奔驰W164/W163（05-11）燃油泵总成A1644702194，原厂标准品质

Mercedes-Benz W164/W163 series (2005-2011), original part numbers A1644702194 and A2C53285495 fuel pump assembly, manufactured strictly to OEM standards. Uses high-density engineering plastic and corrosion-resistant metal materials; pump core rotor precision-machined; lifespan comparable to original. Functionally maintains system pressure within standard values to ensure cold start and acceleration response. Installation requires removing rear seat or underfloor shield; preferably performed by a technician familiar with the model.