Prepare your semi to be Ready for the Road Ahead , with the Prima Brake 4-Port 3 psi Emergency Relay Valve that contributes to fast and reactive air brakes. To quickly apply compressed air to the rear air brakes, this replacement component acts as a gateway between the service reservoir and the air brakes. Fashioned with a durable metal body to tolerate extreme pressures and regular use.
FleetPride is your First Click in Heavy Duty .
Accurate pressure sensing and activation mechanism with consistent and reliable braking performance
Delivers reliable detection of pressure drops
Provides an affordable solution to improve a vehicle's emergency brake system
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