Commercial-grade Hydro-Boost Brake Booster Casting #2771741 for 1994-1995 Chevrolet Astro and GMC Safari fleets.

Technical detail of the 10 x 1.25mm mounting studs and INV hydraulic ports on the BP7333 Hydro-Boost.

Close-up view of Casting Number 2771741 stamped on the housing of a Bexar Pro hydraulic brake booster.

Heavy-duty Bexar Pro BP7333 Hydro-Boost brake booster for 1994-1995 Chevrolet Astro and GMC Safari commercial fleets.

Casting #2771741 Hydro-Boost | Chevrolet Astro & GMC Safari (1994-1995) | SKU: BP7333

Name: Casting #2771741 Hydro-Boost | Chevrolet Astro &amp; GMC Safari (1994-1995) | SKU: BP7333
SKU: 73845
Price: 368.42 USD
Availability: InStock

$368.42

Fitment Lookup:

Category: Hydroboost Brake Boosters BPC

Description
Additional information

Bexar Pro Hydro-Boost | 1994-1995 Chevy Astro & GMC Safari

SKU: BP7333

Bexar Pro Components Grade

“Precision-engineered hydraulic assist for heavy-duty fleet reliability and uncompromising safety.”

Restore original braking confidence with the **Bexar Pro Hydro-Boost**, specifically balanced for the **1994-1995 Chevrolet Astro and GMC Safari**. This unit is a direct-fit replacement for systems featuring **Casting #2771741**, utilizing the vehicle’s power steering pump to provide superior clamping force. Every unit is engineered to eliminate factory weaknesses, featuring 100% new seals and check valves to ensure long-term performance in both automotive and vocational applications.

Specification	Detail
Verified Casting #	2771741
Booster Type	Hydraulic (Power Steering Powered)
Housing Material	Heavy-Duty Cast Iron
Stud Thread Size	10 x 1.25mm
Internal Components	100% New Seals, Diaphragms & Check Valves
Inlet/Outlet Port	INV (Inverted Flare)

?️ Expert Installation & Field Note

Based on our shop experience specializing in heavy-duty brakes since 1985:

Pushrod Calibration: Ensure the master cylinder pushrod is perfectly centered during assembly. Misalignment is the leading cause of internal cup over-extension, resulting in premature leaks.
System Hygiene: Contaminated power steering fluid will score the new internal bore. A comprehensive system flush is required to protect the 100% O.E. quality seals.
Application Check: This unit is specifically calibrated for the pressure curves of the 1994-1995 van chassis. Verify your original casting number to ensure 100% stroke compatibility.

Hydro-Boost Troubleshooting Guide →