Prepare your semi truck to be Ready for the Road Ahead™, with the Baldwin BA5374 Spin-On Desiccant Air Dryer Filter that provides clean and dry air brakes. This replacement air dryer works to capture harmful contaminants such as dirt, debris, and oil, and prevent the particles from causing damage to air brakes or compressors. Engineered with top-quality materials to offer an extended service life. FleetPride is your First Click in Heavy Duty®.