The fuel system is made up of the fuel pump, injectors and other fuel lines and is responsible for delivering fuel to the engine with high efficiency. Each component must perform flawlessly to achieve expected engine performance and reliability. Fuel Pumps play an integral part of the Internal Ignition Combustion Engine Fuel System. Fuel pumps drive fuel from the Supply tank to the engine and also distribute fuel to the fuel injection system under higher pressure. Buying Genuine Parts Guarantees engine durability and optimum performance.