The Genuine VW / Audi Fuel Pump Assembly Kit - 178334 is a comprehensive kit designed to provide all the necessary components for replacing a fuel pump in a Volkswagen or Audi vehicle. This kit includes a fuel pump assembly, which is responsible for delivering fuel from the tank to the engine, as well as a fuel filter, which helps to remove impurities from the fuel before it reaches the engine. Additionally, the kit contains a fuel pump relay, which controls the operation of the fuel pump, and a fuel pump gasket, which helps to ensure a secure seal between the fuel pump and the fuel tank. This kit is designed specifically for use with Volkswagen and Audi vehicles, ensuring compatibility and reliable performance.