Dorman - First Stop Brake Master Cylinder P/N:M630921

Convert brake-pedal effort into the hydraulic pressure that operates the brakes with the Dorman First Stop Brake Master Cylinder M630921. It drops in as a direct-fit replacement for the 2014-2019 Nissan Sentra [All], and it's built new from the ground up rather than remanufactured.

• Cast iron housing: constructed to match the casting material of the original part for similar performance.
• EPDM rubber components: made from a high-quality EPDM compound for resistance to glycol-based brake fluid.
• 100% new: made entirely of new materials, not remanufactured.
• SAE-standard build: made to meet rigorous SAE International standards.

This unit has a 0.9375 in bore diameter, two outlets, and a single reservoir that is included, along with a sensor. The rearward and secondary outlets use an M12 x 1.0 thread with a 1 mm primary outlet thread pitch. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused. If a failed master cylinder is the cause of a sinking or spongy brake pedal, this part replaces it; diagnose the cause before replacing. Country of origin: Taiwan.

Interchange: 100-4096 · 1004096 · 130.42225 · 355-67031 · 35567031 · 460103SG0B · MC391477. Manufacturer part number M630921.