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Dorman - First Stop Brake Master Cylinder P/N:M630620
$152.99
Turn every push of the brake pedal into reliable hydraulic pressure with the Dorman First Stop Brake Master Cylinder M630620, a direct-fit replacement for the 2007-2011 Mazda CX-7 [All]. As the heart of the hydraulic brake system, the master cylinder converts brake-pedal force into the fluid pressure that operates the brakes at each wheel — so a leaking, sinking, or worn-out original is a job for a fresh unit like this one.
- 100% new: made entirely of new materials, not remanufactured.
- Aluminum housing: built to match the casting material of the original part for similar performance.
- Durable seals: all rubber components use a high-quality EPDM compound that resists glycol-based brake fluid.
- Strict specifications: made to meet rigorous SAE International standards.
Built with two outlets and a 0.875 in cylinder bore; the rearward/secondary outlet uses an M12 x 1.0 thread (1 mm pitch). The package contains the master cylinder only — reservoir, sensor, and mounting hardware are not included, so transfer or source those separately and consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
Interchange: 100-2915 · 1002915 · 13-3783 · 133783 · 11-3783 · 113783 · 130.45119 · 130.45120 · 355-80022 · 35580022 · NM55418 · EG234340Z · EG234340ZR00 · MC391258 · R135756. Manufacturer part number M630620.
This part cross-references / interchanges with the following part numbers:
100-2915, 13-3783, 11-3783, 130.45119, 130.45120, 355-80022, NM55418, EG234340Z, EG234340ZR00, MC391258, R135756
Frequently Asked Questions
Does this master cylinder fit my vehicle?
It's a direct-fit replacement for the 2007-2011 Mazda CX-7 (All). Check the Buyer's Guide tab to confirm it matches your exact vehicle before ordering.
Is the reservoir or sensor included?
No. The package contains the master cylinder only — the reservoir, sensor, and mounting hardware are not included, so plan to transfer or source those separately.
What is this master cylinder made of?
The cylinder housing is aluminum, built to match the casting material of the original, and all rubber components use a high-quality EPDM compound that resists glycol-based brake fluid.
What does a brake master cylinder do?
It converts brake-pedal force into hydraulic pressure that pushes brake fluid through the lines to operate the brakes at each wheel.
Is this a remanufactured unit?
No. It's 100% new, made entirely of new materials and built to meet rigorous SAE International standards.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630620
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