Workhorse Automotive high quality heavy duty TR573 replacement commercial truck valve stems with flow through valve stem caps (unassembled). Increase safety, save time and money with the inflate through valve caps for the TR573. No need to unscrew the valve cap to inflate, deflate or check pressure. Simply remove the current valve cap, screw on Inflate Through Valve Cap until snug. Conforms to SAE JI205-JI206, performance criteria for aging, heat and ozone resistance. Each valve stem comes with a high quality metal cap with O-ring for an extra secure fit. Valve stem is fully brass and comes with a high temperature rated nickel plated brass core, ozone resistant EPDM rubber grommet, washer and nut. Tubeless valve stems for 22.5″ wheels. Pack of 10.