ORB to AN Adapter - Straight

The port with the flat face and the o-ring groove has its own rules, and rewards those who follow them.

Fuel rails, regulators, pumps, and dry sump hardware standardized on ORB because o-ring sealing is repeatable and reusable. The Finish Line Factory ORB to AN Adapter - Straight carries a male ORB (o-ring boss) on one side and a male 37 degree AN flare on the other, in AN sizes 4AN, 6AN, 8AN, 10AN, 12AN, 16AN with port sizes 04 ORB, 06 ORB, 08 ORB, 10 ORB, 12 ORB, 16 ORB. Ideal for fuel, oil, water, and air delivery, and for keeping the whole downstream system in one connection standard.

Benefits

• The odd port joins the AN system instead of dictating its own island of plumbing
• Sealing happens the way this thread standard actually works, not the way NPT habits assume
• Downstream, everything is familiar flares and familiar wrenches
• One correct adapter replaces a drawer of near-miss attempts

Features

• Port side: male ORB (o-ring boss), sizes 04 ORB, 06 ORB, 08 ORB, 10 ORB, 12 ORB, 16 ORB
• AN side: male 37 degree flare, 4AN, 6AN, 8AN, 10AN, 12AN, 16AN
• Seals via the o-ring compressing against the port's machined face
• Suits fuel, oil, water, and air delivery
• Sold as a single fitting

The Details

Thread standards differ in exactly one place that matters: where the seal lives. Here it lives at the o-ring compressing against the port's machined face, while the AN side stays a dry metal-to-metal flare, no sealant ever. ORB torque is modest; the ring seals, not the thread. Inspect and replace o-rings freely. Assemble the port side first, confirm it holds, then bring the AN plumbing to it with the body backed up by an aluminum wrench. When a port's identity is uncertain, measure before ordering: thread pitch gauges and calipers cost less than a stripped component, and the difference between tapered and parallel is visible in profile.

Kit Includes

• 1x ORB to AN Adapter - Straight (size per your selection)

Applications

• Port sizes: 04 ORB, 06 ORB, 08 ORB, 10 ORB, 12 ORB, 16 ORB; AN sizes: 4AN, 6AN, 8AN, 10AN, 12AN, 16AN
• Common uses: adapting OEM and specialty ports to AN plumbing on fuel, oil, coolant, and air systems
• Mates to female AN hose ends in the matching size downstream