.453 x 2-1/4" Bolt-In Tire Valve Brass For Ford “F" Series Trucks With 16" Dual WheelsTire valve stems fit into wheel rims to allow air to pass into tires for inflation. Also called wheel valve stems tire valves have a tube like body with an inner core that seals the valve. They typically include a cap for covering the valve to block out debris and moisture. These tire valves are commonly used as replacements for leaky weathered or cracked valves. Leaky valves can sometimes be repaired by replacing the tire valve core without replacing