Dorman - First Stop Brake Master Cylinder P/N:M631025

The Dorman - First Stop Brake Master Cylinder M631025 converts the force from your brake pedal into the hydraulic pressure that operates the brake circuits, and it drops in as a direct-fit replacement for the 2014-2019 Toyota Corolla and 2013-2014 Toyota Matrix (all engines). It's precision-engineered to reproduce the design, function, and performance of the original master cylinder on the listed vehicles.

• 100% new: built entirely from new materials, not remanufactured.
• Aluminum housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
• EPDM seals: rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
• Built to spec: made to meet SAE International standards; 0.875 in (7/8 in) bore with two outlets sized M12 x 1.0.

This single-reservoir unit ships with the reservoir, cap, and a sensor included. The push rod, brake booster, bleeder hoses, and mounting hardware/bracket are not included — consult the vehicle service information for the correct fasteners and whether they may be reused. Signs the original may need replacing include a sinking or spongy pedal or brake-fluid loss; diagnose the cause before replacing. Country of origin: China.

Interchange: 100-4100 · 1004100 · 11-4400 · 114400 · 13-4400 · 134400 · 130.44129 · 130.44130 · 4720102660 · 4720102670 · MC146028
Manufacturer part number M631025.