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Dorman - First Stop Brake Master Cylinder P/N:M630320
$116.99
Convert brake-pedal effort into the hydraulic pressure that operates the braking system with the Dorman First Stop Brake Master Cylinder M630320. It drops in for the 2000-2005 Chevrolet Impala, 2003-2005 Chevrolet Monte Carlo, 2003-2005 Buick Century, 2003-2004 Buick Regal, and 2003 Pontiac Grand Prix (engine: All). Dorman precision-engineers this unit to reproduce the design, function, and performance of the original master cylinder on the covered applications.
- 100% new: made entirely of new materials, not remanufactured.
- Aluminum housing: constructed to match the casting material of the original part for similar performance.
- Durable EPDM seals: all rubber components use a high-quality EPDM compound for resistance to glycol-based brake fluid.
- Strict specifications: made to meet rigorous SAE International standards.
Specs: 1-inch bore diameter, 4 outlets, with a secondary outlet thread of M10 x 1.0. The reservoir and sensor are included; mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 174-1000 · 1741000 · 174-784 · 174784 · 18M980 · M901137 · 100-3024 · 1003024 · M-82112 · M82112 · 13552 · 13-2960 · 132960 · 10-2960 · 102960 · 130.62112 · 131.62112 · MC500190 · MC512670 · 355-47084 · 35547084 · 18040251 · 18047667 · 18060781 · 19209247 · M3090 · NM3090 · MC390645 · F131053 · F139956 · MC131053 · MC139956. Manufacturer part number M630320.
This part cross-references / interchanges with the following part numbers:
174-1000, 174-784, 18M980, M901137, 100-3024, M-82112, 13552, 13-2960, 10-2960, 130.62112, 131.62112, MC500190, MC512670, 355-47084, 18040251, 18047667, 18060781, 19209247, M3090, NM3090, MC390645, F131053, F139956, MC131053, MC139956
Frequently Asked Questions
What does this brake master cylinder do?
It converts the force you apply at the brake pedal into hydraulic pressure that is sent through the outlets to operate the vehicle's brakes.
Does it include a reservoir and sensor?
Yes. Per the catalog, both the reservoir and the sensor are included with this master cylinder. Mounting hardware is not included.
What vehicles does this fit?
It fits the 2000-2005 Chevrolet Impala, 2003-2005 Chevrolet Monte Carlo, 2003-2005 Buick Century, 2003-2004 Buick Regal, and 2003 Pontiac Grand Prix. See the Buyer's Guide tab to confirm.
What are the bore and outlet specs?
It has a 1-inch bore diameter and 4 outlets, with a secondary outlet thread diameter of M10 x 1.0.
What are signs the master cylinder may need replacing?
A soft, sinking, or low brake pedal or fluid loss may indicate a failing master cylinder. If diagnosis confirms the master cylinder is the cause, this unit replaces it.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630320
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