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Automann · Air System
177.13B626
In stock · ships from Knoxville
This is a 3/8-inch brass push-to-connect union fitting used to join two sections of nylon air brake tubing.
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Push-connect style fits standard 3/8 in. nylon lines; not vehicle-specific. Verify tube size before ordering.
Part data verified against 5 catalog sources
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It's commonly found in air systems on heavy trucks and trailers, allowing quick, leak-free connections without wrenches or clamps. You replace it when a fitting becomes damaged, corroded, or when modifying air lines.
Part Number: 177.13B626
3/8 UNION
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
