Hummer H3 Fuel Pump Assembly 031012 OEM Replacement, stable fuel supply and sufficient power

When your Hummer H3 has starting difficulties, weak acceleration, sudden stalling during driving, or the fuel gauge is unreliable, it indicates the fuel pump assembly may be aged or failed. This part normally supplies fuel from the tank to the engine at stable pressure, ensuring proper air-fuel ratio and smooth power output. This product is an OEM replacement, OEM number 031012, compatible with 2000–2010 Hummer H3 models. When installing, thoroughly clean the fuel tank inlet and fuel line interfaces, replace the fuel filter, and check the fuel pump seal for integrity to avoid leaks or pressure loss.