Mitsubishi Grandis Fuel Pump Assembly MN158344 MN161078 Direct OEM Replacement

Mitsubishi Grandis fuel pump assembly, OEM numbers MN158344 and MN161078, factory direct replacement with no modification required. Core function is to pressurize fuel in the tank and deliver it to the engine, ensuring injector fuel pressure and combustion efficiency. Fits Mitsubishi Grandis automatic transmissions; after installation, it resolves acceleration weakness, hard starting, and rough running. If you hear pump humming, feel weak climbs, or trouble starting when cold, the pump is aging; replace promptly.