
Image is for illustration purposes only. Actual part may vary.
91200-
This is a #6 (3/8″) brass union fitting for heavy-duty truck and trailer air systems. It connects two pieces of 3/8″ nylon air line together in a straight, push-to-connect joint. Use it to repair a damaged connector or join lines when routing air circuits for brakes, suspension, or accessory pneumatics. Designed for D.O.T. air brake tubing, it helps eliminate leaks when installed correctly.
Fits any vehicle that uses standard 6AB push-to-connect unions for air brake and accessory air systems.
Part Number: 91200-
A/B UNION
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system