Heavy-Duty Truck Air System Parts

A high-quality Controlled Response height control valve. With top exhaust port, middle air spring port, and bottom supply port. Built to extend com...

Patented FFABS Valve with integral Spring Brake Control function. Pre-installed Reservoir Nipple with swivel and lock-nut feature assures easy serv...

Height 4-19/64 in (10.92 cm). Length 7-35/64 in (19.18 cm). 1/2" Res. Mount, 12V, 3/8" Ports. Delivery Port 6 x 3/8". Service Brake Delivery Ports ...

OPPENING PRESSURE 95 PSI. CLOSING PRESSURE 90 PSI. Ports 1/4" NPT.

Automatically seals off tractor's air supply to the trailer in the event of a breakaway or leak. Made of premium quality materials for durability a...

Operates in conjunction with the compressor unloading mechanism. Automatically controls the air pressure in the air supply system between the desir...