Turn pedal effort into hydraulic pressure for your brakes with the Dorman First Stop Brake Master Cylinder M83072, a 100% new unit that comes with its reservoir. It fits many vehicles, among them the 1975-1976 Ford F-150, 1973-1976 Ford F-250 and 1976-1977 Ford Bronco. See the Buyer's Guide tab for the full list.
Dorman precision-engineered this master cylinder to match the original unit's design, function and performance on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the cast iron cylinder housing matches the casting material of the original part and is designed 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.
Specifications: 1 in bore diameter. Two outlets: a 7/16-24 rearward outlet and a 9/16-18 in secondary outlet thread. Reservoir included. Sensor and mounting hardware not included. Country of origin: China.
A master cylinder is typically bench-bled before installation, and the brake system is bled afterward, following the vehicle service information. Check that information for the correct fasteners and whether the originals may be reused.
