- What does -3AN to -4 ORB mean?
- The -3AN side is a 37-degree male flare for 3/16 inch (3AN) hose ends. The -4 ORB side is a 7/16-20 O-ring boss port thread, common on oil pumps, filters and coolers.
- Is the O-ring included?
- Yes. The adapter ships with an O-ring for the ORB end, which seals against the port face rather than on the threads.
- Can I use it for brake lines?
- No. It is intended for oil, fuel and coolant plumbing. Brake systems need components rated for that pressure and fluid.
- Will it fit my oil cooler?
- Only if the cooler has a -4 ORB port and your line ends in a 3AN female flare. Check both thread sizes before ordering.
- What is it made of?
- 6061 aluminum with a black anodized finish. It is light and corrosion resistant but softer than steel.
- Where is the Vibrant 16818 -3AN Male Flare to -4 ORB Male Straight Adapter w/O-Ring cheapest?
- At eBay, for $24.84, as of our latest check.
- Where can I buy the Vibrant 16818 -3AN Male Flare to -4 ORB Male Straight Adapter w/O-Ring?
- 2 stores we checked sell it, including Amazon, eBay.