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Imperial · Air System
90660
In stock · ships from Knoxville
This is a brass compression union designed for 1/4-inch outside diameter nylon air brake tubing.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
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All confirmed applications for this part number.
Other applications
Other applications
Not intended for liquids or fuel; use only with approved air brake tubing.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
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It joins two pieces of 1/4-inch air line without flaring or heat, providing a secure, leak-free connection in truck and trailer air systems. Commonly used to repair damaged lines or extend air circuits for brakes, suspensions, air seats, and accessories. The fitting meets DOT pressure requirements and handles up to 150 psi.
Part Number: 90660
1/4 COMPRESSION UNNION
Vendor: Imperial
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside air system
