LActrical NEW HIGH OUTPUT 250A AMP ALTERNATOR FOR GMC YUKON XL DENALI 1500 2500 3500 5.3 5.3L 6.0 6.0L 6.2 6.2L V8 ENGINE 2007 07 2008 08 2009 09 2010 10 2011 11 *ONE YEAR WARRANTY by LActrical* LActrical NEW PREMIUM QUALITY REPLACEMENT ALTERNATOR New Aftermarket Part (Not Rebuilt/Refurbished/Repurposed)