5 1/2 truck valve extensions are made of nickel plated brass and include a long skirt and a high heat cap. Made for use with trucks or buses to extend existing tire valve, these extensions have a .305-32 thread size and an overall effective length of 5 1/2. Product Features:5 1/2 total effective lengthHigh heat cap with a thread size of .305-37For use with trucks or buses
