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

Tractor 4 Port Bobtail Brake Proportioning Standard Relay Valve
Tractor 4 Port Bobtail Brake Proportioning Standard Relay Valve
Bobtail Proportioning
$69.78
RT4 Multi-Function Trailer Spring Brake Control Relay Valve
RT4 Multi-Function Trailer Spring Brake Control Relay Valve
Bobtail Proportioning
$78.34
R-12 Relay Brake Valve - 1/2" Delivery
R-12 Relay Brake Valve - 1/2" Delivery
Bobtail Proportioning
$49.87