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Dorman - First Stop Brake Master Cylinder P/N:M630475
$170.99
Push firm, consistent hydraulic pressure to both brake circuits with the Dorman - First Stop Brake Master Cylinder M630475. It drops in as a direct-fit replacement for the 2005-2007 Toyota Avalon [All], taking pedal force and converting it into the fluid pressure that operates the brakes.
- Aluminum housing: the cylinder body is cast to match the original part's casting material for similar performance.
- EPDM seals: the rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: built entirely from new materials, not remanufactured, and made to meet rigorous SAE International standards.
- Key specs: 0.875 in bore with two outlets; rearward and secondary outlet threads are M10 x 1.0, with a 1 mm primary outlet thread pitch.
This listing is for the master cylinder only — no reservoir, sensor, or mounting hardware is included, so transfer or source those separately and consult the vehicle service information for the correct fasteners and whether they may be reused. If a failed master cylinder is the cause of a slowly sinking or spongy pedal, this replaces it. Country of origin: China.
Interchange: 100-1557 · 1001557 · 14064 · 13-3270 · 133270 · 11-3270 · 113270 · 130.44040 · 355-76023 · 35576023 · NM55327 · MC391064 · 4702807010 · F142626 · MC142626
Manufacturer part number M630475
This part cross-references / interchanges with the following part numbers:
100-1557, 14064, 13-3270, 11-3270, 130.44040, 355-76023, NM55327, MC391064, 4702807010, F142626, MC142626
Frequently Asked Questions
What vehicle does this master cylinder fit?
It's a direct-fit replacement for the 2005-2007 Toyota Avalon (All). Check the Buyer's Guide tab to confirm it matches your vehicle before ordering.
Does it include a reservoir, sensor, or mounting hardware?
No. This listing includes the master cylinder only — no reservoir, sensor, or mounting hardware. Consult the service information for the correct fasteners.
What is the bore size and outlet thread?
The bore is 0.875 in with two outlets. The rearward and secondary outlet threads are M10 x 1.0, and the primary outlet thread pitch is 1 mm.
Is this a remanufactured unit?
No. It's 100% new, built entirely from new materials and made to meet rigorous SAE International standards.
What are signs the master cylinder may need replacing?
A brake pedal that slowly sinks, feels spongy, or unexplained brake-fluid loss can be signs. Diagnose the cause first, since other components can produce these symptoms.
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Dorman - First Stop Brake Master Cylinder P/N:M630475
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