Dorman - First Stop Brake Master Cylinder P/N:M630794
Turn each press of the brake pedal into hydraulic pressure with the Dorman First Stop Brake Master Cylinder M630453, a new unit precision-engineered to match the design, function and performance of the original master cylinder on the listed applications. It is listed for many models, among them the 2007-2008 Chevrolet Silverado 1500, 2007-2008 GMC Sierra 1500 and 2007-2008 Chevrolet Tahoe. See the Buyer's Guide tab for the full list.
Made from new, high-quality materials, this GMC Sierra 1500 master cylinder is intended as a safe, durable replacement. It comes with its reservoir and sensor.
Specifications: 1.25-inch bore diameter and two outlets. The rearward outlet size is M12 x 1.0, the secondary outlet thread diameter is M12 x 1.0, and the primary outlet thread pitch is 1 mm. The reservoir and sensor are included. Mounting hardware is not included. Consult the vehicle service information for installation, bleeding procedures, the correct fasteners and whether the original fasteners may be reused. Country of origin: China.
Interchange: 174-1152 · 100-2645 · 13-3267 · 10-3267 · 130.66056 · 131.66056 · 355-47182
1741152 · 1002645 · 133267 · 103267 · 13066056 · 13166056 · 35547182 · 15821794 · 15844166 · NM4194 · MC390986 · F142901 · MC142901
This part cross-references / interchanges with the following part numbers:
Is this the right Tahoe master cylinder for my 2007-2008 Chevy?
M630453 is listed for the 2007-2008 Chevrolet Tahoe. The Buyer's Guide tab shows every vehicle it fits.
What does a brake master cylinder do?
It converts the force from the brake pedal into hydraulic pressure. It sends brake fluid through its two outlets into the brake lines, which operate the brakes at each wheel.
What comes in the box?
You get the master cylinder with its reservoir and sensor included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners and whether the originals may be reused.
What are signs a master cylinder may need replacing?
A soft or sinking brake pedal, fluid leaking around the master cylinder, or a dropping fluid level can be signs. These symptoms can have other causes, so diagnose the brake system first.
What are the key specifications of M630453?
It has an aluminum housing, a 1.25-inch bore, two outlets with an M12 x 1.0 secondary outlet thread and a 1 mm primary outlet thread pitch, and EPDM rubber parts that resist glycol-based brake fluid.
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.