
-6AN to -8 O-Ring Boss (ORB) Adapter
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This is a small adapter fitting that converts a -8 O-ring Boss port to a -6AN male line, the usual size for center-feed fuel lines and K-swap builds. It is machined from 7075-T6 aluminum rather than the more common 6061-T6, with a tapered bore for flow and a silver anodized finish. It comes with an ethanol-safe FKM o-ring and a flanged 7/8-inch hex to protect the mating part during tightening. It suits K-series fuel rail installs and any gas or E85 system that needs a -8 ORB port stepped down to -6AN.
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This adapter converts a -8 O-Ring Boss (ORB) port to a -6AN connection, so a -6AN fuel line can attach to fuel rails and other fuel system components with -8 ORB ports. It is the size typically used for center feed fuel lines and on K-swaps.
It is made from 7075-T6 aluminum, which adds strength over traditional 6061-T6 fittings. The interior is gently tapered for maximum flow. A silver anodized finish gives it a high-quality look and resistance to oxidation.
A flange at the base of the 7/8" hex helps protect against scratching the part it is threaded into during tightening. It comes with a -908 FKM o-ring that is compatible with gasoline, ethanol and E85. It works in gas, ethanol and gas/ethanol mix fuel systems.