With Expertise Built In™, the OTR OTRFF40001 Fuel Filter keeps your engine ready for the long haul with a clean and contaminant-free fuel line. With a specialized design, this replacement fuel filter protects the fuel injection system by screening harmful particles before the liquid is combusted in the engine. Manufactured with sturdy materials to endure demanding system conditions and expand the interval time between each component change. OTR understands what it takes to repair and maintain Class 6-8 trucks, so they deliver solutions, making your job easier and more efficient. OTR warranties are comparable to or better than OE and top brands. All heavy duty truck parts offer the same form, function, and fit as the OE replacement parts. FleetPride is your First Click in Heavy Duty®.