Equip your semi with essential parts with Expertise Built In™, like the OTR OTRFF40006 Fuel Filter that provides a clean and contaminant-free fuel line. By utilizing a specialized design, this replacement fuel filter protects the fuel injection system by seizing harmful contaminants before the liquid is combusted in the engine. Built with rugged materials to withstand 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®.