Dorman - First Stop Brake Master Cylinder P/N:M630627

Replace a leaking or worn G6 master cylinder with the Dorman First Stop Brake Master Cylinder M630627, the component that converts brake-pedal force into hydraulic pressure for the brake system. It is a direct-fit replacement for the 2008-2012 Chevrolet Malibu (All), 2008-2010 Pontiac G6 (All) and 2008-2009 Saturn Aura (All).

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 cylinder housing is constructed to match the original part's casting material and is designed to deliver similar performance.
• Durable design: every rubber component uses a high-quality EPDM compound for resistance to 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

• Master cylinder material: aluminum
• Bore diameter: 0.938 in
• Number of outlets: 2
• Primary outlet thread pitch: 1.5 mm
• Secondary outlet thread diameter: M14 x 1.5
• Rearward outlet size: M14 x 1.5
• Reservoir and sensor included; mounting hardware not included
• Country of origin: China

Signs a master cylinder may need replacing include a soft or sinking brake pedal, brake fluid leaking at the cylinder or reservoir, and a lit brake warning light. Other brake components can cause these symptoms too, so diagnose the system before replacing parts. Follow the vehicle service information for installation, fasteners and bleeding the brake system.

Interchange: 174-1163 · 100-2816 · 13-4033 · 10-4033 · 130.62160 · 355-47109
1741163 · 1002816 · 134033 · 104033 · 13062160 · 35547109 · 14099 · 25952633 · NM4199 · MC391186 · F143725 · F144422 · MC143725 · MC144422