Ensure your semi is Ready for the Road Ahead™ with remarkable engine protection to keep it at its best, with the Donaldson Primary Round PowerCore® Air Filter. With a specialized collection system, this replacement air filter traps dirt, dust, and other contaminants before they enter the motor, resulting in cleaner air and enhanced vehicle performance. Crafted with durable and innovative materials to reduce how often each filter should be changed. FleetPride is your First Click in Heavy Duty®.