Ensure your semi truck is Ready for the Road Ahead™ with clean and dry air brakes, with the Baldwin BA5379 Spin-On Coalescent Air Dryer Filter. Due to its ability to capture harmful contaminants such as dirt, debris, and oil, this replacement air dryer is the ideal option to keep brake systems and air compressors at optimal condition. Constructed with top-quality materials to offer an extended service life. FleetPride is your First Click in Heavy Duty®.