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Automann · Air System
177.13B624
In stock · ships from Knoxville
This is a brass push-to-connect union fitting used to join two pieces of 1/4-inch nylon air brake tubing (SAE J844) on heavy‑duty trucks and trailers.
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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 for any vehicle using 1/4 inch SAE J844 nylon tubing in its air brake system. Always verify tubing size before replacement.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 17.
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It creates a secure, leak‑free connection without clamps or special tools, using a multi‑tooth collet that grips the tubing tightly. The fitting is typically replaced when a union becomes damaged, starts to leak, or when repairing or extending an air line. It complies with DOT FMVSS 571.106 and SAE J1131 requirements, making it suitable for air brake systems where reliable air connections are essential.
Part Number: 177.13B624
BRASS PLC UNION 1/4
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
