Description
BENDIX HYDROMAX MOTOR (STUD) – 12V ELECTRIC BRAKE MOTOR
PART NUMBER(S):
Fleet Products: 2771544X (Remanufactured) | OE: 2771320, 2771494, 2771320X
DESCRIPTION:
Model: Bendix Hydromax Motor (Stud-Type)
Vehicles: IHC, Chevrolet, GMC 1 3/4" (2" after 98') (1997 - 98' Topkick & KodiaK), FORD (1995 & earlier) Medium-Duty Commercial Trucks
• Voltage: 12V electric motor actuator
• Mounting: Stud-type Inlet: 3/4 - 18 thread w/ O'Ring tube seat, Outlet: 1/2" ID
• Connector: OE-style plug interface
• Compatibility: Hydromax booster systems RV2771320X, RV2771494X
• System: Hydraulic brake assist systems (Hydromax)
Applications:
Electric actuator motor for Bendix Hydromax booster units used in medium-duty trucks, buses, and vocational chassis. Designed to replace motors on 2771320-type brake assemblies. Ideal for fleets using legacy or OE-configured hydraulic-assist systems. Ensures consistent motor-driven hydraulic brake operation across IHC, GM, and Chevrolet platforms.
Used on Hydro-Max Booster Numbers:
2771558X
2772181X
2772184X
CROSS-REFERENCE(S):
2771320, 2771493, 2771544, 2772302, 2772876, 4278917, 745-R2771320R, 771494, BA2772302, BE2771494, BE2772302, BEPCO2771494X, BH2771320, BH2771493, BH2771494, BH2772302, BW2771494, BW2771544, BW2772302, BWBW2771544, MIRV2771320X, P2771494, R2771494, R2772302, RV2771320X, RV2771494X
A cross-reference listing means this part should be a suitable replacement for the part numbers listed. Please confirm all dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Disconnect battery power before removing old unit
✔ Confirm Hydromax booster type (stud vs. flange) prior to install
✔ Use OEM torque specs for securing motor housing
✔ Check for worn or corroded connectors and replace as needed
✔ Test motor operation with proper voltage input before road use
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
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Warranty Information
