Dorman - First Stop Brake Master Cylinder P/N:M639011

Keep hydraulic pressure moving through all four brake-line outlets with the Dorman - First Stop Brake Master Cylinder M639011, a direct-fit replacement for the 1998-2009 Chevrolet Chevy [All] and the 1999-2003 Chevrolet Chevy Pickup [All]. The master cylinder converts pedal force into the hydraulic pressure that operates the brakes, and this unit is precision-engineered to reproduce the design, function, and performance of the original on the listed applications.

• Cast-iron housing: the cylinder housing is built to match the casting material of the original part for similar performance, with a 0.813 in bore and four outlets.
• EPDM rubber components: all rubber parts use a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: made entirely of new materials — not remanufactured — for consistent quality.
• SAE standards: made to meet rigorous SAE International standards.

Outlets: rearward outlet M10 x 1.0; secondary outlet thread M12 x 1.0; primary outlet thread pitch 1 mm. This listing is for the master cylinder only — reservoir, sensor, and mounting hardware are not included. Country of origin: China.

Interchange: 130.99011 · 355-92008
13099011 · 35592008 · 93289332 · 39009902 · F900030 · MWMMC900030