Get your semi Ready for the Road Ahead™ with optimal hydraulic fluid performance, with the Donaldson Duramax® Spin-On Hydraulic Filter. With an ultra-fine filter, this replacement component captures harmful contaminants in the hydraulic fluid, preventing potential pressure leaks and corrosion from occurring. Crafted with a sturdy 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®.