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Luk LMC109 Clutch Master Cylinder
| Brand | Luk LMC109 |
|---|---|
| Fits | BMW · 15 vehicles |
Hydraulic clutch release. Built on LuK's expertise in modern clutch release systems.
Aluminium construction. Lightweight housing for dependable clutch master cylinder performance.
Push rod included. Ready for a more complete installation.
Cross-references Dayco 72109, Dorman - First Stop CM39378 and Dynomax 39378 for the same application. See all 11.
Clutch Master Cylinder for BMW Manual Transmissions
The LuK LMC109 clutch master cylinder is a hydraulic replacement part for select BMW manual transmission applications. Built with an aluminium body and supplied with a push rod and installation instructions, it supports consistent clutch pedal hydraulic transfer for service replacement on BMW 320i, 528i, 530i, and 735i models.
- Aluminium construction for durable hydraulic system service
- Female connector gender for the specified OE-style connection
- Push rod included for installation
- Installation instructions included
- New part, not remanufactured
- Reservoir not included
- Pre-filled fluid: no
- Pre-bled system: no
- Clutch slave cylinder not included
Detailed Product Overview
LuK LMC109 is a clutch master cylinder developed for manual transmission clutch release systems, reflecting LuK and Schaeffler’s long experience in hydraulic clutch actuation. This part number is used for BMW applications including 1976-1978 BMW 530i, 1977-1983 BMW 320i, 1979-1981 BMW 528i, and 1985-1986 BMW 735i. It cross-references Dorman - First Stop CM39378 for the same application.
For buyers searching for a BMW 320i clutch master cylinder, BMW 528i hydraulic clutch master cylinder, or BMW 735i manual transmission clutch master cylinder, LMC109 provides a direct replacement option for the specified vehicles. The aluminium housing and OE-style connector details support straightforward service on the clutch hydraulic circuit.
What It Helps Fix
- Soft or inconsistent clutch pedal feel
- Loss of hydraulic pressure in the clutch system
- Difficulty disengaging the clutch
- Fluid leakage at the master cylinder
- Clutch pedal travel issues caused by a worn hydraulic cylinder
Installation Notes
Install LMC109 using the included instructions and verify the female connector, push rod fitment, and hydraulic line routing before assembly. Because the reservoir is not included and the system is not pre-filled or pre-bled, the clutch hydraulic circuit must be filled and bled after installation. Inspect the clutch slave cylinder and related hydraulic components during service, especially on BMW 320i, 528i, 530i, and 735i manual transmission repairs.
Quality Assurance
LuK is recognized for its role in the evolution of hydraulic clutch release systems, and this new clutch master cylinder is built for the listed BMW applications with service-focused OE-style construction.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1986 | BMW | 735i | 3.5L | L6 | N/A | — |
| 1985 | BMW | 735i | 3.5L | L6 | N/A | — |
| 1983 | BMW | 320i | 1.8L | L4 | N/A | — |
| 1982 | BMW | 320i | 1.8L | L4 | N/A | — |
| 1981 | BMW | 320i | 1.8L | L4 | N/A | — |
| 1981 | BMW | 528i | 2.8L | L6 | N/A | — |
| 1980 | BMW | 320i | 1.8L | L4 | N/A | — |
| 1980 | BMW | 528i | 2.8L | L6 | N/A | — |
| 1979 | BMW | 320i | 2.0L | L4 | N/A | — |
| 1979 | BMW | 528i | 2.8L | L6 | N/A | — |
| 1978 | BMW | 320i | 2.0L | L4 | N/A | — |
| 1978 | BMW | 530i | 3.0L | L6 | N/A | — |
| 1977 | BMW | 320i | 2.0L | L4 | N/A | — |
| 1977 | BMW | 530i | 3.0L | L6 | N/A | — |
| 1976 | BMW | 530i | 3.0L | L6 | N/A | — |
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