-8an Slim Line Billet Port Plug

The Aeromotive -8AN Slim Line Billet Port Plug is a precision hydraulic fitting designed for custom fuel system applications where space constraints and clean aesthetics demand a compact solution. This aluminum port plug serves as a reliable terminator or cap for unused -8AN ORB (O-Ring Boss) ports on fuel rails, manifolds, carburetors, and aftermarket fuel system components. Whether you're building a high-performance street machine, competition vehicle, or custom fuel distribution system, this fitting prevents fuel spillage and maintains system integrity.

Machined from billet aluminum and finished in black anodize, the -8AN Slim Line Billet Port Plug combines durability with a refined appearance. The slotted hex head design enables secure, hand-friendly installation and removal without requiring specialized tools, while the integrated O-ring provides a leak-free seal at the port interface. The slim line profile minimizes overall footprint, making it ideal for tight engine bays where standard plugs would interfere with wiring, hoses, or other components. Aeromotive's precision engineering ensures consistent thread engagement and repeatable, reliable sealing across multiple installation cycles.

Fuel system builders, engine swap specialists, and performance tuners rely on this fitting to complete custom -8AN ORB fuel rail configurations and block port manifolds. Installation is straightforward: simply thread the port plug into the unused -8AN ORB port by hand, then snug with a wrench on the slotted head until the O-ring compresses fully—no excessive torque required. Compatible with all -8AN ORB applications, this plug is an essential component for any modular or custom fuel system project demanding professional-grade fit and finish.