Description
2770255X – HYDROMAX BRAKE ASSIST UNIT (FORD)
PART NUMBER(S):
Fleet Products: 2770255X (Remanufactured) | Replaces OE: Bendix 108671, 2771558, 2771209, 2771293, 2770141, 2770181, 2770143, 2770215, 2770216, 2770221, 2770220 | Haldex RV2770255X | Other 2770255, 2770256, 2771559, CAST# 2771371, 2771293 | CARDONE 5C-29807
DESCRIPTION:
Model: Hydraulic Brake Assist Unit – Hydromax
Vehicles: Ford medium-duty trucks with hydraulic brake systems
• Bore size:1-3/4" (44.45mm)
• Port: 3/4-18 inlet (O-ring tube seat), 1/2 in ID outlet
• Mounting: Relay mounting lug
• Material: Sealed hydraulic unit
• Features: Push-on hose outlet
Applications: Designed for Ford trucks with hydraulic brake assist systems requiring a Hydromax booster with center-aligned ports. Common in vocational and fleet platforms with non-air brake configurations.
CROSS-REFERENCE(S):
2770255, RV2770255X
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Confirm inlet port is centered and matches 3/4-18 thread with O-ring seat
✔ Use hydraulic-grade thread sealant and always replace O-rings and rubber seals
✔ Push-on outlet hose must be fully seated and leak-tested under pressure
✔ Flush entire hydraulic system before and after installation to avoid contamination
✔ Torque mounting hardware and ports to OEM specifications
✔ If equipped with backup pump, verify wiring and activation under key-on conditions
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
