Update your semi with supreme engine protection to keep it at its best, with the Donaldson Primary Round PowerCore® Air Filter that ensures you're Ready for the Road Ahead™. This replacement air filter system traps dust, dirt, and other contaminants before they enter motor, leading to 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®.