Keep hydraulic pressure moving to your brakes with the Dorman First Stop Brake Master Cylinder M80568, a new replacement unit that turns brake pedal effort into the hydraulic pressure your brake system relies on. It fits many vehicles, among them the 1969 Chevrolet Camaro, the 1975-1978 Dodge B300 and the 1978 Dodge CB300. See the Buyer's Guide tab for the full list.
Dorman precision-engineers this master cylinder to match the design, function and performance of the original unit on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the cast iron cylinder housing is built 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.
Specifications: cast iron master cylinder; 1.125 in. bore diameter; two outlets; 1/2-20 secondary outlet thread; reservoir included; sensor not included; mounting hardware not included. Country of origin: China.
A master cylinder may need replacing if the brake pedal feels soft or sinks, if the pedal slowly drops under steady pressure, or if brake fluid leaks at the cylinder. Diagnose the cause first. If the master cylinder is at fault, M80568 replaces it. Consult the vehicle service information for the bleeding procedure and the correct fasteners.
