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SKP SKBM630334 Brake Master Cylinder
| Brand | SKP SKBM630334 |
|---|---|
| Fits | Chevrolet and GMC · 73 vehicles |
OE-spec design. Engineered to match original hydraulic performance and fit.
Brake master cylinder. Converts pedal force into hydraulic pressure for braking.
Reliable braking control. Restores responsive brake operation with durable materials.
Cross-references Dorman - First Stop M630334 for the same application. See all 1.
Brake Master Cylinder for Chevrolet and GMC
The SKP Brake Master Cylinder restores hydraulic pressure transfer for dependable brake response. This SKBM630334 is built to OE specifications for proper fit and consistent pedal feel on select Chevrolet and GMC trucks, vans, and SUVs from 2003-2007.
- Brake master cylinder for hydraulic brake system service
- OE-style fit and dimensions for listed applications
- 37 mm bore on most confirmed applications
- Direct replacement for select Chevrolet Silverado, Express, Avalanche, Suburban, GMC Sierra, Savana, and Yukon XL models
- This part cross-references Dorman - First Stop M630334 for the same application
Detailed Product Overview
SKP SKBM630334 is a brake master cylinder engineered to convert pedal force into hydraulic pressure for the brake system. It is listed for multiple 2003-2007 Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 3500, Express 2500, Avalanche 2500, Suburban 2500, and GMC Sierra, Savana, and Yukon XL applications, including select 2007 Chevrolet Silverado 1500 and GMC Sierra 1500 disc brake models. The SKBM630334 part number is a direct-fit replacement choice for vehicles requiring the specified bore and configuration.
Common Brake Issues It May Address
- Low or inconsistent brake pedal response
- Internal hydraulic pressure loss in the master cylinder
- Brake fluid leakage at the master cylinder body
- Uneven braking performance caused by worn hydraulic components
- Restoration of braking control after master cylinder failure
Installation Notes and Fitment Tips
Verify bore size, brake system configuration, and RPO or hydraulic booster requirements before installation. Confirm exact vehicle application for 2003-2007 Chevrolet Silverado and GMC Sierra models, as well as Express, Savana, Avalanche, Suburban, and Yukon XL listings. Bench bleeding and a full brake system bleed are standard service steps after master cylinder replacement.
Quality Assurance
SKP manufactures this master cylinder to meet OE specifications for fit and function. The SKBM630334 is built from durable materials for brake system service on the listed Chevrolet and GMC applications.
| Year | Make | Model | Submodel | Body Type | Bed Length | Notes |
|---|---|---|---|---|---|---|
| 2007 | Chevrolet | Express 2500 | — | — | — | Bore: 37 mm |
| 2007 | Chevrolet | Express 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2007 | Chevrolet | Silverado 1500 | — | — | — | w/ Disc Brakes |
| 2007 | Chevrolet | Silverado 1500 Classic | Hybrid | — | — | Bore: 37 mm |
| 2007 | Chevrolet | Silverado 1500 HD Classic | — | — | — | Bore: 37 mm |
| 2007 | Chevrolet | Silverado 2500 HD Classic | — | — | — | Bore: 37 mm |
| 2007 | Chevrolet | Silverado 3500 Classic | — | — | — | Bore: 37 mm |
| 2007 | GMC | Savana 2500 | — | — | — | Bore: 37 mm |
| 2007 | GMC | Savana 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2007 | GMC | Sierra 1500 | — | — | — | w/ Disc Brakes |
| 2007 | GMC | Sierra 1500 Classic | Denali | — | — | Bore: 37 mm |
| 2007 | GMC | Sierra 1500 Classic | Hybrid | — | — | Bore: 37 mm |
| 2007 | GMC | Sierra 1500 HD Classic | — | — | — | Bore: 37 mm |
| 2007 | GMC | Sierra 2500 HD Classic | — | — | — | Bore: 37 mm |
| 2007 | GMC | Sierra 3500 Classic | — | — | — | Bore: 37 mm |
| 2006 | Chevrolet | Avalanche 2500 | — | — | — | Bore: 37 mm |
| 2006 | Chevrolet | Express 2500 | — | — | — | 8,600 Lb. GVW; Bore: 37 mm |
| 2006 | Chevrolet | Express 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2006 | Chevrolet | Silverado 2500 | — | — | — | Bore: 37 mm |
| 2006 | Chevrolet | Silverado 2500 HD | — | — | — | Bore: 37 mm |
| 2006 | Chevrolet | Silverado 3500 | — | — | — | Bore: 37 mm |
| 2006 | Chevrolet | Suburban 2500 | — | — | — | Bore: 37 mm |
| 2006 | GMC | Savana 2500 | — | — | — | 8,600 Lb. GVW; Bore: 37 mm |
| 2006 | GMC | Savana 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2006 | GMC | Sierra 2500 HD | — | — | — | Bore: 37 mm |
| 2006 | GMC | Sierra 3500 | — | — | — | Bore: 37 mm |
| 2006 | GMC | Yukon XL 2500 | — | — | — | Bore: 37 mm |
| 2005 | Chevrolet | Avalanche 2500 | — | — | — | Bore: 37 mm |
| 2005 | Chevrolet | Express 2500 | — | — | — | 8,600 Lb. GVW; Bore: 37 mm |
| 2005 | Chevrolet | Express 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2005 | Chevrolet | Silverado 1500 | — | Crew Cab Pickup | 6' 6" Foot Bed | Bore: 37 mm; w/ RPO Code JH6 (9,900 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc) or w/ RPO Code JH7 (12,000 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc) |
| 2005 | Chevrolet | Silverado 2500 | — | — | — | Bore: 37 mm |
| 2005 | Chevrolet | Silverado 2500 HD | — | — | — | Bore: 37 mm |
| 2005 | Chevrolet | Silverado 3500 | — | — | — | Bore: 37 mm |
| 2005 | Chevrolet | Suburban 2500 | — | — | — | Bore: 37 mm |
| 2005 | GMC | Savana 2500 | — | — | — | 8,600 Lb. GVW; Bore: 37 mm |
| 2005 | GMC | Savana 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2005 | GMC | Sierra 1500 | — | Crew Cab Pickup | 6' 6" Foot Bed | Bore: 37 mm; w/ RPO Code JH6 (9,900 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc) or w/ RPO Code JH7 (12,000 Lb. GVW, Power Brakes, Hydraulically Boosted, 4 Wheel Disc) |
| 2005 | GMC | Sierra 2500 HD | — | — | — | Bore: 37 mm |
| 2005 | GMC | Sierra 3500 | — | — | — | Bore: 37 mm |
| 2005 | GMC | Yukon XL 2500 | — | — | — | Bore: 37 mm |
| 2004 | Chevrolet | Avalanche 2500 | — | — | — | Bore: 37 mm |
| 2004 | Chevrolet | Express 2500 | — | — | — | Bore: 37 mm; 8,500 or 8,600 Lb. GVW |
| 2004 | Chevrolet | Express 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2004 | Chevrolet | Silverado 1500 | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2004 | Chevrolet | Silverado 2500 | — | — | — | Bore: 37 mm |
| 2004 | Chevrolet | Silverado 2500 HD | — | — | — | Bore: 37 mm |
| 2004 | Chevrolet | Silverado 3500 | — | — | — | Bore: 37 mm |
| 2004 | Chevrolet | Suburban 2500 | — | — | — | Bore: 37 mm |
| 2004 | GMC | Savana 2500 | — | — | — | Bore: 37 mm; 8,500 or 8,600 Lb. GVW |
| 2004 | GMC | Savana 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2004 | GMC | Sierra 1500 | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2004 | GMC | Sierra 2500 | — | — | — | Bore: 37 mm |
| 2004 | GMC | Sierra 2500 HD | — | — | — | Bore: 37 mm |
| 2004 | GMC | Sierra 3500 | — | — | — | Bore: 37 mm |
| 2004 | GMC | Yukon XL 2500 | — | — | — | Bore: 37 mm |
| 2003 | Chevrolet | Avalanche 2500 | — | — | — | Bore: 37 mm |
| 2003 | Chevrolet | Express 2500 | — | — | — | Bore: 37 mm; 8,500 or 8,600 Lb. GVW |
| 2003 | Chevrolet | Express 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2003 | Chevrolet | Silverado 1500 | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2003 | Chevrolet | Silverado 1500 HD | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2003 | Chevrolet | Silverado 2500 | — | — | — | Bore: 37 mm |
| 2003 | Chevrolet | Silverado 2500 HD | — | — | — | Bore: 37 mm |
| 2003 | Chevrolet | Silverado 3500 | — | — | — | Bore: 37 mm |
| 2003 | Chevrolet | Suburban 2500 | — | — | — | Bore: 37 mm |
| 2003 | GMC | Savana 2500 | — | — | — | Bore: 37 mm; 8,500 or 8,600 Lb. GVW |
| 2003 | GMC | Savana 3500 | — | — | — | w/o Active Brake Control; Bore: 37 mm |
| 2003 | GMC | Sierra 1500 | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2003 | GMC | Sierra 1500 HD | — | — | — | Bore: 37 mm; w/ Hydraulic Booster |
| 2003 | GMC | Sierra 2500 | — | — | — | Bore: 37 mm |
| 2003 | GMC | Sierra 2500 HD | — | — | — | Bore: 37 mm |
| 2003 | GMC | Sierra 3500 | — | — | — | Bore: 37 mm |
| 2003 | GMC | Yukon XL 2500 | — | — | — | Bore: 37 mm |
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