Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.
Imperial · Air System
90686
In stock · ships from Knoxville
This is a brass male straight connector designed for air brake compression systems.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 3 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Designed for use with SAE J844 Type A or B nylon air brake tubing.
Part data verified against 1 catalog sources
Numbers this part supersedes or interchanges with. Showing 5 of 5.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It provides a direct, secure connection between 1/2 inch outside-diameter nylon tubing and a 3/8 inch male National Pipe Thread (NPT) port. The fitting includes pre-applied PTFE-based pipe sealant on the threads for leak-free installation and exceeds DOT pressure requirements for heavy-duty truck and trailer air brake, air suspension, and accessory lines.
Part Number: 90686
1/2 INCH TO 3/8 BRASS FITTING
Vendor: Imperial
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside air system
