Keep hydraulic pressure moving to your brakes with the Dorman First Stop Brake Master Cylinder M39567, a direct-fit Ford Ranger master cylinder for the 1986-1990 Ford Ranger (All) and the 1986-1990 Ford Bronco II (All). Dorman precision-engineers it to replicate the design, function and performance of the original master cylinder on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: The aluminum cylinder housing is built to match the original part's housing material and is intended to deliver similar performance.
- Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: Made entirely of new materials for quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
Specifications: 0.938 in bore diameter, 2 outlets, and a 7/16-24 rearward outlet size. A reservoir and a sensor are included, but mounting hardware is not. Country of origin: Taiwan.
Fitment: 1986-1990 Ford Bronco II (All) · 1986-1990 Ford Ranger (All). Quantity 1 per application.
Interchange: 783-42033 · 83-42033 · 100-2475 · M-85033 · 13-2374 · 10-2374 · 130.65033 · 131.65033 · 355-54153
18M307 · M900513 · 12203 · MC113427 · E6TZ2140A · M2203 · NM2203 · MC39567 · F113427 · 78342033 · 8342033 · 1002475 · M85033 · 132374 · 102374 · 13065033 · 13165033 · 35554153
This part cross-references / interchanges with the following part numbers:
18M307, 783-42033, 83-42033, M900513, 100-2475, M-85033, 12203, 13-2374, 10-2374, 130.65033, 131.65033, MC113427, 355-54153, E6TZ2140A, M2203, NM2203, MC39567, F113427
Frequently Asked Questions
What does a brake master cylinder do?
It converts brake pedal force into hydraulic pressure and sends brake fluid through its outlets to the brake system. The Dorman M39567 has 2 outlets and a 0.938 in bore.
What are signs a master cylinder may need replacing?
Common signs include a soft or sinking brake pedal, fluid leaking near the master cylinder, or a fluid level that keeps dropping. Other brake parts can cause similar symptoms, so diagnose the system first.
Does it come with a reservoir and mounting hardware?
A reservoir and a sensor are included. Mounting hardware is not, so consult the vehicle service information for the correct fasteners and whether the originals may be reused.
Which vehicles does M39567 fit?
It is listed for the 1986-1990 Ford Bronco II and the 1986-1990 Ford Ranger, with engine code All and one unit per vehicle. See the "Vehicles it fits" section for application details.
Are the seals compatible with my brake fluid?
All rubber components are made of an EPDM compound that resists glycol-based brake fluid. Use the fluid type specified in your vehicle's service information.
