Product Details: Equip your semi to be Ready for the Road Ahead™, with the Donaldson P555776 Secondary Spin-On Fuel Filter, a key device to keeping a clean and contaminant-free fuel line. Thanks to its specialized design, this replacement fuel filter protects the fuel injection system by collecting harmful contaminants before the fuel is combusted in the engine. Engineered with robust materials to withstand demanding conditions and extend the interval time between each component change. The air conditioning and heating system in heavy duty trucks has a major impact on drivers’ safety and comfort level. Whether you are looking for A/C compressors, condensers, driers, freon, or blower motors, FleetPride has the part you need to make sure your air conditioning and heating are well maintained. Keep your heavy duty fleet operations working as productively and efficiently as possible by finding the right air conditioning and heating part for you. FleetPride is your First Click in Heavy Duty®.