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Aeromotive
Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)

Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)

Best price now

$15.49at AmazonObserved at 5:04 AM

66% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

  • Lowest price today: $15.49 at Amazon (checked Nov 9, 2026).
  • Checked at 13 stores.
  • Our take on the Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)

    The Aeromotive 15681 is a swivel adapter fitting that joins a #8 AN ORB port to a #6 AN ORB line, letting you step down a fuel system without a hard 90-degree bend. The swivel nut spins freely so you can clock the hose end before tightening, which matters in tight engine bays. It is aimed at racers and builders plumbing fuel lines, and it sits in Aeromotive's premium tier against generic brass and aluminum adapters. Reviewers of this class of fitting praise the machined threads and sealing, and the main complaints are cost and the need to use the right O-ring and torque.

    Best forFuel system builders stepping #8 down to #6Racers plumbing tight engine baysAN ORB port conversionsTrack and street performance builds
    Pros
    • Swivel nut lets you clock the hose before tightening
    • Machined to tight tolerances for clean thread engagement
    • Aluminum body keeps weight low
    • Aeromotive's fuel-system track record backs the part
    • Step-down design avoids extra adapters
    Cons
    • Premium price versus generic AN adapters
    • O-ring and torque specs must be followed or it leaks
    • Only one size combination per part number
    • Not for high-pressure hydraulic use

    Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681) prices at every store

    • WheelFlipNew

      In stock

      $25.77Observed at 5:06 AM
      Visit WheelFlip
    • Muellerpart.comNew

      In stockReturn policy

      $39.95Verified
      Visit Muellerpart.com
    • SpeedFactoryRacingNew

      In stockReturn policy

      $39.95Verified
      Visit SpeedFactoryRacing
    • Hand Crafted PerformanceNew

      In stock

      $41.04Verified
      Visit Hand Crafted Performance
    • Trick Tuning & PerformanceNew

      In stockReturn policy

      $42.48Verified
      Visit Trick Tuning & Performance
    • Coastal Race PartsNew

      In stockReturn policy

      $45.60Verified
      Visit Coastal Race Parts
    • MAD Racing PartsNew

      In stockReturn policy

      $47.20Verified
      Visit MAD Racing Parts
    • Titan MotorsportsNew

      In stockReturn policy

      $47.20Verified
      Visit Titan Motorsports
    • JM Auto RacingNew

      In stockReturn policy

      $47.20Verified
      Visit JM Auto Racing
    • TurbochargedracingNew

      In stockReturn policy

      $47.20Verified
      Visit Turbochargedracing
    • Rocket Performance Racing ProductsNew

      In stockReturn policy

      $47.20Verified
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    • Burlile Performance ProductsNew

      In stockReturn policy

      $52.44Verified
      Visit Burlile Performance Products
    • AmazonNew

      Availability unknown

      As an Amazon Associate, Deal.ai earns from qualifying purchases.

      $15.49Observed at 5:04 AM
      Visit Amazon

    Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681) price history

    Lowest price we've seen: $15.49 on Nov 9 at Amazon. Tracked across 2 stores since Nov 9.

    What reviewers say

    Owners of Aeromotive swivel fittings generally report clean threads, easy clocking and leak-free sealing when installed with the correct O-ring and torque. Complaints center on cost and on leaks traced to reused or wrong O-rings.

    What people mention
    • Thread qualityPraisedOwners say the threads are cut cleanly and start easily without cross-threading.
    • Swivel actionPraisedThe spinning nut lets builders aim the hose end before final tightening.
    • SealingMixedMost report leak-free joints, but some leaks trace to wrong or reused O-rings.
    • ValueCriticisedBuyers call it pricey compared with generic AN adapters.

    From Muellerpart.com

    • Swivel ORB-08 to ORB-06 adapter fitting
    • Aeromotive 15681
    • Made by Aeromotive, a high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components
    • Built using aerospace tolerances and procedures
    • Backed by three generations of track experience
    • Meticulous approach to engineering

    About the Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)

    Aeromotive is a true high performance aftermarket manufacturer specializing in fuel delivery and fuel delivery components. Utilizing aerospace tolerances and procedures, three generations of track experience, and a meticulous approach to engineering, Aeromotive Fuel Systems has become the absolute pinnacle of performance fuel delivery.

    Specifications

    Orb Size
    ORB-06

    Questions and answers

    What does #8 ORB to #6 ORB mean?
    It adapts a #8 (3/4-16) O-ring boss port to a #6 (9/16-18) ORB line. The ORB thread seals with an O-ring against a flat port face, not with tape.
    Does it need an O-ring?
    Yes. ORB fittings seal on an O-ring at the port face. Use the correct size and replace it if it is flattened or nicked.
    Can I use it on brake or power steering lines?
    It is intended for fuel and fluid plumbing in performance builds. Check the pressure rating before using it anywhere beyond that.
    Is it a straight or angled fitting?
    It is a straight swivel adapter. The nut rotates so you can position the hose end, but the body does not bend.
    Will it fit a standard AN hose end?
    The #6 side takes standard #6 AN hose ends. Match the hose end brand and style to avoid thread or seat mismatch.
    Where is the Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681) cheapest?
    At Amazon, for $15.49, 66% under what the other stores charge, as of our latest check.
    Where can I buy the Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)?
    13 stores we checked sell it, including WheelFlip, Muellerpart.com, Amazon, SpeedFactoryRacing, MAD Racing Parts.

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    Buying guides that pick the Aeromotive #8 ORB/#6 ORB Swivel Adapter Fitting (AFS15681)

    • Best AN ORB fuel line fittings