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.
- 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