Part Type: Accessory Drive Belt Tensioner Assembly. DriveAlign Automatic Belt Drive Tensioner. Belt Tensioner. 2009 GMC Yukon XL 2500 Engine: 6L V8 GAS; Steel Pulley; Improved Design;. 2010 GMC Yukon XL 2500 Engine: 6L V8 FLEX; Steel Pulley; Improved Design;.
