Description
2772184X – HYDROMAX BRAKE ASSIST UNIT (THOMAS SCHOOL BUS)
PART NUMBER(S):
Fleet Products: 2772184X (Remanufactured) | OE: 2770255, 2771558, E6HT2B195AA
DESCRIPTION:
Model: Hydraulic Brake Actuator – Hydromax
Vehicles: Thomas Built Buses (Saf-T-Liner EFX, HDX) Topkick & Kodiak (C6 & C7H042) w/ 8-14M FA & 15-23M RA and Ford medium-duty platforms
• Inlet Port: 3/4"–18 thread with O-ring tube seat (centerline aligned)
• Outlet Port: 1/2" ID for push-on hose connection
• Configuration: Designed for front or rear axle hydraulic brake assist systems
• Function: Delivers power-assisted braking performance via hydraulic actuation
Applications: Engineered for Thomas Built school buses and Ford medium-duty vehicles using Hydromax brake boosters. Delivers consistent braking response, extended brake life, and reliability in fleet-duty conditions where hydraulic braking systems are used.
CROSS-REFERENCE(S):
1676754C1, 2770141, 2770142, 2770143, 2770181, 2770182, 2770215, 2770216, 2770220, 2770221, 2770228, 2770229, 2770238, 2770240, 2770242, 2770255, 2771293, 2771371, 2771558, 52-9803, 529803, 5396-RV2770255X, 767653032283, E6HT2B195AA, HDX RV2770255X, MBIRV2770255X, MIDRV2770255X, RV2770255X, RV2771558X, ZZRV2770255X
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and mounting configurations match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Ensure inlet port is aligned with system centerline and uses 3/4-18 thread with O-ring seat
✔ Push-on 1/2" hose connection must be fully seated and verified leak-free under pressure
✔ Replace sealing O-rings and inspect all fittings before installation
✔ Use hydraulic-grade thread sealant on all port fittings
✔ Perform system flush before and after install to prevent contamination
✔ Torque all ports to OEM specification and conduct final pressure test before operation
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
