Heavy duty truck and trailer air valves regulate the air necessary to sustain a steady airflow throughout the air system on your truck. It’s important to have quality air valves to keep your truck properly functioning on the road and avoid damage from contaminants.FleetPride offers several types of air valves for semi trailers from our diverse inventory of quality-built brands. Our large assortment includes trailer brake valves, air brake valves, trailer hand valves, air brake dash control valves, air compressor check valves, freightliner pressure protection valves, quick release valves, electromagnetic valves, spring brake control valves, pressure reducing valves, pressure control valves, air pilot valves, trailer hand valves, automatic moisture ejectors, and more. Browse our selection and see for yourself.