Description
280758-G - TR-3 INVERSION VALVE - 45/60 PSI
PART NUMBER(S):
Fleet Products: 280758-G | Replaces OE: Bendix: 280758, 281053 | Automann: 170.280758 | International: 664638C91 | GM: 3902813 | Caterpillar: 6D-1039 | Volvo: 8084521 | PAI: EM59370 | Tectran: 14449, TV280758
DESCRIPTION:
Model: Bendix TR-3 Inversion Valve
Vehicles: Trailers and vocational vehicles using compatible emergency or parking brake control systems
• Valve Type: Normally open pneumatic inversion valve
• Supply Port: One 1/4"-18 NPT
• Delivery Port: One 1/4"-18 NPT
• Control Port: One 1/8"-27 NPT
• Exhaust Port: Dust-shielded
• Inlet Opening Pressure: 45 PSI, descending pressure
• Exhaust Opening Pressure: 60 PSI, ascending pressure
• Constant-Supply Opening Pressure: 30 PSI
• Mounting Holes: Two 0.275" holes
• Operating Temperature: -40°F to 200°F (-40°C to 93°C)
• Function: Inverts control pressure for spring brake operation
Applications:
Designed for trailer emergency and parking brake systems requiring inverted pneumatic control. The valve responds to control-pressure changes to manage spring brake application and release during normal operation or air-system pressure loss.
CROSS-REFERENCE(S):
280758N, 280758RX, 280758X, 280758B1, 280758BXW, OR280758, OR280758X, 060-280758N, 280773, 281053N, 170280758, 23636, 2530000289779, 326V001, 36Z1406, 4L293, 49000229, 550100, 689174, 6D1039, 70689104, 745-280758N, 745280758, 745280758N, 80758, 85102791, 86883026, 87M1613, AV280758, BAN280758N, BBH-280758, BBH280758, BE280758, BEN-280758, BEN280758, BEN280758N, BER-280758, BETR3, BH280758, BP280758, BW 280758, BW 280758N, BW280758, BW280758N, BW280758X, BW281053, BWBW280758, BWR280758, BX280758, BX280758N, BX280758X, BX281053, BXR280758, BXR280758X, BXTR3, BXX280758, G3902813, MBW004308, MBW280758, MSBW280758, P280758, R280758, R280758X, R955280758X, R955280758XRI, TDAR955280758X, S-D821, SD821, X280758, X3902813, 5937, 59370, BD821GRP, 8235R955280758X, VTC-821D
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Confirm the 1/4" supply and delivery ports and 1/8" control port.
✔ Mount using the two 0.275" mounting holes.
✔ Connect each port according to the vehicle air brake schematic.
✔ Apply air-system-compatible sealant without allowing sealant inside the valve.
✔ Verify 45 PSI inlet opening, 60 PSI exhaust opening, and leak-free operation.
Warranty Information
