The Fleetguard 5.40" Spin-On Water Filter is designed to improve performance and extend coolant service life. This filter is designed to reduce wear and maintain effective heat transfer, while also providing a convenient and reliable method for delivering supplemental coolant extenders into the cooling system. The filter is easy to install and maintain, and is designed to provide superior filtration and protection for your engine. FleetPride is your First Click in Heavy Duty®.