Turn every press of the brake pedal into hydraulic pressure with a new master cylinder for the 2007-2010 and 2012 Mazda 5: the Dorman First Stop Brake Master Cylinder M630574, which sends that pressure to the brakes through two outlets. It is a direct-fit replacement for the 2007-2010 and 2012 Mazda 5 (all engines), with one master cylinder used per vehicle. Dorman engineered this unit to replicate the original master cylinder's design, function and performance on the listed applications. It is built from new, high-quality materials to give a safe, durable replacement.
Specifications: 0.875 in bore diameter; two outlets; secondary outlet thread M12 x 1.0; rearward outlet size M12 x 1.0; primary outlet thread pitch 1 mm. The reservoir, sensor and mounting hardware are not included. Transfer or replace the reservoir and sensor per the service procedure. Consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
Signs this part may need replacing: a spongy or slowly sinking brake pedal, or brake fluid seeping from the master cylinder. If a worn master cylinder is the cause, this unit replaces it. Diagnose the brake system first, because other components can produce similar symptoms.
Interchange: 100-3945 · 13-3410 · 11-3165 · 11-3410 · 130.45424 · 130.45426 · 355-80079
NM55426 · CCY94340Z · CCY94340ZA · CCY94340ZR0A · CGY54340Z · MC391230 · F144139 · F900101 · MC144139 · MWMMC900101 · 1003945 · 133410 · 113165 · 113410 · 13045424 · 13045426 · 35580079
This part cross-references / interchanges with the following part numbers:
Which vehicles does Dorman M630574 fit?
It is listed for the 2007-2010 and 2012 Mazda 5 (all engines), with one master cylinder used per vehicle.
Is the brake fluid reservoir included?
No, the reservoir, sensor and mounting hardware are not included. Transfer or replace the reservoir and sensor per the service procedure, and consult the service information for the correct fasteners and whether they may be reused.
What are the bore and outlet specifications?
It has a 0.875 in bore diameter and two outlets. The secondary outlet thread and rearward outlet size are M12 x 1.0, and the primary outlet thread pitch is 1 mm.
What signs may mean the master cylinder needs replacing?
A spongy or slowly sinking pedal, or fluid seeping from the cylinder, can point to a worn master cylinder. Diagnose the brake system first, since other parts can cause similar symptoms.
Is it compatible with glycol-based brake fluid?
Yes, all of its rubber components are made of an EPDM compound for resistance to glycol-based brake fluid. Use the fluid type your vehicle's manufacturer specifies.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
