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Automann · Air System
177.13B6210
In stock · ships from Knoxville
This is a brass push-to-connect union fitting designed to join two sections of 5/8" air brake tubing.
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Other applications
Fits any air line that uses 5/8" nylon tubing; commonly installed on air supply lines, spring brake circuits, and trailer air connections.
Part data verified against 3 catalog sources
Numbers this part supersedes or interchanges with. Showing 14 of 14.
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It is used in heavy-duty truck and trailer air systems to couple nylon air lines for supply, control, or spring brake circuits. The fitting meets DOT 49 CFR 571.106 and SAE J1131 ‘Hot Pull’ requirements, ensuring reliable retention under pressure and vibration. Replace it when the original union leaks, corrodes, or during air line repairs.
Part Number: 177.13B6210
BRASS PLC UNION 5/8
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
