A complete AD9-type air dryer assembly, 12V/75W, designed to remove moisture and contaminants from a truck's compressed air brake system before they can reach and damage critical components. It features a hard-seat purge valve, 1/2" NPT supply and delivery ports, and a 1/4" NPT control port, and comes complete with a mounting bracket kit and heater wire harness. It's a Bendix AD-9 style aftermarket replacement, with serviceable components including a desiccant cartridge kit, check valves, maintenance kit, and purge valve, and is cross-referenced to OEM/Bendix numbers 109685 and 65225.
