cLICK TO LEARN MORE 2001-2004 6.6l lb7 duramax 2004.5-2005 6.6 lly DURMAX 2006-2007 6.6L LLY/LBZ DURAMAX 2007.5-2010 6.6L LMM DURAMAX 2011-2016 6.6L LML DURMAX 2017-2019 6.6L L5P DURMAX 2020-2026 6.6L L5P DURAMAX
