW  328i - Wagon 
2007-2013  E92 BMW  328i 335i 335is - Coupe 
2007-2013  E93 BMW  328i 335i - Convertible 
1997-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe 

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ECS - Corporate Logo
T#:378219
Part#: 002447ECS04KT
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$ 84.74 USD
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Your rear differential is indirectly connected to your right foot through the engine and driveline, and connected to the seat of your pants through the chassis. Soft factory rubber differential bushings absorb vibrations between chassis and differential, providing comfort and softness in both of these connections.

Enter ECS Tuning's In-House Engineered Performance Polyurethane Differential Bushings. By eliminating the deflection factory rubber bushings permit, the connection between your right foot (and your seat) to the wheels is improved. Removal of this slop allows for crisper power transfer from differential to wheels, which means better throttle control while carving a canyon road, drag racing, sliding the rear end out, or just driving to work. This is achieved without the harshness or vibration associated with delrin or solid differential mounts.

Featuring a tough 88A durometer polyurethane and Black anodized 6061-T6 aluminum Sleeve, our Performance Polyurethane Differential Bushings are more resistant to chemicals, ozone degradation, road salt, and general wear and tear than factory rubber bushings, resulting in a longer service life.

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ECS - Corporate Logo
T#:384597
Part#: 002447ECS01KT1
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Your E36's rear differential is indirectly connected to your right foot through the engine and driveline, and connected to the seat of your pants through the chassis. Soft factory rubber differential bushings absorb vibrations between chassis and differential, providing comfort and softness in both of these connections. ECS Tuning's In-House Engineered Performance Polyurethane Differential Bushing eliminate deflection permitted by factory bushings, improving the connection you feel to your differential. Removal of this slop allows for crisper power transfer from differential to wheels, which means better throttle control while carving a canyon road, drag racing, sliding the rear end out, or just driving to work. This is achieved without the harshness or vibration associated with delrin or solid differential mounts. Featuring a tough 88A durometer polyurethane and Black anodized 6061-T6 aluminum Sleeve, our Performance Polyurethane Differential Bushings are more resistant to chemicals, ozone degradation, road salt, and general wear and tear than factory rubber bushings, resulting in a longer service life.
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Packaged by Turner - Corporate Logo
T#:556190
Part#: E39V8DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Lemforder mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Lemforder Engine Mount (x2)
  • OEM Lemforder Manual Transmission Mount (x2)
  • New Installation Hardware
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Packaged by Turner - Corporate Logo
T#:556191
Part#: E39M5DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Corteco mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Corteco Engine Mount (x2)
  • OEM Corteco Automatic Transmission Mount (x2)
  • New Installation Hardware
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Packaged by Turner - Corporate Logo
T#:556123
Part#: 11811137076KT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These Genuine BMW mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • Genuine BMW Engine Mount (x2)
  • OEM Lemforder Manual Transmission Mount (x2)
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T#:5389726
Part#: 11812283798TKT
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T#:556244
Part#: E53X56DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Rein mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Rein Engine Mount (x2)
  • OEM Rein Transmission Mount (x1)
  • New Installation Hardware
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T#:556968
Part#: 33112282482KT3
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This kit includes Turner Motorsport solid aluminum differential race mounts pre installed in the differential cover for a quick install. These mounts where developed by Turner Motorsport for their Grand-Am Cup E46 M3 race cars, the advantages of solid aluminum mounts is increased suspension & drivetrain response, less drivetrain loss resulting in more wheel horsepower, and longevity - they effectively last forever. These CNC-machined mounts are a direct replacement for the stock rubber pieces, and have been lightened to remove excess weight. 

 

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Packaged by Turner - Corporate Logo
T#:556186
Part#: E39I6DMKT2
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Lemforder mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Lemforder Engine Mount (x2)
  • OEM Lemforder Manual Transmission Mount (x2)
  • New Installation Hardware
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T#:556187
Part#: E39I6DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Lemforder mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Lemforder Engine Mount (x2)
  • OEM Lemforder Automatic Transmission Mount (x2)
  • New Installation Hardware
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T#:556262
Part#: F10535IDMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Corteco mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Corteco Engine Mount (x2)
  • OEM Corteco Transmission Mount
  • New Installation Hardware
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T#:556253
Part#: E60M5DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Febi and Genuine BMW mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Febi Engine Mount (Left and Right Sides)
  • Genuine BMW Transmission Mount (x2)
  • New Installation Hardware
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T#:556189
Part#: E39V8DMKT2
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Lemforder mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Lemforder Engine Mount (x2)
  • OEM Lemforder Automatic Transmission Mount (x2)
  • New Installation Hardware
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T#:556185
Part#: E34M5DMKT
Ships on Jan 14, 2027
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These OEM Lemforder mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • OEM Lemforder Engine Mount (x2)
  • OEM Lemforder Manual Transmission Mount (x2)
  • New Installation Hardware
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T#:556137
Part#: E30325DMKT2
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These Genuine BMW mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • Genuine BMW Engine Mount (x2)
  • Genuine BMW AutomaticTransmission Mount (x2)
  • New Installation Hardware
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T#:556136
Part#: E30325DMKT
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Drive line slop is often caused by faulty engine and transmission mounts. This can result in knocking noises under heavy acceleration, excessive vibration, and a less responsive feel in power. These Genuine BMW mounts are perfect to eliminate these problems and provide long lasting reliability.

Included in this kit:

  • Genuine BMW Engine Mount (x2)
  • Genuine BMW Manual Transmission Mount (x2)
  • New Installation Hardware
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