FASS Fuel Tank Sumps - GM Duramax LML

Don't fight gravity, let it work for you. One of the simplest upgrades of any diesel fuel system is a fuel sump. Don't rely on a suction tube or baffled fuel tank that may cause low fuel situations when braking, accelerating or in tough terrain. These fuel sumps are a perfect pairing with an AirDog or FASS system. Available in kits with or without fuel return depending upon your needs.