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SKP SKM630283 Brake Master Cylinder
Brake Master Cylinder for GM Trucks and SUVs
The SKP Brake Master Cylinder, part number SKM630283, restores hydraulic pressure transfer for consistent brake pedal response. It is built to OE specifications for proper fit and dependable operation on select Chevrolet and GMC applications.
Key Features
- Brake master cylinder for hydraulic brake system service
- OE-spec fitment for select GM full-size trucks and SUVs
- 1.25 in. bore size on listed applications
- Designed for vacuum booster-equipped vehicles
- Direct replacement for Dorman - First Stop M630283
- SKP part number SKM630283 for catalog and search reference
Detailed Description
SKP SKM630283 is a brake master cylinder for 2003-2006 Chevrolet and GMC vehicles with the listed brake and booster configurations. It is engineered to convert pedal force into hydraulic pressure for the brake system, helping restore firm pedal feel and controlled braking. This application includes Chevrolet Silverado 1500, Tahoe, Suburban 1500, Avalanche 1500, Silverado 1500 HD, and GMC Sierra 1500, Sierra 1500 HD, Yukon, and Yukon XL 1500 models with the specified notes. This part cross-references Dorman - First Stop M630283 for the same application.
What It Is Used For
- Brake pedal travel that feels soft or inconsistent
- Loss of hydraulic pressure in the master cylinder
- External or internal master cylinder leakage
- Reduced braking response on vacuum-boosted brake systems
- Service replacement on GM trucks and SUVs with the listed fitment
Installation Notes and Tips
Verify bore size, booster type, and brake-control configuration before installation. This master cylinder is listed for vehicles with a 1.25 in. bore and vacuum booster, and several applications require no active brake control or specific RPO codes. Bench bleeding and a complete brake system bleed are standard service steps after installation.
Quality Assurance
SKP manufactures this master cylinder to meet OE specifications for fit and function, supporting reliable brake system restoration on the listed Chevrolet and GMC applications.
This part fits 19 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Chevrolet | Suburban 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2006 | GMC | Yukon XL 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2005 | Chevrolet | Suburban 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2005 | GMC | Yukon XL 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | Chevrolet | Silverado 1500 | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | Chevrolet | Suburban 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | Chevrolet | Tahoe | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | GMC | Sierra 1500 | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | GMC | Yukon | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2004 | GMC | Yukon XL 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | Chevrolet | Avalanche 1500 | N/A | w/o Active Body Control (ABC); w/ RPO Code JC4 (7,200 Lb. GVW, Power Brakes, Vacuum Boosted, 4 Wheel Disc); w/ RPO Code JC3 (6,400 Lb. GVW, Power Brakes, Vacuum Boosted, 4 Wheel Disc) |
| 2003 | Chevrolet | Silverado 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | Chevrolet | Silverado 1500 HD | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | Chevrolet | Suburban 1500 | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | Chevrolet | Tahoe | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | GMC | Sierra 1500 | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | GMC | Sierra 1500 HD | N/A | Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | GMC | Yukon | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
| 2003 | GMC | Yukon XL 1500 | N/A | w/o Active Brake Control; Bore: 1.25 In.; w/ Vacuum Booster |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.