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Power Brake Booster 54-74826 Compatible with Chevrolet Avalanche 1500 Silverado 1500 Suburban 1500 2500 03-06 For Cadillac Escalade 03-06 For GMC Sierra 1500 Yukon 03-06

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$106.88

$ 47 .99 $47.99

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  • 【Vehicle Fitment】Compatible with Cadillac Escalade 2003-2006, Escalade ESV 2003-2006, Escalade EXT 2003-2006
  • 【Vehicle Fitment】Compatible with Chevrolet Avalanche 1500 2003-2006, Silverado 1500 2003-2006, Silverado 1500 Classic 2007, Silverado 1500 HD 2005-2006 2003, Silverado 3500 2003-2005, Sonora 2003-2006, Suburban 1500 2500 2003-2006, Tahoe 2003-2006
  • 【Vehicle Fitment】Compatible with GMC Sierra 1500 2003-2006, Sierra 1500 Classic 2007, Sierra 1500 HD 2006-05 2003, Sierra 3500 2003-2005, Yukon 2003-2006, Yukon XL 1500 2500 2003-2006
  • 【Part Number】54-74826, 89040683
  • 【Purchase with Confidence】Enjoy a 12-month guarantee on each product for your peace of mind
  • 【Fitment Reminder】Review product description for detailed fitment info before ordering to confirm compatibility with your vehicle


Product Description

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  • Yes, it fits Cadillac/Chevrolet/GMC. Specific models can be viewed at five points.

  • With the engine off, pump the brake pedal until it feels firm and hold. Then, start the engine and the pedal will sink slightly if the booster is operating properly.

  • After replacing a brake booster, it may be necessary to adjust the brake light switch. Some vehicles contain a one-time use brake light switch. In these cases, the brake light switch will need to be replaced.

  • This is due to a failing master cylinder piston seal. This will result in brake fluid entering and contaminating the brake booster. The master cylinder and brake booster will need to be replaced.

  • A brake booster assists in pushing the master cylinder piston when the brakes are applied. This multiplies pedal force to decrease stopping distances.

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About Power Brake Booster

  • A power brake booster, also known as a vacuum booster, is a device used in vehicles to enhance braking performance and reduce the effort required to apply the brakes. It works in conjunction with the brake pedal and the master cylinder.
  • The power brake booster operates on the principle of vacuum assist. It utilizes vacuum pressure from the engine's intake manifold to multiply the force applied to the brake pedal. When the driver applies pressure to the brake pedal, a valve in the booster opens, allowing vacuum from the engine to enter the booster chamber. This creates a pressure differential that assists in applying the brakes.