HomeTransmission > Manual Transmission ComponentsLuk LMC108 Clutch Master Cylinder
Part #: LMC108

Luk LMC108 Clutch Master Cylinder

⚙️ 52 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 325i, 318i, 318is, 325is, 325iX, M3, 635CSi, 325, 528e, 535i, 535is, M5, M6, 325e, 325es, 533i, and 633CSi
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Reliable Clutch Master Cylinder for BMW Manual Transmissions

The Luk LMC108 clutch master cylinder is engineered for precise hydraulic control in select BMW manual transmission models. Crafted from durable aluminium, this component ensures consistent clutch engagement and smooth shifting performance.

  • Constructed from high-quality aluminium for strength and corrosion resistance
  • Compatible with BMW 318i, 318is, 325e, 325es, 325i, 325is, 325iX, 528e, 533i, 535i, 535is, 635CSi, M3, M5, and M6 models
  • Includes push rod and installation instructions for straightforward replacement
  • Features a female connector for secure hydraulic line attachment
  • New part with a bore diameter of 0.750 inches (19.05 mm) for precise hydraulic pressure

Product Details and Specifications

The Luk LMC108 clutch master cylinder is designed without a reservoir or heat shield and does not come pre-filled or pre-bled, allowing for customized fluid selection and bleeding during installation. This new part is supplied without a clutch slave cylinder, making it ideal for replacing only the master cylinder component in your BMW manual transmission system. The aluminium construction offers durability and resistance to wear, while the included push rod and installation instructions facilitate a smooth replacement process.

Compatible BMW Models and Applications

This clutch master cylinder is compatible with a range of BMW vehicles, including the 318i, 318is, 325e, 325es, 325i, 325is, 325iX, 528e, 533i, 535i, 535is, 635CSi, M3, M5, and M6 models. It is specifically designed for manual transmission systems requiring a 0.750 inch bore diameter, ensuring proper hydraulic function and clutch operation.

Common Issues Addressed by the Luk LMC108

  • Clutch pedal feels spongy or lacks proper resistance
  • Hydraulic fluid leaks from the master cylinder
  • Difficulty shifting gears due to inconsistent clutch engagement
  • Clutch pedal does not return smoothly after depression
  • Worn or damaged master cylinder affecting clutch performance

Installation Notes and Tips

Installation of the Luk LMC108 clutch master cylinder includes the push rod and detailed instructions to assist with replacement. Since the unit does not include a reservoir or pre-filled fluid, ensure the hydraulic system is properly bled after installation to remove air and maintain optimal clutch function. Verify compatibility with your specific BMW model and manual transmission before installation.

Quality Assurance and Warranty

The Luk LMC108 is a new, OEM-quality part manufactured to meet or exceed original equipment specifications. While no pre-bleeding or reservoir is included, the aluminium construction and precise bore diameter contribute to reliable performance and longevity. Please consult the product documentation for warranty details and coverage.

This part fits 52 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993BMW325i2.5LL6N/A
1992BMW318i1.8LL4N/A
1992BMW325i2.5LL6N/A
1991BMW318i1.8LL4N/A
1991BMW318is1.8LL4N/A
1991BMW325i2.5LL6N/A
1991BMW325is2.5LL6N/A
1991BMW325iX2.5LL6N/A
1991BMWM32.3LL4N/A
1990BMW325i2.5LL6N/A
1990BMW325isN/A
1990BMW325iX2.5LL6N/A
1990BMWM32.3LL4N/A
1989BMW325i2.5LL6N/A
1989BMW325isN/A
1989BMW325iX2.5LL6N/A
1989BMW635CSi3.5LL6N/A
1989BMWM32.3LL4N/A
1988BMW325i2.5LL6N/A
1988BMW325isN/A
1988BMW325iX2.5LL6N/A
1988BMW528e2.7LL6N/A
1988BMW535i3.5LL6N/A
1988BMW535isN/A
1988BMW635CSi3.5LL6N/A
1988BMWM32.3LL4N/A
1988BMWM53.5LL6N/A
1988BMWM63.5LL6N/A
1987BMW325e2.7LL6N/A
1987BMW325esN/A
1987BMW325i2.5LL6N/A
1987BMW325isN/A
1987BMW528e2.7LL6N/A
1987BMW535i3.5LL6N/A
1987BMW635CSi3.5LL6N/A
1987BMWM63.5LL6N/A
1986BMW325e2.7LL6N/A
1986BMW528e2.7LL6N/A
1986BMW535i3.5LL6N/A
1986BMW635CSi3.5LL6N/A
1985BMW318i1.8LL4N/A
1985BMW325e2.7LL6N/A
1985BMW528e2.7LL6N/A
1985BMW535i3.5LL6N/A
1985BMW635CSi3.5LL6N/A
1984BMW318i1.8LL4N/A
1984BMW325e2.7LL6N/A
1984BMW528e2.7LL6N/A
1984BMW533i3.2LL6N/A
1983BMW528e2.7LL6N/A
1983BMW533i3.2LL6N/A
1982BMW528e2.7LL6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12346136.3400521521156000396605110278100541206072108728279CM39660CMA39660M0305SH5103

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.