HomeBrake > Brake HydraulicsSKP SKBM630034 Brake Master Cylinder
Part #: SKBM630034

SKP SKBM630034 Brake Master Cylinder

24 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, and Oldsmobile, Blazer, Bravada, Jimmy, S10, and Sonoma
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Brake Master Cylinder for GM S-Series Applications

The SKP Brake Master Cylinder, part number SKBM630034, restores hydraulic pressure transfer for consistent brake pedal response. It is built to OE specifications for a direct-fit replacement on select Chevrolet, GMC, and Oldsmobile vehicles, including Chevrolet Blazer, GMC Jimmy, Chevrolet S10, GMC Sonoma, and Oldsmobile Bravada applications.

Key Features

  • Brake master cylinder for hydraulic brake system operation
  • OE-spec fitment for direct replacement on listed GM applications
  • Durable construction for dependable brake pedal feel
  • 1-inch bore size on specified fitments
  • Cross-reference: Dorman - First Stop M630034

Detailed Description

SKP SKBM630034 is a brake master cylinder engineered to convert pedal force into hydraulic pressure for the braking system. This replacement part is listed for 2000-2005 Chevrolet Blazer, 2000-2004 Chevrolet S10, 2000-2005 GMC Jimmy, 2000-2004 GMC Sonoma, and 2001 Oldsmobile Bravada applications, with 1-inch bore notes on specified vehicles. For 2000 Chevrolet Blazer, 2000 GMC Jimmy, and 2000 Oldsmobile Bravada, fitment notes also specify VIN and plant details. If you are searching for a brake master cylinder for Chevrolet Blazer SKBM630034 or a GMC Jimmy brake master cylinder replacement, this part matches the listed applications.

What It Helps Address

  • Low or inconsistent brake pedal pressure
  • Brake fluid pressure loss within the master cylinder
  • Reduced braking response from a worn hydraulic unit
  • Internal seal wear affecting pedal feel
  • Replacement needs after master cylinder failure on GM S-Series trucks and SUVs

Installation Notes and Tips

Verify bore size, VIN notes, and plant-specific fitment before installation. Bench bleeding the master cylinder before mounting helps reduce trapped air in the hydraulic system. After installation, bleed the brake system thoroughly and confirm a firm pedal before returning the vehicle to service. Confirm compatibility for your exact Chevrolet S10, GMC Sonoma, Chevrolet Blazer, GMC Jimmy, or Oldsmobile Bravada application using the listed year and notes.

Quality Assurance

SKP manufactures this master cylinder to meet OE specifications for fit and function, supporting reliable brake system restoration on the listed vehicles.

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
2005ChevroletBlazerN/ABore: 1 In.
2005GMCJimmyN/ABore: 1 In.
2004ChevroletBlazerN/ABore: 1 In.
2004ChevroletS10N/ABore: 1 In.
2004GMCJimmyN/ABore: 1 In.
2004GMCSonomaN/ABore: 1 In.
2003ChevroletBlazerN/ABore: 1 In.
2003ChevroletS10N/ABore: 1 In.
2003GMCJimmyN/ABore: 1 In.
2003GMCSonomaN/ABore: 1 In.
2002ChevroletBlazerN/ABore: 1 In.
2002ChevroletS10N/ABore: 1 In.
2002GMCJimmyN/ABore: 1 In.
2002GMCSonomaN/ABore: 1 In.
2001ChevroletBlazerN/ABore: 1 In.
2001ChevroletS10N/ABore: 1 In.
2001GMCJimmyN/ABore: 1 In.
2001GMCSonomaN/ABore: 1 In.
2001OldsmobileBravadaN/ABore: 1 In.
2000ChevroletBlazerN/A11th Digit of VIN is K; Bore: 1 In.; Built at Linden, NJ Plant
2000ChevroletS10N/A
2000GMCJimmyN/A11th Digit of VIN is K; Bore: 1 In.; Built at Linden, NJ Plant
2000GMCSonomaN/A
2000OldsmobileBravadaN/A11th Digit of VIN is K; Bore: 1 In.; Built at Linden, NJ Plant

* 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:

M630034

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.