AN to Metric Fitting -10AN to M22 x 1.5

The AN to Metric Fitting -10AN to M22 x 1.5 from Vibrant Performance is an essential adapter for modern engine builders and custom cooling system integrations. This fitting bridges the gap between SAE Teflon hose standards and ISO metric port configurations, making it indispensable when fabricating custom fuel, coolant, or oil circulation lines on modified engines. Whether you're upgrading a turbocharger intercooler setup, installing auxiliary cooling loops, or routing high-pressure fuel systems on a stroker engine, this adapter provides the reliable transition point you need between legacy -10AN components and metric-threaded engine block ports.

Constructed with precision engineering, the -10AN to M22 x 1.5 fitting accommodates a 10-size AN (5/8-inch) hose while threading seamlessly into M22 x 1.5 metric ports commonly found on late-model engine blocks, radiator housings, and OEM adapters. The design minimizes turbulence and pressure drop across the transition, critical when managing fuel delivery or coolant flow in high-horsepower applications. Vibrant Performance's fitting features proper thread sealing geometry and durable material composition to withstand vibration, thermal cycling, and the pressure demands of modified engine systems—whether you're running a twin-turbo setup or a high-volume fuel system on a naturally aspirated platform.

Mechanics and engine builders working on Euro-derived platforms, late-model domestic engines with metric cooling systems, or hybrid custom builds will find this fitting essential for clean, professional plumbing. Installation requires standard -10AN hose barb adapters on one end and hand tools or a wrench for the metric port; proper use of PTFE thread sealant ensures leak-free operation under sustained boost or high-flow conditions. This adapter is ideal for anyone fabricating custom fuel rails, intercooler piping, or auxiliary cooling circuits who needs reliable metric-to-AN compatibility without compromising system pressure or flow characteristics.