Aircraft Engine Fuel System Market was valued at USD 6.75 billion in 2022 and expected to grow at a CAGR of 7.4% during the forecast period. Aircraft engine fuel system is a crucial component of an aircraft's powerplant, providing the fuel that powers the engine. The fuel system consists of several components, including fuel tanks, fuel lines, fuel pumps, fuel filters, fuel injectors, and control valves. The main function of the aircraft engine fuel system is to store and deliver the correct amount of fuel to the engine, in a timely and efficient manner. The fuel system is designed to operate under a range of conditions, including altitude, temperature, and fuel type. It must be able to deliver fuel to the engine under all flight conditions, including takeoff, climb, cruise, and descent. The fuel system must also be able to handle different types of fuel, including aviation gasoline (avgas) and jet fuel (kerosene).