Dorman M630282 brake master cylinder for the 2004 Chevrolet Silverado 1500 and other vehicles turns pedal force into hydraulic pressure for the brakes. It is made entirely of new materials.
- Part of the Dorman First Stop line
- Aluminum body with a 1.25 in bore diameter
- All rubber components use an EPDM compound for resistance to glycol-based brake fluid
- Made to meet SAE International standards
Quick facts
- Part: Dorman M630282 brake master cylinder
- Fits: 2004 Chevrolet Silverado 1500 and other vehicles
- Material: Aluminum
- Condition: New
A soft or sinking brake pedal, brake fluid on the cylinder body or a brake warning light can mean a worn master cylinder. If a failed master cylinder is the cause, this one replaces it. With the engine off, look for fluid around the cylinder and its reservoir first, and leave pressure tests to a shop. The 2004 Chevrolet Silverado 1500 takes one.
Fits
It is a direct-fit replacement for the 2004 Chevrolet Silverado 1500, and the vehicles it fits include the 2004 GMC Sierra 1500 and the 2003-2004 Chevrolet Tahoe, among many others. If your car is not named here, open the "Vehicles it fits" section to check your exact model and engine.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 1.25 in
- Number of outlets: 2
- Rearward outlet size: 1/2-20
- Secondary outlet thread diameter: 1/2-20
Build and materials
- Material: Aluminum
- Rubber components: EPDM compound
- Reservoir: included
- Sensor: included
- Condition: New
- Country of origin: China
In the box
One brake master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new hardware rather than reusing the old.
Interchange: 100-2636 · 13-3082 · 130.66046 · 130.66047 · 131.66046 · 131.66047 · 355-47174
13907 · MC512590 · 18047524 · M4073 · NM4073A · MC390805 · F140375 · MC140375
This part cross-references / interchanges with the following part numbers:
100-2636, 13907, 13-3082, 130.66046, 130.66047, 131.66046, 131.66047, MC512590, 355-47174, 18047524, M4073, NM4073A, MC390805, F140375, MC140375
Frequently Asked Questions
Is this the right master cylinder for a 2003-2004 Chevrolet Tahoe?
Yes. Dorman M630282 fits the 2003-2004 Chevrolet Tahoe, and each vehicle takes one.
Will this master cylinder fit a 2004 GMC Sierra 1500?
Yes. Dorman M630282 fits the 2004 GMC Sierra 1500. For any other model, open the "Vehicles it fits" section and check your exact vehicle.
Does this Dorman master cylinder come with the reservoir and sensor?
Yes. This master cylinder comes with its reservoir and sensor. Mounting hardware is not included.
What size are the outlet threads on this master cylinder?
The rearward outlet and the secondary outlet are both 1/2-20. The bore diameter is 1.25 in.
Are the rubber parts in this master cylinder made for glycol-based brake fluid?
Yes. All rubber components in this master cylinder are made of an EPDM compound for resistance to glycol-based brake fluid.
