Main shot of the Bexar Pro Hydroboost BP7363 hydraulic brake booster showing cast iron housing and firewall mounting bracket.

Close-up view of the hydraulic input ports and 100% new seals on the Bexar Pro BP7363 booster.

Top-down view of the Bexar Pro BP7363 Hydroboost unit showing fluid line routing locations.

Bottom view of the Bexar Pro BP7363 brake booster showing base reinforcement and mounting surface.

Bexar Pro Hydroboost Hydraulic Power Brake Booster for 2003-2005 Chevy Astro & GMC Safari Vans (BP7363)

Fitment Lookup:

Category: Hydroboost Brake Boosters BPC Brand: Bexar Pro Components

Description

SKU: BP7363

Bexar Pro Hydroboost | 2003-2005 Chevy Astro & GMC Safari Vans

Commercial & Passenger Grade
In Store & Fast Shipping

CRITICAL: Verify Specifications

Please confirm your firewall mounting pattern, 2.16-inch housing diameter, and stud thread dimensions (10 x 1.25mm) prior to installation. Chevrolet Astro and GMC Safari mid-size vans utilize compact engine bay geometry that demands precise hydraulic boost clearance to maintain proper pedal return and fluid flow.

“Engineered to restore immediate, firm pedal response and high-pressure hydraulic stopping performance for final-generation Chevy Astro and GMC Safari vans.”

Eliminate spongy pedal feel and restore confident stopping power with the Bexar Pro Hydroboost. Designed specifically for final-generation mid-size vans—including 2003-2005 Chevrolet Astro and GMC Safari (RWD & AWD models)—this hydraulic power brake booster leverages power steering fluid pressure to deliver responsive, high-output braking assist in tight engine compartments. Reverse-engineered to correct original OEM weaknesses, every unit is assembled with 100% new O.E. quality seals, diaphragms, and precision-tested check valves.

Specification	Detail
Housing Diameter	2.16 inches
Booster Type	Hydraulic (Power Steering Assist)
Stud Thread Size	10 x 1.25mm
Housing Material	Cast Iron
Internal Components	100% New Seals, Diaphragms & Check Valves
Mounting Hardware	Includes Mounting Bracket (Hardware Excluded)

🛠️ Expert Installation & Field Note

From our shop experience specializing in specialized vehicle braking systems since 1985:

Pushrod Alignment: Ensure the pedal pushrod connects cleanly to the firewall bracket without binding. Tight doghouse clearances in Astro and Safari vans make straight pushrod alignment critical to avoid scoring internal spool seals.
Power Steering Fluid Bleeding: Hydroboost units on 4.3L Vortec vans are highly sensitive to air trapped in the steering loop. Flush the power steering reservoir and bleed all air before road testing to prevent pedal kickback or pump noise.
Corrosion Protection: Our specialized rust-prohibitive finishing process coats raw cast iron surfaces to endure splash, road debris, and underbody moisture over extended service intervals.

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 ($65.00 core deposit value). Send your original rebuildable core back within 90 days for a full refund back to your original payment method.