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Dorman - First Stop Brake Master Cylinder P/N:M630619
$146.99
Turn brake-pedal effort into the hydraulic pressure that operates the brake system with the Dorman - First Stop Brake Master Cylinder M630619. It drops in as a direct-fit replacement for the 2007-2012 and 2014-2015 Mazda CX-9 (All engines) — two separate year ranges, so confirm your model year against the Buyer's Guide tab.
Dorman precision-engineers this master cylinder to match the design, function, and performance of the original unit on the listed applications, built entirely from new, high-quality materials.
- Aluminum housing: constructed to match the casting material of the original part for similar performance.
- Two outlets: 0.875 in bore diameter, with M14 x 1.5 outlet thread sizing.
- Durable EPDM rubber components: a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely of new materials, not remanufactured, and made to meet rigorous SAE International standards.
This listing is the master cylinder only — the reservoir, sensor, and mounting hardware are not included; transfer or replace them as directed by the vehicle service procedure. Country of origin: Taiwan.
Interchange: 100-3713 · 1003713 · 13-4111 · 134111 · 11-3555 · 113555 · 11-4111 · 114111 · 130.45121 · 13045121 · 355-80023 · 35580023 · NM55417 · TD114340Z · TD114340ZA · TD114340ZR0A · MC391214 · F900097 · MWMMC900097. Manufacturer part number M630619.
This part cross-references / interchanges with the following part numbers:
100-3713, 13-4111, 11-3555, 11-4111, 130.45121, 355-80023, NM55417, TD114340Z, TD114340ZA, TD114340ZR0A, MC391214, F900097, MWMMC900097
Frequently Asked Questions
What does a brake master cylinder do?
It converts the force from your brake pedal into hydraulic pressure, sending brake fluid through the outlets to operate the vehicle's braking system.
Does this fit my Mazda CX-9?
It's a direct-fit replacement for the 2007-2012 and 2014-2015 Mazda CX-9 (All engines). Note the gap at 2013; check your exact year in the Buyer's Guide tab.
Are a reservoir, sensor, or mounting hardware included?
No. This listing is the master cylinder only. Transfer or replace the reservoir, sensor, and mounting hardware as directed by the vehicle service procedure.
What is this master cylinder made of?
The housing is aluminum, constructed to match the casting material of the original part. Its rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
What are signs the master cylinder may need replacing?
A soft or spongy pedal, a pedal that slowly sinks under steady foot pressure, or unexplained brake-fluid loss. Diagnose the cause first; if the master cylinder is at fault, this replaces it.
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Dorman - First Stop Brake Master Cylinder P/N:M630619
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