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-6AN to -8 O-Ring Boss (ORB) Adapter

-6AN to -8 O-Ring Boss (ORB) Adapter

5(6 ratings)

Best price now

$16.00at ACUITY InstrumentsChecked Nov 9

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Price facts

  • Last seen at $16.00 at ACUITY Instruments on Nov 9.
  • Our take on the -6AN to -8 O-Ring Boss (ORB) Adapter

    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.

    Best forK-series fuel rail installsCenter-feed -6AN fuel linesE85 and flex-fuel systemsBuilders stepping a -8 ORB port down to -6AN
    Pros
    • 7075-T6 aluminum is stronger than typical 6061-T6 fittings
    • Tapered interior supports good flow
    • Anodized finish resists oxidation
    • Flanged hex helps prevent scratching the port
    • FKM o-ring is compatible with gas and ethanol
    Cons
    • Only adapts -8 ORB to -6AN; no other size combinations
    • Replacement o-rings are a separate ACUiTY part
    • Single fitting, not a kit

    -6AN to -8 O-Ring Boss (ORB) Adapter prices at every store

    • ACUITY InstrumentsNew

      In stockReturn policy

      $16.00Checked Nov 9
      Visit ACUITY Instruments

    About the -6AN to -8 O-Ring Boss (ORB) Adapter

    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.

    Part number
    1913-F03
    Material
    7075-T6 aluminum
    Finish
    Silver anodized
    Thread ends
    -8 ORB to -6AN
    Hex drive
    7/8"
    O-ring
    -908 FKM, gasoline and ethanol compatible
    Fuel compatibility
    Gas, ethanol, E85 and gas/ethanol mixes
    Fitment
    Standard -8 ORB ports on ACUiTY K-Series fuel rails, many other aftermarket fuel rails and fuel pressure regulators
    Replacement o-rings
    ACUiTY part number 1913-F08 (5 pcs of -908 FKM o-rings)
    In the box
    1 x -6AN to -8 ORB adapter

    Questions and answers

    What does this adapter connect?
    It threads into a -8 O-ring Boss port and gives you a -6AN male end for a -6AN fuel line. That is the common setup for center-feed lines and K-swaps.
    Is it E85 compatible?
    Yes. It ships with a -908 FKM o-ring rated for gasoline, ethanol and gas/ethanol mixes such as E85.
    Why 7075-T6 instead of 6061-T6?
    7075-T6 is a stronger aluminum alloy, so the fitting holds up better under torque and pressure than the usual 6061-T6 adapters.
    What size wrench does it take?
    The hex is 7/8 inch. A flange at its base shields the port surface while you tighten.
    What if the o-ring wears out?
    ACUiTY sells replacements as part 1913-F08, a set of five -908 FKM o-rings.
    Does it fit ACUiTY K-Series fuel rails?
    Yes, it was designed for them, and it also works in any fuel system with a -8 ORB port that needs a -6AN line.
    Where is the -6AN to -8 O-Ring Boss (ORB) Adapter cheapest?
    At ACUITY Instruments, for $16.00, as of our latest check.
    What do buyers say about the -6AN to -8 O-Ring Boss (ORB) Adapter?
    Rated 5 out of 5 from 6 ratings.

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