Update your semi truck with improved tire and wheel efficiency, with the Hendrickson TIREMAAX® Rotary Union Kit that ensures you're Ready for the Road Ahead™. Thanks to its ability to transfer compressed air into tires, then seal it in, this assembly is the ideal option to prepare commercial vehicles for long and rugged journeys. Crafted with tight-sealing components to prevent air leaks and potential contamination of compressed air. FleetPride is your First Click in Heavy Duty®.