A pulley can be ribbed or smooth and contains a sealed ball-bearing. The idler pulley is used to divert the drive belt to components such as the alternator water pump or power steering pump. Accessory Drive Belt Idler Pulley.
ACDelco 36173 Accessory Drive Belt Idler Pulley
ACDelco 38274 Accessory Drive Belt Tensioner Assembly
ACDelco 38108 Accessory Drive Belt Tensioner Assembly
ACDelco 36157 Accessory Drive Belt Idler Pulley 03-21 Sealed
ACDelco 38195 Accessory Drive Belt Tensioner Assembly
ACDelco 38042 Accessory Drive Belt Pulley
