OEM:  045903315A

CAR BRAND： Auto Timing belt kit idler pulley for VW ,Auto Timing belt kit idler pulley for ADUI ,Auto Timing belt kit idler pulley for SKODA
SKF / INA：

Idler pulley is responsible for maintaining the proper tension on the timing belt to ensure accurate engine timing. 
Professional  auto timing belt kits idler pulley manufacturer - China SAILUNTE

Timing belt kit includes an Timing Tensioner Idler pulley , which is an essential component of the engine's timing system.