The Genuine VW / Audi Drive Belt Idler Pulley Bolt - N90870602 is a high-quality replacement bolt for the idler pulley in VW and Audi vehicles. It is designed to securely hold the idler pulley in place, ensuring proper tension and alignment of the drive belt. This bolt is made from durable materials and is an exact match to the original part, ensuring a perfect fit and reliable performance. It is a genuine OEM part, meaning it is manufactured by the same company that made the original part for your vehicle. This ensures the highest level of quality and compatibility. This drive belt idler pulley bolt is a crucial component for maintaining the proper functioning of your vehicle's engine and should be replaced if it becomes worn or damaged.