Replace a leaking or worn 2004-2013 Mazda 3 master cylinder with the Dorman First Stop Brake Master Cylinder M630486, a 100% new unit that converts brake-pedal force into the hydraulic pressure your brake system relies on. It is a direct-fit replacement for the 2004-2013 Mazda 3 with all engines. Dorman precision-engineered it so its design, function and performance match the original master cylinder on the listed applications, and it is built from new, high-quality materials as a safe, durable replacement.
- Precise replacement: The aluminum cylinder housing is built to match the original part's housing 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 of new materials for quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
Specifications: 1 in bore diameter and two outlets. The secondary outlet thread is M12 x 1.0, the rearward outlet size is M12 x 1.0 and the primary outlet thread pitch is 1 mm. The reservoir and sensor are included; mounting hardware is not. Country of origin: Taiwan.
This single Dorman part number covers the 2008 and 2012 model years, along with the other listed years of the 2004-2013 Mazda 3. A soft or sinking pedal, brake fluid seeping at the master cylinder or a steadily dropping fluid level are signs this part may need replacing. Diagnose the cause before you order.
Interchange: 100-1793 · 072-9693 · 13-3165 · 11-3165 · 130.45422 · 355-80075
NM55406 · BPYS4340Z · BPYS4340ZA · BPYS4340ZB · BPYS4340ZC · BPYS4340ZR0B · MC391049 · F143053 · MC143053 · 1001793 · 0729693 · 133165 · 113165 · 13045422 · 35580075
This part cross-references / interchanges with the following part numbers:
100-1793, 072-9693, 13-3165, 11-3165, 130.45422, 355-80075, NM55406, BPYS4340Z, BPYS4340ZA, BPYS4340ZB, BPYS4340ZC, BPYS4340ZR0B, MC391049, F143053, MC143053
