Update your semi with supreme engine protection to keep it at its best, with the Donaldson Primary Obround PowerCore® Air Filter that ensures you're Ready for the Road Ahead™. 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®.