Shop OEM General Motors Part # 19371361 (178-0853, 1780853, 20940394). Power Brake Booster. CREW CAB. EXTENDED CAB. Silverado, Sierra. STANDARD CAB. Brake Power Booster Unit - Repair or Replace If you have

Power Brake Booster.
Power Brake Booster.
Item is HaZmat

Fits Sierra 2500 HD, Sierra 3500 HD, Silverado

CREW CAB. EXTENDED CAB. Silverado, Sierra. STANDARD CAB.
Brake Power Booster Unit - Repair or Replace
If you have a brake pedal that is suddenly stiff or you hear a whistling noise when you step on your brakes—especially when you're stopped—the culprit may be a failed brake booster. Our technicians can easily diagnose a possible brake booster failure in your .