Outfit semi to be Ready for the Road Ahead™ with enhanced filter performance, with the Donaldson P559106 Spin-On Liquid Filter Kit. Thanks to its specialized design, this replacement service kit allows operators to maintain oil, fuel, and lube filters so that each component can properly collect dirt, debris, and other contaminants. Crafted with top-tier filtration accessories to efficiently collect contaminants and particles. FleetPride is your First Click in Heavy Duty®.