94034146 OE Coolant Block Drain Gasket.
For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 ,2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GM 6.6L Duramax LB7 LLY LBZ LMM LML L5P
For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 ,2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GM 6.6L Duramax LB7 LLY LBZ LMM LML L5P
The block drains on each side of the engine use this gasket on the plug to ensure no leaks. 2 required per engine
2500HD 3500 Silverado Sierra 6.6L V8 Duramax diesel: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
2500 3500 LLY LMM LGH Van Express Savana 6.6L V8 Duramax diesel: 2006, 2007, 2008, 2009, 2010, 2011, 2013, 2014, 2015, 2016