Plastic Pulley

Slow, No Spinning or Binding


Like excessive spinning, slow or no spinning or binding indicates a bad pulley. Moreover, if the plastic pulley is on an engine component, like the alternator or water pump, it’ll also need to be rebuilt or replaced.


If you have been experiencing any of these symptoms, it’s best to replace the faulty idler pulley as soon as possible



The overview of Auxiliary Idler Pulleys

There are two different belt systems on the cars: V-Belt systems and Timing Belt Systems. The auxiliary idler pulleys are found on the V-Belt systems, which has a role to power a variety of important components such as alternator, power steering pump, air-con pump and water pump. The auxiliary V-Belts (also called as Serpentine belts or Poly-V Belts) may vary in length but typically they are quite long. This requires the system to be supported with idler pulleys to reduce the tension and ensure the optimum tightness. The whole system looks like a V letter, thus the name.

Slow, No Spinning or Binding


Like excessive spinning, slow or no spinning or binding indicates a bad pulley. Moreover, if the plastic pulley is on an engine component, like the alternator or water pump, it’ll also need to be rebuilt or replaced.


If you have been experiencing any of these symptoms, it’s best to replace the faulty idler pulley as soon as possible



The overview of Auxiliary Idler Pulleys

There are two different belt systems on the cars: V-Belt systems and Timing Belt Systems. The auxiliary idler pulleys are found on the V-Belt systems, which has a role to power a variety of important components such as alternator, power steering pump, air-con pump and water pump. The auxiliary V-Belts (also called as Serpentine belts or Poly-V Belts) may vary in length but typically they are quite long. This requires the system to be supported with idler pulleys to reduce the tension and ensure the optimum tightness. The whole system looks like a V letter, thus the name.

You can contact us by filling out our contact form for your pulley requests.