Dorman - First Stop Brake Master Cylinder P/N:M639039

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.

• 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