Bulkhead AN Straight -12

The Bulkhead AN Straight -12 from Allstar Performance is a precision AN hydraulic fitting designed for high-performance fuel, oil, and coolant line systems in custom vehicles, race engines, and heavily modified street machines. This straight-port bulkhead adapter is essential for builders who demand clean, leak-free connections in tight engine bays where traditional bend-radius tubing won't fit.

Whether you're routing fuel lines around a supercharger, plumbing a custom water cooling loop, or consolidating AN connections through a firewall, the Bulkhead AN Straight -12 provides the compact, reliable interface professionals trust. This bulkhead fitting features AN -12 port sizing, accommodating a 0.75-inch hose with JIC 37° flare connections on both ends. The straight-through design eliminates flow restriction and pressure drop, critical for maintaining adequate fuel delivery and cooling efficiency in high-output engines.

Allstar Performance's precision machining and rigorous testing ensure zero seepage, making it a dependable choice under sustained boost or high-RPM stress. The compact 2.05 x 1.5 x 4.05-inch package and minimal 0.17-pound weight facilitate straightforward installation in confined spaces. Mechanics and engine builders favor this fitting for late-model LS conversions, fuel-injected V8 swaps, custom radiator and heater core lines, and pressurized cooling systems.