2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Sumps, Accessories & Additives

After adding on an aftermarket fuel system to your 2001-2004 GM 6.6L Duramax LB7 build, you've likely noticed you're not getting as far on a full tank of gas as you used to. Draw more fuel from your tank with the help of gravity by investing in any of the premium Fuel Sumps we offer here at Alligator Performance! Further enhance your GM 6.6L with our excellent selection of Fuel Upgrades! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.