Air dryers are installed between the air compressor and the "wet tank" on heavy-duty trucks and other commercial vehicles with air brakes. The air dryer filters out water vapor, oil vapor, and other contaminants before reaching the air tanks and valves. This helps prevent freeze-up during the winter and extends the life of air valves on the truck.
Most air dryers feature a replaceable desiccant cartridge to make maintenance easier, and kits to service the air dryer most common are the purge valve kit, heater kits, and check valve kits.
If you are not sure what part you need for your air dryer, please contact us. To be sure we quote you the correct part, be sure to have your truck serial number handy.