The Haltec HE-383 is a premium, professional-grade 6-1/16-inch straight metal valve extension engineered specifically for commercial trucks, buses, trailers, and off-road vehicles. Designed to solve the challenge of reaching deeply recessed or inner-dual wheel assemblies, this rigid extension provides effortless access for tire pressure checks, inflation, and routine maintenance.
Featuring a long 1-inch collar, the HE-383 securely stabilizes the extension on standard bore valve stems, preventing wobble and ensuring a dependable, leak-free seal under demanding driving conditions.

• Extended Reach: Offers a 6-1/16-inch effective length to easily clear deep rims, wheel simulators, and tight inner-dual wheel spaces.
• Long Collar Design: Equipped with a 1-inch stabilizing collar that provides maximum thread engagement and structural support at the base.
• Premium Construction: Forged from heavy-duty, nickel-plated brass to resist corrosion, rust, and harsh road debris.
• Universal Fitment: Utilizes a standard .305-32 thread size, making it fully compatible with all standard bore tire valve stems, caps, and inflation chucks.
• Rigid Straight Grip: The straight, unbent profile ensures direct-line access and maximum leverage when connecting air hoses or pressure gauges.

• Commercial semi-trucks and fleet trailers
• Dually pickup trucks (inner rear wheels)
• Motorhomes, RVs, and travel trailers
• Heavy equipment and off-road service vehicles

• Specifications