New Hydromax booster 2772114 for industrial equipment and commercial truck fleets.

New Hydromax booster for Isuzu HTR HVR HXR medium duty trucks.

Close-up of Hydromax pedal rod showing Rod Code 72734 for GMC and Isuzu trucks.

Rear view of Hydromax Booster 2772114 showing the flow switch port and mounting studs.

New oval O-rings included for Hydromax backup pump motor seal.

Casting number 2772114 and 0204745907 on Hydromax booster housing.

New Hydromax Booster for GMC C4500 C5500 Topkick and Chevy Kodiak Casting 2772114.

NEW Hydromax Booster Casting #2772114 | Rod Code 72734 | GMC Chevy Isuzu

Name: NEW Hydromax Booster Casting #2772114 | Rod Code 72734 | GMC Chevy Isuzu
Brand: Bexar Pro Componets
SKU: 52740249
Availability: InStock

$400.00

Fitment Lookup:

Select your vehicle to verify compatibility before ordering.

SKU: 52740249 Categories: Hydromax Brake Boosters, VIEW ALL PRODUCTS Brand: Bexar Pro Componets

Casting #2772114 Hydromax Booster | Multi-Fit RV GMC, Chevy, International, Ford & Industrial

SKU: 52740249

Bexar Pro Components Grade

Bexar Pro Components: Engineering Reliable Braking Solutions for Medium-Duty Fleets.

Restore your vehicle’s braking power with this brand new Hydromax Brake Booster from Bexar Pro Components. This direct replacement unit is specifically engineered for heavy-duty fleet reliability in GMC Topkick, Chevy Kodiak, and Isuzu H-Series medium-duty trucks that utilize the flat end pedal rod (Code 72734).Built for the rigorous demands of commercial transport and industrial equipment, this booster ensures consistent hydraulic assist and uncompromised driver safety across your entire fleet.

Technical Specifications

Spec Identifier	Detail	Application Note
Condition	NEW	Non-remanufactured, factory-fresh hardware.
Body Casting #	2772114 / 0204745907	Cross-ref for GM #19168854 & GM #19286731.
Pedal Rod Code	72734 (Flat End)	Pre-installed; essential for Topkick/Kodiak linkage.
Sealing Hardware	Oval O-Rings Included	Ensures high-pressure seal for the backup pump motor.

Verified Vehicle Application Search

GMC & Chevrolet

C4500, C5500 Series
C6500, C7500 Series
Topkick & Kodiak Models
OEM Interchange: 19168854, 19286731

Isuzu & Industrial

Isuzu HTR, HVR, HXR Series
Commercial Vocational Chassis
Heavy-Duty Industrial Equipment

⚠ Expert Installation & Field Note

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

Pedal Rod Verification: Verify that your original pedal rod matches Code 72734 prior to installation. Proper linkage alignment is critical to prevent side-loading internal piston seals.
Hardware Note: New Oval O-rings are included for the backup pump motor. Some original mounting studs or flange nuts may need to be cleaned and reused depending on your specific GM chassis year.
Core Refund: Return your old, like-for-like core within 90 days to receive a $50.00 refund. This helps maintain high-quality casting availability for the medium-duty community.