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Dorman - First Stop Brake Master Cylinder P/N:M630439
$80.99
Convert brake-pedal effort into the hydraulic pressure that feeds both brake circuits with the Dorman First Stop Brake Master Cylinder M630439. It's a direct-fit replacement for the 2006-2008 Chevrolet Impala [All] and the 2006-2007 Chevrolet Monte Carlo [All], engineered to match the design, function, and performance of the original master cylinder on these applications. This is a two-outlet unit with a 1 in bore, and the fluid 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.
- 100% new: made entirely of new materials, not remanufactured.
- Aluminum housing: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- Durable design: the rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid.
- Strict specifications: made to meet rigorous SAE International standards.
Secondary/rearward outlet thread is M13 x 1.5 and the primary outlet thread pitch is 1.5 mm. Country of origin: China. If a failed master cylinder is the cause of a sinking, spongy, or low brake pedal, this replaces it.
Interchange: 174-1132 · 1741132 · 100-2360 · 1002360 · 13-3282 · 133282 · 13-3723 · 133723 · 10-3282 · 103282 · 10-3723 · 103723 · 130.62148 · 13062148 · 355-47101 · 35547101 · 10382902 · 10382903 · 19209185 · 19209186 · NM4087 · NM4112 · MC390984 · F142288 · F143383 · MC142288 · MC143383 · Manufacturer part number M630439
This part cross-references / interchanges with the following part numbers:
174-1132, 100-2360, 13-3282, 13-3723, 10-3282, 10-3723, 130.62148, 355-47101, 10382902, 10382903, 19209185, 19209186, NM4087, NM4112, MC390984, F142288, F143383, MC142288, MC143383
Frequently Asked Questions
What does this master cylinder do?
It converts the force from the brake pedal into hydraulic pressure and distributes it through its two outlets to the brake circuits. Replacing it addresses a failed original unit.
Which vehicles does the M630439 fit?
It's a direct-fit replacement for the 2006-2008 Chevrolet Impala [All] and 2006-2007 Chevrolet Monte Carlo [All]. See the Buyer's Guide tab to confirm your vehicle.
Are the reservoir and sensor included?
Yes. Per the catalog, this unit includes the fluid reservoir and the sensor.
Is mounting hardware included?
No. Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused.
What are signs the master cylinder may need replacing?
A sinking, spongy, or low brake pedal or fluid loss can be signs. These symptoms have other possible causes, so diagnose the system before replacing this part.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630439
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