Prepare your semi to be Ready for the Road Ahead™, with the Donaldson Duramax® Spin-On Hydraulic Filter that contributes to optimal hydraulic fluid performance. By utilizing an ultra-fine filter, this replacement component captures hydraulic contaminants before they cause potential pressure leaks or corrosion from occurring. Constructed with a durable body to extend the service life and reduce the frequency of filter changes in semis or tractors. FleetPride is your First Click in Heavy Duty®.