Accessory Drive Belt Tensioner Assembly Dayco For 2013-2021 Western Star 4700SB

2013 Western Star 4700SB Engine: 8.9L L6; Position: Main Drive;. 2014 Western Star 4700SB Engine: 8.9L L6; Position: Main Drive;. 2015 Western Star 4700SB Engine: 8.9L L6; Position: Main Drive;. 2016 Western Star 4700SB Engine: 8.9L L6; Position: Main Drive;.