2007.5-2010 GM Duramax 6.6L LMM Fuel Sumps

So you've added on an aftermarket fuel system to your 2007.5-2010 GM 6.6L Duramax LMM build, yet you've noticed you're not getting as far as you once used on a full tank of gas. 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! GM Duramax Fitments: 2007, 2009, 2010 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.