-8AN to 12mm x 1.5 Metri c Straight Adapter

The -8AN to 12mm x 1.5 Metric Straight Adapter from VIBRANT PERFORMANCE is a precision fluid transfer fitting designed for high-performance automotive cooling, fuel, and hydraulic systems. This adapter bridges two different thread standards—8 AN male (SAE flange) and 12mm x 1.5mm metric male—making it essential for engine bay plumbing in custom builds, fuel system upgrades, and radiator hose conversions. Whether you're fabricating a custom cooling loop or adapting OEM metric components to an aftermarket AN-based fuel system, this straight connector eliminates the need for multiple fittings or incompatible manifolds.

Constructed from lightweight yet durable aluminum with a black anodized finish, the -8AN to 12mm x 1.5 Metric Straight Adapter resists corrosion and maintains structural integrity under pressure cycles common in modern cooling and fuel delivery systems. The black anodized coating provides both aesthetic consistency and a protective barrier against oxidation and thermal stress. The straight design eliminates flow restrictions and angle-induced turbulence, ensuring efficient fluid transfer while maintaining reliable sealing across both port types—critical when working with pressurized systems where leaks compromise performance and safety.

Engine builders, fabricators, and DIY enthusiasts tackling cross-platform cooling and fuel system integrations benefit most from this adapter's standardized port design. It pairs seamlessly with AN-rated hoses, quick-disconnects, and manifolds on one end while accepting metric-threaded radiator outlets, overflow tanks, and OEM cooling ports on the other. Installation requires only standard wrenches and compatible O-ring seals; ensure proper thread-sealant application and torque specifications for your system's operating pressure to prevent leaks during idle or hard acceleration.