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Dorman - First Stop Clutch Master Cylinder P/N:CM39645
$56.99
Press the clutch pedal and this Dorman - First Stop Clutch Master Cylinder (CM39645) generates the hydraulic pressure that disengages the clutch so you can shift. It's a direct replacement reverse-engineered from the original equipment, and it drops in for the 1987 Jeep Cherokee (L4-2.1L), 1987-1990 Jeep Cherokee (L4-2.5L, L6-4.0L), 1987 Jeep Comanche (L4-2.1L), 1987-1990 Jeep Comanche (L4-2.5L, L6-4.0L), 1987 Jeep Wagoneer (L4-2.5L) and 1987-1990 Jeep Wagoneer (L6-4.0L).
- Direct replacement: reverse-engineered from the factory unit to fit and function like the original clutch master on the listed vehicles.
- Durable materials: high-grade rubber components compatible with standard brake fluid.
- Bore size: 0.688 in. inside diameter.
- Trustworthy value: backed by a U.S.-based team of engineers and quality-control experts.
If a leaking or failing clutch master cylinder is the cause of a soft or sinking clutch pedal or trouble shifting, this unit replaces it. Diagnose the hydraulic system first, as those symptoms can have other causes. Country of origin: China.
Interchange: 18M2066 · M0102 · 23-32002 · 2332002 · M903091 · Q-83002 · Q83002 · 12960 · 136.63002 · 137.63002 · 53004467 · 8953004467 · CM113830 · LMC205 · 2839645 · CM1256 · 39645 · CMA39645 · SH5006 · F113830
Manufacturer part number CM39645.
This part cross-references / interchanges with the following part numbers:
18M2066, M0102, 23-32002, M903091, Q-83002, 12960, 136.63002, 137.63002, 53004467, 8953004467, CM113830, LMC205, 2839645, CM1256, 39645, CMA39645, SH5006, F113830
Frequently Asked Questions
What does this clutch master cylinder do?
When you press the clutch pedal, it generates hydraulic pressure that travels to the slave cylinder to disengage the clutch so you can change gears.
Which vehicles does this fit?
It fits the 1987-1990 Jeep Cherokee and Comanche (L4-2.1L in 1987, plus L4-2.5L and L6-4.0L) and the Jeep Wagoneer (L4-2.5L, L6-4.0L). See the Buyer's Guide tab to confirm your vehicle.
What is the bore size?
The inside diameter is 0.688 in.
What are signs my clutch master cylinder may need replacing?
Possible signs include a soft or spongy clutch pedal, a pedal that sinks to the floor, difficulty shifting, or fluid leaks. Diagnose the cause before replacing.
What fluid and materials does it use?
It uses high-grade rubber components made for compatibility with standard brake fluid.
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Dorman
Dorman - First Stop Clutch Master Cylinder P/N:CM39645
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