The AirDog FP-4G 150GPH A4SPBC189 is the original proven Air/Fuel Separation Duramax LML lift pump or Fuel Preporator. A lift pump system is a must have for your 2011-2014 6.6L Duramax diesel. The fuel system on your Duramax diesel truck is the heart of the vehicle’s performance and reliability. This low pressure (preset at 8-10 psi) LML lift pump mounts in front of the fuel tank to the frame jig. The pressure side connects to the factory fuel line that feeds the CP4 injection pump. The suction/fuel supply side connects to the 1/2″ draw straw suction tube that is installed in the top of the fuel tank. Due to the fact the Duramax does not have a factory lift pump, these trucks usually see the most benefit from an AirDog lift pump fuel system. (see How It Works).
The AirDog FP150-4G Duramax fuel pump incorporates the proven, quiet, and reliable 4G motor featured in the AirDog II systems. This 4-bearing motor technology is paired with the original FP high flow return base and pump assembly to maintain the proven benefits and features of the Original AirDog model.