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Knox Trailers · Air System
NP68-8-6
In stock · ships from Knoxville
This is a brass push-to-connect (pushlock) male connector fitting used in air brake and air suspension systems on heavy-duty trucks, trailers, and mobile equipment.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
Other applications
Other applications
Pushlock fittings are used across many makes and models; always verify tubing OD and thread size before replacement.
Part data verified against 2 catalog sources
Numbers this part supersedes or interchanges with. Showing 6 of 6.
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It connects 3/8-inch outside diameter nylon air brake tubing to a 1/2-inch male NPT threaded port without clamps or special tools. These fittings are typically replaced when a connection leaks, a fitting becomes damaged, or during air line repairs. The fitting meets DOT FMVSS 571.106 and SAE J2494 performance standards, ensuring reliable air flow and a quick, leak-proof installation.
Part Number: NP68-8-6
PUSHLOC FITTING, CONNECTOR
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
