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Update your semi with fast and reactive rear air brakes, with the Prima Brake 4-Port 4.5 psi Relay Valve that ensures you're Ready for the Road Ahead. 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.
Provides reliable detection of pressure drops
Reliable pressure sensing to provide dependable braking performance
Simplifies the job of connecting the valve to the air brake lines
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