Main shot of the Bexar Pro Hydroboost BP7371 hydraulic brake booster for Chevy Silverado and GMC Sierra trucks and heavy duty SUVs.

Close-up view of hydraulic input ports and 100% new seals on Bexar Pro BP7371 hydroboost unit.

Top-down view of Bexar Pro BP7371 Hydroboost unit showing fluid line connection locations.

Bottom view of Bexar Pro BP7371 brake booster showing base reinforcement and mounting surface.

Bexar Pro Hydroboost Hydraulic Power Brake Booster for GM Trucks & Heavy-Duty SUVs (BP7371)

Fitment Lookup:

Category: Hydroboost Brake Boosters BPC Brand: Bexar Pro Components

Description

SKU: BP7371

Bexar Pro Hydroboost | GM Full-Size Trucks & Heavy-Duty SUVs

Heavy-Duty Grade
In Store & Fast Shipping

CRITICAL: Verify Specifications

Please confirm your mounting flange, 2.16-inch housing diameter, and stud thread dimensions (M10 x 1.25) prior to installation. GM 1500/2500/3500 trucks and heavy-duty SUVs rely on precise hydraulic assist pressure to maintain safe, reliable stopping power under heavy towing and high payload demands.

“Engineered to restore immediate, high-pressure hydraulic stopping performance and firm pedal feel for GM full-size trucks, heavy-duty pickups, and full-size SUVs.”

Restore maximum stopping confidence and eliminate spongy brake pedal feel with the Bexar Pro Hydroboost (BP7371). Designed specifically for GM full-size trucks and heavy-duty SUVs—including Chevrolet Silverado 1500/2500/3500, Suburban, Avalanche, GMC Sierra 1500/2500/3500, and Yukon XL 2500—this high-performance hydraulic power brake booster leverages power steering fluid pressure to deliver consistent, high-output braking assist. Reverse-engineered to correct original factory failure points, every unit is built with 100% new O.E. quality seals, diaphragms, and precision-tested check valves.

Fitment Guide

MAKE	MODEL	START YEAR	END YEAR
CHEVROLET	AVALANCHE 1500	2003	2003
CHEVROLET	AVALANCHE 2500	2003	2006
CHEVROLET	SILVERADO 1500	2003	2006
CHEVROLET	SILVERADO 1500 CLASSIC	2007	2007
CHEVROLET	SILVERADO 1500 HD	2003	2003
CHEVROLET	SILVERADO 1500 HD	2005	2006
CHEVROLET	SILVERADO 1500 HD CLASSIC	2007	2007
CHEVROLET	SILVERADO 2500	2003	2004
CHEVROLET	SILVERADO 2500	2006	2007
CHEVROLET	SILVERADO 2500 HD	2003	2006
CHEVROLET	SILVERADO 2500 HD CLASSIC	2007	2007
CHEVROLET	SILVERADO 3500	2003	2006
CHEVROLET	SILVERADO 3500 CLASSIC	2007	2007
CHEVROLET	SUBURBAN 1500	2003	2003
CHEVROLET	SUBURBAN 2500	2003	2006
GMC	SIERRA 1500	2003	2006
GMC	SIERRA 1500 CLASSIC	2007	2007
GMC	SIERRA 1500 HD	2003	2003
GMC	SIERRA 1500 HD	2005	2006
GMC	SIERRA 1500 HD CLASSIC	2007	2007
GMC	SIERRA 2500	2003	2004
GMC	SIERRA 2500 HD	2003	2006
GMC	SIERRA 2500 HD CLASSIC	2007	2007
GMC	SIERRA 3500	2003	2006
GMC	SIERRA 3500 CLASSIC	2007	2007
GMC	YUKON XL 2500	2003	2006

Specification	Detail
Housing Diameter	2.16 inches
Booster Type	Hydraulic (Power Steering Assist)
Stud Thread Size	M10 x 1.25
Housing Material	Cast Iron
Internal Components	100% New Seals, Diaphragms & Check Valves
Mounting Bracket Included	Yes
Master Cylinder Included	No
Pedal Rod Extension Included	No

🛠️ Expert Installation & Field Note

From our shop experience specializing in heavy-duty commercial hydraulic braking systems since 1985:

Power Steering System Fluid Flush: GM hydroboost units share fluid with the power steering pump and gear. Always perform a total fluid flush before installation; contaminated power steering fluid is the #1 cause of premature failure and shaft seal leaks.
Pedal Position Sensor Retainer: Take care when removing the brake pedal position sensor clip at the top rod interface during removal on Silverado and Sierra footwells to prevent damaging the wiring harness or retaining clip.
Corrosion Barrier: Our exclusive rust-prohibitive finishing process coats raw cast iron surfaces to withstand harsh under-hood heat, road salt, and long-term fleet service.

Installation & Troubleshooting Guide →

Availability & Logistics

In-stock item available for immediate counter pickup, local delivery, or direct regional shipping.

Core Deposit Terms

The listing price includes the core configuration ($61.00 core deposit value). Send your original rebuildable core back within 90 days for a full refund back to your original payment method.