Billet Idler Pulleys, M156

Weistec Engineering complete set of CNC machined billet aluminum idlers. The factory Mercedes parts are plastic and have been a known problem for many naturally aspirated vehicles. This is a great solution for long term use in stock to highly modified vehicles.

Key Features:

  • CNC machined 6061 aluminum
  • Hard anodized to military spec
  • Direct replacement/bolt in for M156/M159
  • Utilizes factory belt
  • 100% serviceable
  • Great for use in harsh environments
  • High quality bearings