K279103K57 is a Bendix GSAT unloader valve kit, listed in the air brake unloader valve category. The unloader valve lets the compressor switch between building air and idling unloaded, which keeps pressure from running past what the system needs and eases the load on the compressor. A kit like this covers the small internals that wear first, so the valve can be restored without replacing the whole body.
Hissing around the valve, pressure that surges or will not settle, or a compressor that will not unload properly are the usual signs one needs attention. It is a genuine Bendix part from Pro Gear and Transmission. Call us to confirm proper fit for your compressor.
A factory handling fee of $20.00 per unit is added at checkout.
Features
Bendix unloader valve kit, GSAT
Listed as an air brake unloader valve
Lets the compressor switch between loaded and unloaded
Service kit for the internals that wear first
Genuine Bendix part