Main shot of the Bexar Pro Hydroboost BP7347 hydraulic brake booster showing cast iron housing and firewall mounting bracket.

Top-down view of the Bexar Pro BP7347 Hydroboost unit showing fluid line routing locations.

Bottom view of the Bexar Pro BP7347 brake booster showing base reinforcement and mounting surface.

Bexar Pro Hydroboost Hydraulic Power Brake Booster for 1997-1999 Chevy P30 & GMC P3500 Commercial Step Vans (BP7347)

Fitment Lookup:

Category: Hydromax Brake Boosters BPC Brand: Bexar Pro Components

Description

SKU: BP7347

Bexar Pro Hydroboost | 1997-1999 Chevy P30 & GMC P3500 Commercial Step Vans

Heavy-Duty Commercial Grade
SPECIAL ORDER: Extra 3-5 Business Days to Ship

CRITICAL: Verify Specifications

Please confirm your firewall mounting configuration, 2.16-inch housing diameter, and stud thread dimensions (10 x 1.25mm) prior to installation. Commercial step vans and stripped chassis vehicles require precise hydraulic assist specifications to ensure maximum braking performance under heavy delivery loads and full motorhome GVWR ratings.

“Engineered to deliver high-pressure hydraulic stopping power for 1997-1999 Chevy P30 and GMC P3500 step vans, providing severe-duty stopping reliability for commercial delivery fleets.”

Ensure maximum braking performance and fleet reliability with the Bexar Pro Hydroboost. Designed specifically for 1997-1999 Chevrolet P30 and GMC P3500 commercial step vans, delivery chassis, and motorhome applications (covering all gas and 6.5L Turbo Diesel powertrains), this hydraulic unit taps directly into your power steering pump pressure to deliver robust stopping power. Reverse-engineered to resolve factory failure points, each unit features 100% new O.E. quality seals, diaphragms, and precision-tested check valves for long-term fleet service life.

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 commercial step van and heavy-duty brakes since 1985:

Pushrod Alignment: Ensure your pedal pushrod linkage aligns completely straight during installation. On P30 and P3500 forward-control cabs, off-angle pushrod travel will score internal piston seals, leading to rapid pressure loss and hydraulic fluid bypass.
Hydraulic System Flush: Hydroboost units are extremely sensitive to metallic debris and oxidized power steering fluid. We mandate a complete fluid flush before installing this unit to protect the new internal spool valves and check valves.
Corrosion Protection: Our exclusive rust-prohibitive finishing process seals raw iron castings from road salt, water spray, and severe environmental exposure common in commercial route operations.

Installation & Troubleshooting Guide →

Special Order Status

This specialized commercial step van unit is routed through our custom distribution network. Please allow an extra 3–5 business days for tracking confirmation and transit.

Core Deposit Terms

The listing price includes the core configuration ($17.00 core deposit value). Send your rebuildable core back within 90 days for full credit back to your payment method.