Parts and prices listed on our site are based off GM pricing. Silverado, sierra. 6.6l. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. 6.6L diesel, with dual generators, serpentine belt. 6.6L diesel, without dual alternators, serpentine belt.
Genuine GM Drive Belt #88986814
Genuine GM Drive Belt Idler Pulley 24581489
Genuine GM Drive Belt Tensioner 25195388
Genuine GM Drive Belt Idler Pulley 12580773
Genuine GM Drive Belt Tensioner 12627119
Genuine GM Drive Belt Idler Pulley 12666592
