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New Smooth Idler Pulley fits various Nissan and Infiniti models equipped with a VQ35HR or VQ37VHR powertrain. This component is a lower cost alterntive to the OEM Belt Idler Pulley, letting you keep a few extra bucks in your wallet for future modifications!

Located on the front of the VQ37 in your Nissan / Infiniti, the idler pulley is responsible for guiding and maintaining tension with the drive belt. As the bearings in the pulley wear, you may begin to experience a high pitch squeaking or squealing. Over time this may result in complete bearing failure, causing the pulley to lock up and break the belt.

NOTE: Whenever idler or tensioner pulleys are replaced due to faliure, it is important to carefully inspect the belt for excessive wear. New OEM drive belts can be purchased in their respective links below if necessary.


  • 2007-2008 Nissan 350Z
  • 2009+ Nissan 370Z
  • 2007-2008 Infiniti G35 Sedan
  • 2009-2013 Infiniti G37 Sedan
  • 2008-2013 Infiniti G37 Coupe
  • 2014-2015 Infiniti Q50 Sedan
  • 2014-2015 Infiniti Q60 Coupe

Above illustration shows fitment on VQ37VHR. Fitment is similar on HR.


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