Home/Shop by Part/Engine & Engine Management/Engine Sensors & Electrical/Alternator Narrow The Number Of Models Shown By Telling Us The Year Filter Models by Year 2012 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 Choose your GMC Model A 2012 Acadia Alternator S 2012 Sierra 1500 Alternator 2012 Sierra 2500 HD Alternator 2012 Sierra 3500 HD Alternator T 2012 Terrain Alternator Y 2012 Yukon Alternator 2012 Yukon XL 1500 Alternator 2012 Yukon XL 2500 Alternator