This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.

Brake Master Cylinder M99031 Features:

• Fits 1978-1980 Buick; 1978-1980 Chevrolet; 1978-1980 GMC; 1977-1980 Oldsmobile; 1978-1980 Pontiac
• Precise replacement — cylinder housing is constructed to match the casting material of the original part and ensure similar performance
• Durable design — all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
• 100% new — made entirely of new materials, not remanufactured, to ensure highest quality and safety
• Strict specifications — made to meet rigorous SAE International standards