Not sure your clutch master cylinder is holding pressure? A clutch master cylinder converts your pedal effort into the hydraulic pressure that disengages the clutch. If a leaking or failing master cylinder is the cause of a soft, spongy, or sinking clutch pedal, this Dorman - First Stop Clutch Master Cylinder CM106439 is a direct replacement for it. It fits the 1979 AMC Spirit [L4-2.0L, L6-3.8L, V8-5.0L], 1980-1981 AMC Spirit [L4-2.5L], 1979-1981 AMC Spirit [L6-4.2L], 1980-1981 AMC Concord [L4-2.5L, L6-4.2L], 1980-1983 Jeep CJ5 [L4-2.5L, L6-4.2L], 1980-1981 Jeep CJ5 [V8-5.0L], 1980-1986 Jeep CJ7 [L4-2.5L, L6-4.2L], and 1980-1981 Jeep CJ7 [V8-5.0L] — see the "Vehicles it fits" section for the full list.
- Direct replacement: built to match the original clutch master cylinder in the listed vehicles.
- Reverse-engineered design: developed from original equipment to install and operate reliably.
- Durable materials: includes high-grade rubber components for compatibility with standard brake fluid.
- Trustworthy value: backed by a team of engineers and quality-control experts in the United States.
Bore size: 0.813 in inside diameter. Country of origin: Taiwan.
Interchange: 385-547 · 385547 · M0106 · M0107 · Q-83006 · Q83006 · Q-83007 · Q83007 · 11958 · 136.63006 · 136.63007 · 5359822 · CM1260 · 800012 · F106439
Manufacturer part number CM106439.
This part cross-references / interchanges with the following part numbers:
385-547, M0106, M0107, Q-83006, Q-83007, 11958, 136.63006, 136.63007, 5359822, CM106439, CM1260, 800012, F106439
Frequently Asked Questions
What does this clutch master cylinder do?
It converts your clutch pedal effort into hydraulic pressure that moves fluid to disengage the clutch. If a failed master cylinder is the cause of your pedal issue, this unit replaces it.
Which vehicles does CM106439 fit?
It's a direct replacement for the 1979-1981 AMC Spirit, 1980-1981 AMC Concord, 1980-1983 Jeep CJ5, and 1980-1986 Jeep CJ7 across the listed engines. Check the "Vehicles it fits" section to confirm your vehicle.
What fluid does it use?
It includes high-grade rubber components made for compatibility with standard brake fluid. Consult your vehicle service information for the correct fluid specification and fill procedure.
What is the bore size?
The inside diameter is 0.813 in. Matching bore size helps ensure the correct hydraulic feel and travel for the listed applications.
What numbers does this part interchange with?
It interchanges with 385-547, M0106, M0107, Q-83006, Q-83007, 11958, 136.63006, 136.63007, 5359822, CM1260, 800012, and F106439.
