Turn every press of the brake pedal into hydraulic braking pressure with the Dorman - First Stop Brake Master Cylinder M630595. It installs as a direct-fit replacement on many vehicles, among them the 2009-2017 Chevrolet Express 2500, the 2009-2017 Chevrolet Express 3500 and the 2009-2017 Chevrolet Express 4500; see the Buyer's Guide tab for the full list.
Precision-engineered to replicate the original master cylinder's design, function and performance on the listed vehicles, this unit is intended as a durable replacement.
- Precise replacement: the aluminum cylinder housing is built to match the original part's material for similar performance.
- Durable design: every rubber component uses a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely from new, high-quality materials, with a focus on safety.
- Strict specifications: made to meet rigorous SAE International standards.
Specifications: 1.5-inch bore diameter; 2 outlets; secondary outlet thread diameter M12 x 1.0; rearward outlet size M12 x 1.0; primary outlet thread pitch 1 mm. The reservoir and a sensor are included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Signs a master cylinder may need replacing include a soft or sinking pedal, fluid leaking at the cylinder, or a falling reservoir level. Other brake faults can cause these signs too, so diagnose the brake system before replacing parts.
Interchange: 100-2901 · 13-4019 · 10-4019 · 130.66068 · 355-47194
1002901 · 134019 · 104019 · 13066068 · 35547194 · 19420963 · 15936936 · NM4215 · MC391168 · F144392 · MC144392
This part cross-references / interchanges with the following part numbers:
19420963, 100-2901, 13-4019, 10-4019, 130.66068, 355-47194, 15936936, NM4215, MC391168, F144392, MC144392
