SKP SK5474821 Power Brake Booster

Brand SKP SK5474821
Fits Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab · 31 vehicles

OE-spec fit. Built to match original equipment dimensions and function.

Durable construction. Made from quality materials for dependable braking support.

Brake assist restored. Multiples pedal force for smoother stopping performance.

Cross-references Quality-Built B1042, 5474821 and 18044444 for the same application. See all 8.

$129.46Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $129.46
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Brake Booster Replacement

The SKP SK5474821 power brake booster restores braking assist by multiplying pedal force for smoother, more controlled stopping. It is built to OE specifications for direct-fit service on select Chevrolet, GMC, Buick, Isuzu, Saab, and Oldsmobile applications.

  • OE-spec replacement power brake booster for direct-fit service.
  • Built from durable materials for long-term braking system performance.
  • Restores vacuum-assisted brake boost for consistent pedal feel.

Fitment Details

Compatible with select 2002-2006 GM and related SUV applications. Fits 2003-2006 Chevrolet SSR, N/A. Fits 2004-2005 Buick Rainier, N/A. Fits 2005 Chevrolet Trailblazer, N/A, w/ o Vacuum Switch Port. Fits 2005 Chevrolet Trailblazer EXT, N/A, w/ o Vacuum Switch Port. Fits 2005 GMC Envoy, N/A, w/ o Vacuum Switch Port. Fits 2005 GMC Envoy XL, N/A, w/ o Vacuum Switch Port. Fits 2005 GMC Envoy XUV, N/A, w/ o Vacuum Switch Port. Fits 2003-2005 Isuzu Ascender, N/A. Fits 2005 Saab 9-7x, N/A. Fits 2002-2004 Chevrolet Trailblazer, N/A. Fits 2002-2004 Chevrolet Trailblazer EXT, N/A. Fits 2002-2004 GMC Envoy, N/A. Fits 2002-2004 GMC Envoy XL, N/A. Fits 2004 GMC Envoy XUV, N/A. Fits 2002-2004 Oldsmobile Bravada, N/A.

What It Helps Correct

  • Hard brake pedal feel caused by a weak booster.
  • Reduced braking assist during normal driving and stops.
  • Inconsistent pedal response from a worn vacuum booster.
  • Fitment issues when replacing an OE-style booster on supported applications.

Installation Notes

Verify the vacuum switch port configuration before ordering, since some 2005 applications require the version without a vacuum switch port. Confirm the original booster style and vehicle fitment against the part number SK5474821 before installation.

Quality Assurance

SKP manufactures this booster to meet OE specifications for fit and function. Part number SK5474821 is cross-referenced to Quality-Built B1042 for the same application.

This part fits 31 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2006ChevroletSSR
2005BuickRainier
2005ChevroletSSR
2005ChevroletTrailblazerw/ o Vacuum Switch Port
2005ChevroletTrailblazer EXTw/ o Vacuum Switch Port
2005GMCEnvoyw/ o Vacuum Switch Port
2005GMCEnvoy XLw/ o Vacuum Switch Port
2005GMCEnvoy XUVw/ o Vacuum Switch Port
2005IsuzuAscender
2005Saab9-7x4.2LL6
2004BuickRainier
2004ChevroletSSR
2004ChevroletTrailblazer
2004ChevroletTrailblazer EXT
2004GMCEnvoy
2004GMCEnvoy XL
2004GMCEnvoy XUV
2004IsuzuAscender
2004OldsmobileBravada
2003ChevroletSSR
2003ChevroletTrailblazer
2003ChevroletTrailblazer EXT
2003GMCEnvoy
2003GMCEnvoy XL
2003IsuzuAscender
2003OldsmobileBravada
2002ChevroletTrailblazer
2002ChevroletTrailblazer EXT
2002GMCEnvoy
2002GMCEnvoy XL
2002OldsmobileBravada
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Quality-Built — B10425474821180444441804769481804444408180476940DELCO178670DL178670