- Special Notes
- Product Description
- Manufacturer: Bendix
- Part Number: 289144X
- Condition: Remanufactured
- Bendix reman valves have the same warranty as new valves
- Nominal hold off pressure = 4 psi
- Nominal equalizing pressure = 60 psi
The LQ-4 ratio valve was designed to replace the LQ-2 limiting and quick release valve in the front axle delivery line of vehicles meeting FMVSS 121.
During normal service brake applications, the LQ-4 automatically reduces application pressure to the front axle brakes, however, as brake application
pressure is increased the percentage of reduction is decreased until at approximately 60 psi (depending upon valve design) full pressure is delivered.
The valve is available with several different "hold-off" pressures which prevent the front brakes from operating until the "hold-off" pressure is exceeded.
The obsolete LQ-3 Ratio Valve appears identical to the LQ-4 with minor differences in porting size.
Cross References: 289144, 102119, 289149, 289149X, AD80150, AD80152, 287279, 289147, 40863109, 490083, D7HS2A208BA,
D8HZ2A208A, 2022484, 795363, 358434, 4204839, K289144, 20QE1275R, 20QE2148, 20QE3129R, 410002800, 2022484, 289144B1,
540171C91, 68569BX, 5007M5, 17345006, 801504, LAV3625, 034036, 1092916, 1582223, G2022484
A cross reference listing means that this valve is a suitable replacement for the part numbers listed. Some changes in air line plumbing may be required.