While exploring off-road in low visibility environments, the factory lighting falls short. With our selection of Off-Road Light Mounts for your 2001-2004 6.6L Cummins, you can easily add powerful LED lights and light bars. We offer everything from spotlights, fog lights, and high-output LED light bars, providing all the illumination you need to light up the trail. Add additional illumination to your truck’s lighting setup with our efficient and brightHeadlightsand Taillights!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.