Dorman - First Stop Brake Master Cylinder P/N:M630291

Turn brake-pedal effort into the hydraulic pressure that feeds both brake circuits with the Dorman - First Stop Brake Master Cylinder (P/N M630291). It installs as a direct-fit replacement engineered to match the design, function, and performance of the original master cylinder on the 2003-2006 Acura MDX [All], 2005-2008 Honda Pilot [All], and 2006-2008 Honda Ridgeline [All].

• Aluminum housing: the cylinder housing is built to match the casting material of the original part for similar performance.
• EPDM seals: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: made entirely of new materials, not remanufactured.
• Strict specifications: made to meet rigorous SAE International standards.

This unit has a 1.063 in bore and two outlets, with a rearward/secondary outlet size of M14 x 1.5 and a 1.5 mm primary outlet thread pitch. The reservoir and fluid-level sensor are included; mounting hardware is not, so consult the vehicle service information for the correct fasteners and whether they may be reused. Signs a master cylinder may need replacing include a pedal that slowly sinks to the floor, a spongy pedal, or brake fluid leaking at the unit; if a failed master cylinder is the cause, this replaces it. Country of origin: Taiwan.

Interchange: 100-1360 · 1001360 · 072-9603 · 0729603 · 13865 · 13-3174 · 133174 · 11-3174 · 113174 · 130.40058 · 355-59039 · 35559039 · 46100S3VA11 · 46100SJCA51 · NM55336 · MC391007 · F142383 · MC142383. Manufacturer part number M630291.