The AirDog II 5G 100GPH A7SPBC262 lift pump, or Fuel Preporator, is a must have upgrade for your 2015-2016 6.6L LML Duramax. The fuel system on your LML is the heart of the vehicle’s performance and reliability. This low pressure (preset at 8-10 psi) Duramax lift pump mounts in front of the fuel tank to the frame jig. This makes it almost hidden, and keeps it out of the way of rocks and debris. The pressure side of the pump connects to the injection pump feed line on the frame. The suction/fuel supply sides connect directly to your factory quick disconnect fittings making the install very straight forward. 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 II-5G fuel pump features a fully adjustable (7-55psi) integrated diaphragm pressure regulator. This regulator offers more consistent fuel pressure and allows for higher flow rates at pressure. It can also be boost compensated to battle any pressure drops under open throttle (boost compensation kits sold seperately). The AirDog 2 5G also includes an updated 12 gauge wiring harness with Metri-Pack 280 connectors, which allows for higher current flow without creating excessive heat.