Inline Fuel Pump Fitting M10 x 1 to 6 AN Male

The Walbro/TI Automotive Inline Fuel Pump Fitting M10 x 1 to 6 AN Male (part number 128-3039) is a precision adapter designed for connecting modern fuel pump outlets to AN-standard fuel system plumbing. This fitting is essential for builders integrating OEM or aftermarket Walbro fuel pumps into custom EFI systems, race fuel cells, or high-flow fuel lines where AN fittings are standard.

Constructed from aluminum and finished in blue anodizing, this fitting resists corrosion while maintaining a lightweight profile critical in fuel system design. The M10x1 inlet threads directly onto Walbro fuel pump outlets, while the 6 AN male outlet accepts standard 6 AN hose fittings, adapters, or fuel rails. The straight design minimizes pressure drop and turbulence compared to elbow configurations, preserving pump efficiency across throttle transitions.

Muscle car restorations, modern engine swaps, and competition fuel system builds all rely on metric-to-AN transitional fittings to bridge pump designs with contemporary plumbing standards. The compact length and lightweight nature of this fitting ensure it adds minimal weight to the overall system, making it an ideal choice for performance applications.