Mitsubishi OEM 5mm Fuel Tank Fastener Nut for Evolution VII, VIII, IX, and X (MS440501)

This genuine Mitsubishi OEM 5mm fuel tank nut is the factory-spec replacement hardware used to secure critical fuel system components on Evolution models, ensuring a precise fit that aftermarket alternatives cannot replicate. It is designed for Evo owners performing fuel system maintenance, sensor replacements, or tank rebuilds, specifically those reinstalling the fuel temperature sensor, fuel pump plate bracket, or plastic safety valves on CT9A or CZ4A chassis vehicles. The 5mm thread size matches the original factory specification exactly, eliminating fitment guesswork during assembly. Sold individually so buyers can replace only the hardware they need without purchasing unnecessary extras. Compatible with CT9A Evolution VII, VIII, and IX models from 2001 to 2006, as well as CZ4A Evolution X models from 2008 to 2015. Important note: JDM and USDM Evo 7, 8, and 9 fuel tanks use different configurations, so confirming your specific tank variant before ordering is recommended. OEM part numbers MS440501 and MS440122 are referenced in the factory diagram for accurate cross-referencing. For builders and restorers who need factory-correct fasteners rather than generic hardware, this direct Mitsubishi factory replacement is the only option that guarantees original torque spec compatibility and long-term durability in a fuel system environment.