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Automann · Air System
177.13B6212
In stock · ships from Knoxville
This is a 3/4-inch brass push-to-connect union fitting for heavy-duty truck and trailer air brake systems.
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Verified fitment for 5 applications
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All confirmed applications for this part number.
Other applications
Other applications
Universal push-to-connect union; fits any heavy-duty truck or trailer using 3/4 inch SAE J844 nylon air brake tubing. Not vehicle-make specific.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 7 of 7.
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It securely joins two lengths of SAE J844 nylon tubing without tools, maintaining a DOT-compliant, leak-free connection. Commonly used to extend or repair air lines on brake, suspension, and auxiliary circuits; replace when a union leaks, cracks, or when tubing is being re-routed.
Part Number: 177.13B6212
BRASS PLC UNION 3/4
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
