Outfit your semi to be Ready for the Road Ahead™ with clean and efficient engine coolant, with the Donaldson BLUE® Spin-on Synthetic Coolant Filter. With a specialized filter, this replacement component works to capture harmful contaminants in the coolant before the particles cause damage to the engine. Manufactured with an easy-to-install design that collects debris, oil, dirt, and other pollutants. FleetPride is your First Click in Heavy Duty®.