Turn brake-pedal effort into the hydraulic pressure that operates every wheel with the Dorman - First Stop Brake Master Cylinder M630282. It drops in as a direct-fit replacement for the listed 2003-2004 Cadillac Escalade, Escalade ESV, and Escalade EXT; 2003-2004 Chevrolet Blazer and Tahoe; 2003 Chevrolet Suburban 1500; 2004 Chevrolet Avalanche 1500 and Silverado 1500; 2003-2004 GMC Yukon; 2003 GMC Yukon XL 1500; and 2004 GMC Sierra 1500 (see the Buyer's Guide tab for the full engine-level fitment). Engineered to match the original master cylinder's design and function, it houses a 1.25 in bore and two outlets, with a 1/2-20 secondary outlet thread.
Consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: China.
Interchange: 100-2636 · 1002636 · 13907 · 13-3082 · 133082 · 130.66046 · 130.66047 · 131.66046 · 131.66047 · MC512590 · 355-47174 · 35547174 · 18047524 · M4073 · NM4073A · MC390805 · F140375 · MC140375
Manufacturer part number M630282
This part cross-references / interchanges with the following part numbers:
What does this brake master cylinder do?
It converts the force from your brake pedal into hydraulic pressure that is sent through the two outlets to actuate the vehicle's brake system.
Which vehicles does the M630282 fit?
It's a direct-fit replacement for listed 2003-2004 Cadillac Escalade/ESV/EXT, Chevrolet Blazer, Tahoe, Suburban 1500, Avalanche 1500, Silverado 1500, and GMC Yukon, Yukon XL 1500, and Sierra 1500. See the Buyer's Guide tab.
Does it come with the reservoir and sensor?
Yes. Per the catalog, this master cylinder 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.
Is this unit new or remanufactured?
It is 100% new, made entirely of new materials rather than remanufactured, and built to meet SAE International standards.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.