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Acuity - 5/16" Quick-Connect to -8 O-Ring Boss (ORB) Adapter, 100mm flange to tip

Acuity - 5/16" Quick-Connect to -8 O-Ring Boss (ORB) Adapter, 100mm flange to tip


Category: Adapters
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Regular price $36.00
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Acuity - 5/16" Quick-Connect to -8 O-Ring Boss (ORB) Adapter, 100mm flange to tip

  • Fits in all fuel rails and other fuel system components that accept -8 ORB fittings
  • Adapts -8 ORB ports to 5/16" Quick-Connect for use with many Honda/Acura fuel lines
  • 7075-T6 Aluminum construction for added strength over traditional 6061-T6 fittings 
  • Gently tapered interior for maximum flow
  • Anodized for durability
  • Flanged hex to help avoid wrench damage during installation
  • Supplied with ethanol-safe FKM o-ring
  • 7/8" Hex Drive

ACUiTY's 5/16" Quick-Connecto to -8 O-Ring Boss (ORB) adapter is made from 7075-T6 aluminum for strength with a gently tapered interior for maximum flow. They are particularly useful when running an aftermarket Honda K-Series compatible fuel rail with a stock fuel line. A silver anodized finish ensures high cosmetic quality and resistance to oxidation. These were designed for use with ACUiTY's K-Series Fuel Rails, but they are perfect for use in any gas, ethanol, or gas/ethanol mix fuel system where a -8 ORB port must be adapted for a 5/16" Quick-Connect style fuel line (which is a common style used on the fuel rail for many Honda K-Series vehicles except for vehicles with port injection). The fitting comes supplied with a -908 FKM o-ring that is gasoline and ethanol (and E85, etc) compatible. Additionally, each fitting is designed with a flange at the base of the 7/8" hex to help protect against scratching the part the fitting is being threaded into during tightening. 

This is one of 2 similar fittings ACUiTY produces. This design (1913-F07) is 100mm long from the flange to the tip, while ACUiTY's 1913-F07 fitting is 62mm long from flange to tip, for applications needing a less reach.

If replacement o-rings are needed, order ACUiTY part number 1913-F08 (which includes 5pcs of -908, FKM O-Rings).

Designed to fit standard -8 o-ring boss (ORB) ports found on ACUiTY's K-Series fuel rails as well as many other aftermarket fuel rails and fuel pressure regulators. This fitting is a great choice when using ACUiTY's 1913 fuel rails on an 8th Gen Civic Si/R.

Shipping & Delivery

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations. For international orders, please Contact Us. If you select US shipping rates and are shipping internationally, please be advised you will be contacted to compensate the difference in shipping fees.

Processing takes about 3 to 5 business days before your order ships. We do not process or ship orders on weekends. If you order an item that's on backorder, we will reach out with an estimated arrival time. If you have any questions about shipping make sure to email us at or call our reps today at 732-638-5268.

If by any chance, your package that has been delivered by the carrier is lost/stolen, YOU (THE BUYER) are responsible for working with the carrier and us, Tri-State Motorsports to recover your package. You must contact us and the shipping company within 48 hours of delivery for lost/damage claims. You are covered by the basic insurance amount APPROVED by the shipping center. We DO NOT refund or reship product for claims that are denied by the shipping company.