HPS Performance Products AN816-4-M10125 to Metric Adapter Fitting - AN-4 M10x1.25

The HPS Performance Products AN816-4-M10125 is a precision-engineered adapter fitting that converts metric female threads to male AN flare connections. This adapter provides a reliable solution for connecting AN-style hoses and fittings to metric-threaded ports commonly found on European and Asian automotive, motorcycle, and powersports applications.

Key Features:

• Constructed from high-grade 6061 aluminum with Type II black anodizing for superior corrosion resistance and durability
• Side A features male AN-4 (37-degree flare) connection
• Side B features M10 x 1.25 male metric thread
• Compatible with fuel, oil, coolant, alcohol, nitrous oxide, and hydraulic fluid systems
• Includes aluminum crush washer for proper sealing
• Converts existing female M10x1.25 metric threads to accept standard AN-4 hose ends

This adapter fitting is ideal for custom plumbing applications, turbo installations, fuel system modifications, and performance upgrades where metric and AN fittings need to be integrated. The lightweight aluminum construction and protective anodized finish ensure long-lasting performance in demanding automotive and racing environments.