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Dorman - First Stop Clutch Master Cylinder P/N:CM39660
$97.99
Keep clutch engagement crisp and the pedal firm with the Dorman First Stop Clutch Master Cylinder CM39660. This clutch master cylinder generates the hydraulic pressure that operates the clutch release system when you press the clutch pedal. It drops in as a direct-fit replacement for a range of 1983-1993 BMW models, including the 318i [L4-1.8L], 325i [L6-2.5L], 528e [L6-2.7L], 533i [L6-3.2L], 535i [L6-3.5L], 635CSi [L6-3.5L], M3 [L4-2.3L] and M6 [L6-3.5L] — see the Buyer's Guide tab for the full application list.
- Direct replacement: built to match the original clutch master cylinder on the listed BMW applications.
- Precise design: reverse-engineered from original equipment to fit and function reliably.
- Durable materials: uses high-grade rubber components compatible with standard brake fluid.
- Specs: 0.75 in (19 mm) bore with an M10 x 1.0 outlet thread; supplied as a single cylinder (package contains the clutch master cylinder).
If a leaking or malfunctioning clutch master cylinder is the cause of a soft, sinking, or hard-to-engage clutch pedal, this unit replaces it. Signs the original may need replacing include fluid loss at the pedal, a pedal that sinks to the floor, or difficulty shifting; diagnose the cause before replacing. Backed by a team of engineers and quality-control experts in the United States. Country of origin: China.
Interchange: 18M2068 · M0305 · 23-62005 · 2362005 · M903093 · Q-04005 · Q04005 · Q-04009 · Q04009 · 21521156000 · 071-7872 · 0717872 · 072-8279 · 0728279 · 12346 · 136.34005 · 136.34009 · 137.34005 · CM116662 · LMC108 · CM1016 · CM1018 · 39660 · CMA39660 · SH5103 · F116662. Manufacturer part number CM39660.
This part cross-references / interchanges with the following part numbers:
18M2068, M0305, 23-62005, M903093, Q-04005, Q-04009, 21521156000, 071-7872, 072-8279, 12346, 136.34005, 136.34009, 137.34005, CM116662, LMC108, CM1016, CM1018, 39660, CMA39660, SH5103, F116662
Frequently Asked Questions
What does this clutch master cylinder do?
It generates the hydraulic pressure that operates the clutch release system when you press the clutch pedal, sending fluid on to actuate the clutch.
Which vehicles does the CM39660 fit?
It's a direct-fit replacement for many 1983-1993 BMW models, including the 318i, 325i, 528e, 533i, 535i, 635CSi, M3 and M6. See the Buyer's Guide tab for the full list.
What are the key specifications?
It has a 0.75 in (19 mm) bore and an M10 x 1.0 outlet thread, and uses high-grade rubber components compatible with standard brake fluid.
What are signs my clutch master cylinder may need replacing?
Fluid loss around the pedal, a clutch pedal that sinks to the floor or feels soft, and difficulty shifting can be signs. Diagnose the cause before replacing.
How many cylinders are included?
The package contains one clutch master cylinder, and the listed applications use one per vehicle. Country of origin is China.
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Dorman - First Stop Clutch Master Cylinder P/N:CM39660
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