Product Details: The Donaldson Fuel Filter Kit is the perfect choice for consistent performance in the real-world operating environment. This kit is manufactured with high-quality materials for durability and longevity and provides reliable performance over a long service life. The kit includes a primary fuel filter, a secondary fuel filter and a water separator, all designed to keep your engine running smoothly and efficiently. The filters are designed to trap dirt, debris and other contaminants while allowing clean fuel to flow through to the engine. The water separator helps to remove water from the fuel, ensuring that your engine is running on clean fuel. FleetPride is your First Click in Heavy Duty®.