3274048|Water Pump for 2011 GMC Sierra 3500 HD 6.6L - WP3221XP96. Compatible with the 2011 GMC Sierra 3500 HD 6.6L, this Water Pump provides precise alignment and long-term wear resistance. Great for daily drivers, restorations, or preventative maintenance.. 2011 GMC Sierra 3500 HD 6.6L Engine Water Pump - WP3221XP96 Also fits the following vehicles: 2007 GMC Sierra 3500 Classic 6.6L Engine Water Pump, 2007 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2008 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2009 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2010 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2011 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2012 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2013 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2014 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2015 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2016 GMC Sierra 3500 HD 6.6L Engine Water Pump, 2006 GMC Sierra 3500 6.6L Engine Water Pump