Turn every press of the pedal into hydraulic braking pressure with this Dorman brake master cylinder, part number M71277 from the First Stop line. It fits many vehicles, among them the 1974-1976 Jeep Cherokee, 1976 Jeep CJ5 and 1976 Jeep CJ7. See the "Vehicles it fits" section for the full list.
Dorman designed this master cylinder to reproduce the design, function and performance of the original unit on the listed applications. It is built from new, high-quality materials as a safe, durable replacement for a worn or leaking original.
- Precise replacement: the cylinder housing is made to match the casting material of the original part, for similar performance.
- Durable design: every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: made entirely from new materials for quality and safety.
- Strict specifications: built to meet rigorous SAE International standards.
The master cylinder is the heart of the hydraulic brake system. It converts the force from your foot on the pedal into fluid pressure that travels through the brake lines to the wheels. If internal seals wear or the unit leaks, pedal feel and braking response can suffer. That makes a sound master cylinder central to a healthy brake system.
Interchange: 83-36024 · 83-36074 · 83-50024 · 100-2235 · M-82024 · 13-1489 · 10-1489 · 130.62024 · 355-52006
18M13 · M900094 · 11489 · 8124366 · J8126736 · MC501380 · 18001122 · 18008376 · 5458522 · 5471817 · 71277 · NM1489 · MC36235 · F66707 · F71277 · MC66707 · MC71277 · 8336024 · 8336074 · 8350024 · 1002235 · M82024 · 131489 · 101489 · 13062024 · 35552006
This part cross-references / interchanges with the following part numbers:
18M13, 83-36024, 83-36074, 83-50024, M900094, 100-2235, M-82024, 11489, 13-1489, 10-1489, 130.62024, 8124366, J8126736, MC501380, 355-52006, 18001122, 18008376, 5458522, 5471817, 71277, NM1489, MC36235, F66707, F71277, MC66707, MC71277
Frequently Asked Questions
Is this the right Jeep XJ master cylinder for my Cherokee?
It is listed for the 1974-1976 Jeep Cherokee, 1976 Jeep CJ5 and 1976 Jeep CJ7, which predate the XJ-generation Cherokee. Check the "Vehicles it fits" section to confirm your vehicle.
What does a brake master cylinder do?
It converts the force from the brake pedal into hydraulic pressure. That pressure sends brake fluid through the lines to the brakes at each wheel.
What is this Dorman master cylinder built from?
The housing is made to match the casting material of the original part. All rubber components use a high-quality EPDM compound that resists glycol-based brake fluid. It is made entirely from new materials.
What are signs a brake master cylinder may need replacing?
A soft or sinking pedal, fluid leaking at the master cylinder, or a fluid level that keeps dropping may point to a worn unit. Diagnose the brake system first, because other parts can cause these signs.
What should I know about installing it?
The brake system must be bled after a master cylinder is replaced. Follow your vehicle's service information for the installation and bleeding steps, and use the brake fluid it specifies.
