Acuity -8 O-Ring Boss (ORB) Plug

$11.00 USD

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SKU: 1913-F02

Fits: 8th Gen Honda Civic

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 regulator

ACUiTY's -8 O-Ring Boss (ORB) plug is made from 7075-T6 aluminum and has been hollowed out to make it both strong and lightweight. 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 plug requires plugging, which is often the case on aftermarket fuel rails and fuel pressure regulators. 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.

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


  • Fits in all fuel rails and other fuel system components that accept
  • -8 ORB fittings
  • 7075-T6 Aluminum construction for added strength over traditional 6061-T6 fittings
  • Anodized for durability
  • Flanged hex to help avoid wrench damage during installation
  • Supplied with ethanol-safe FKM o-ring -7/8" 

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