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.

• 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" Hex Drive