Straight Bulkhead Adapte -8AN

The Straight Bulkhead Adapter -8AN from VIBRANT PERFORMANCE is a precision-engineered hydraulic line fitting designed for custom automotive fuel, oil, and coolant system installations. Built for enthusiasts and professional mechanics who demand reliability in high-performance engine builds, this adapter serves as a critical junction point where AN (Army-Navy) hose lines connect to bulkhead penetrations in engine bays, firewalls, or custom chassis tubing. Whether you're fabricating a fuel cell setup, upgrading to a remote-mounted fuel pump, or routing custom cooling lines, this straight-port configuration eliminates the angular complexity of elbow fittings and provides a clean, leak-free connection.

This -8AN bulkhead adapter features a straight-flow design that maintains consistent diameter throughout the fitting to minimize turbulence and pressure drop in fluid delivery systems. The -8AN designation indicates compatibility with -8 AN hose (1/2-inch nominal ID), a standard sizing choice for fuel and oil circuits in street and track-focused builds. Constructed from aluminum with anodized finish, the adapter resists corrosion while remaining lightweight—critical for chassis modifications where weight reduction matters. The compact footprint (3.54 x 1 x 6.3 inches) allows seamless integration into tight engine bays, and the precision-machined ports ensure female AN fittings seat perfectly without cross-threading or galling.

This bulkhead adapter excels in custom EFI conversions, fuel system rewires, and engine bay plumbing where hoses must pass through firewalls or chassis panels perpendicular to flow. Professional fabricators and DIY builders rely on VIBRANT PERFORMANCE fittings for their reputation in handling boost-referenced fuel systems and high-flow cooling loops without leakage under pressure cycling. Installation requires only standard -8 AN hose and compatible end fittings; confirm your bulkhead hole diameter matches the adapter's specifications before ordering. Ideal for street rods, LS swaps, rotary conversions, and any engine platform where clean fluid routing and system reliability are non-negotiable.