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Dorman - First Stop Brake Master Cylinder P/N:M630556
$155.99
Build firm, reliable brake pedal pressure with the Dorman - First Stop Brake Master Cylinder (M630556). This master cylinder converts pedal effort into the hydraulic pressure that operates the brake system, and it drops in as a direct-fit replacement across a wide range of GM trucks and vans — including the 2009-2018 Chevrolet Express 2500/3500/4500, 2015-2018 Express Cargo and Express Pasajeros, 2009-2014 Silverado 2500 HD / 3500 HD and 2014 Silverado 2500, 2009-2013 Suburban 2500, 2009-2018 GMC Savana 2500/3500 and 2009-2016 Savana 4500, 2009-2014 Sierra 2500 HD / 3500 HD, and 2009-2013 Yukon XL 2500 (all engines). See the Buyer's Guide tab for the full application list.
- 100% new: built entirely from new materials, not remanufactured.
- Aluminum housing: constructed to match the casting material of the original part for similar performance.
- EPDM rubber components: made from a high-quality EPDM compound for resistance to glycol-based brake fluid.
- Two outlets: rearward/secondary outlet size M14 x 1.5 (primary outlet 1.5 mm thread pitch); 1.5 in bore diameter; includes reservoir and sensor. Mounting hardware is not included.
Made to meet rigorous SAE International standards. If a leaking or failing master cylinder is the cause of a sinking or spongy pedal, this replaces it. Country of origin: China.
Interchange: 100-3729 · 1003729 · 13-4117 · 134117 · 10-4117 · 104117 · 130.66070 · 13066070 · 355-47196 · 35547196 · 15935845 · NM4216 · NM4216A · MC391184 · F144393 · MC144393
Manufacturer part number M630556
This part cross-references / interchanges with the following part numbers:
100-3729, 13-4117, 10-4117, 130.66070, 355-47196, 15935845, NM4216, NM4216A, MC391184, F144393, MC144393
Frequently Asked Questions
What does this brake master cylinder do?
It converts brake pedal effort into hydraulic pressure that operates the vehicle's brake system. If a failed master cylinder is the cause of your pedal problem, this replaces it.
Is it new or remanufactured?
It is 100% new, built entirely from new materials rather than remanufactured, and made to meet rigorous SAE International standards.
Does it include a reservoir, sensor, or mounting hardware?
It includes the reservoir and sensor. Mounting hardware is not included; consult the vehicle service information for the correct fasteners and whether they may be reused.
What are the outlet and bore specs?
It has two outlets — the rearward/secondary outlet is M14 x 1.5, with a 1.5 mm primary outlet thread pitch — and a 1.5 in bore diameter. The housing is aluminum, matching the casting material of the original part.
Which vehicles does M630556 fit?
It fits many 2009-2018 GM trucks and vans, including Chevrolet Express, Silverado HD, Suburban 2500, GMC Savana, Sierra HD, and Yukon XL 2500. Check the Buyer's Guide tab for the full list.
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Dorman
Dorman - First Stop Brake Master Cylinder P/N:M630556
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