Relay Valves for Peterbilt, Kenworth, Freightliner, International, Volvo, Western Star, Hino, Caterpillar, Mack, and other Big Rigs.

R-12 Air Brake Relay Truck Trailer Valve - Vertical Ports
R-12 Air Brake Relay Truck Trailer Valve - Vertical Ports
Relay Valves
$57.68
2 Port Single Control Line Tractor/Trailer Relay Valve
2 Port Single Control Line Tractor/Trailer Relay Valve
Relay Valves
$57.68
RG2-2 Port Truck Trailer Air Brake Relay Valve
RG2-2 Port Truck Trailer Air Brake Relay Valve
Relay Valves
$49.87
FF2 Full Function Trailer Brake Valve - 3/4" Reservoir
FF2 Full Function Trailer Brake Valve - 3/4" Reservoir
Relay Valves
$89.74
FF2 Full Function Trailer Brake Valve - 3/4" Reservoir
FF2 Full Function Trailer Brake Valve - 3/4" Reservoir
Relay Valves
$89.74
R-12 Relay Valve 3/8" Delivery
R-12 Relay Valve
Relay Valves
$59.78
R-12 Relay Valve 1/2" Delivery
R-12 Relay Valve 1/2" Delivery
Relay Valves
$59.87
R-12P 4 Port Pilot Relay Valve
R-12P 4 Port Pilot Relay Valve
Relay Valves
$88.64
R-8 Relay Spring and Service Brake Valve - 90 Degrees Service Port
R-8 Relay Spring and Service Brake Valve - 90 Degrees Service Port
Relay Valves
$79.84
4 Port Trailer Relay Valve - 3/8" Delivery Port
4 Port Trailer Relay Valve - 3/8" Delivery Port
Relay Valves
$59.99
R-6 Style Service Relay Valve - Vertical Ports
R-6 Style Service Relay Valve - Vertical Ports
Relay Valves
$59.99
Control Line Relay Valve - 3/8" Ports
Control Line Relay Valve - 3/8" Ports
Relay Valves
$69.99
R-8P Style Pressure Equalizing Relay Valve
R-8P Style Pressure Equalizing Relay Valve
Relay Valves
$89.99
R-6 Style Brake Relay Valve
R-6 Style Brake Relay Valve
Relay Valves
$59.99
2 Port Anti-Compounding Relay Valve
2 Port Anti-Compounding Relay Valve
Relay Valves
$89.99