Description
Casting #2771563 & #2771565 Hydro-Boost | 1994 Chevy & GMC C/K 2500, 3500, Suburban
SKU: BP7334
Bexar Pro Components Grade
Special Order: Ships in 3-5 Business Days
Special Order: Ships in 3-5 Business Days
“Precision engineered to restore maximum stopping force for both high-cycle delivery fleets and heavy-duty towing applications.”
Restore original hydraulic assist to your fleet with the **Bexar Pro Hydro-Boost**. Specifically calibrated for the **1994 Chevrolet & GMC 2500 and 3500 series trucks**, as well as heavy-duty **Suburban** models, this unit is built to withstand rigorous vocational cycles. Utilizing high-pressure fluid from your power steering pump, this precision-match component for **Casting #2771563** and **#2771565** provides significantly higher clamping force than traditional vacuum boosters. Every unit is reverse-engineered to identify and upgrade original design weaknesses, ensuring a component built for long-term commercial durability.
Verified Casting Numbers
- 2771563
- 2771565
| Specification | Detail |
|---|---|
| Bore Diameter | 2.16-inch bore size |
| Booster Type | Hydraulic (Power Steering Powered) |
| Housing Material | Heavy-Duty Cast Iron |
| Stud Thread Size | 10 x 1.25mm |
| Components | 100% O.E. Quality Seals & Check Valves |
🛠️ Expert Installation & Shop Note
Based on our shop experience specializing in heavy-duty brakes since 1985:
- Pushrod Alignment: Precision alignment is critical for 1994 GM chassis. Even a slight offset during installation can lead to internal cup over-extension—the primary cause of immediate internal leaks and hard pedal symptoms.
- Hydraulic Contamination: Hydro-boost units are highly sensitive to sediment. We strongly recommend a complete power steering system flush with fresh fluid before installation to prevent debris from scoring the new internal check valves.
- Environment Protection: Every Bexar Pro unit features an exclusive rust-prohibitive finishing process, critical for vocational fleets operating in corrosive or salt-heavy environments.
Special Order Status
This commercial-grade unit is curated for specific 1994 chassis configurations. Please allow 3-5 business days for expert processing and secure transit from our Kirby facility.



