Prepare your semi to be Ready for the Road Ahead , with the Fleetguard HF35541 Hydraulic Cartridge Filter that purifies clean and reliable hydraulic fluid. To ensure a vehicle's hydraulic systems operate properly, this replacement filter catches dirt, debris, and a wide range of other contaminants. Fashioned with a durable metallic body to endure the challenges of everyday use. FleetPride is your First Click in Heavy Duty .