Mercedes-Benz W164 Fuel Pump Assembly 1644701994 High-standard OEM replacement ensures output

Mercedes-Benz W164 series (2005–2011) ML, GL and R-Class (including ML320, ML350, ML500, GL320, GL450 and R320, R350 etc.; 3.0L–5.5L gasoline engines) fuel pump assembly; pressurizes fuel from the tank to the engine to ensure stable combustion. OEM 1644701994; cross-check easily. Replacement difficulty is medium; professional technician recommended; disconnect battery and release fuel system pressure; after installation check seals and oil-line interfaces. This assembly uses high-standard factory-replacement design; output pressure and voltage meet Mercedes original specs; reduces pump noise and fuel-delivery risk; suitable for bulk purchase for repair or refurbishment.