Weistec Billet Idler Pulleys M156

Weistec Engineering will now be offering the same CNC machined aluminum belt idlers that are used with our supercharger systems. 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

​Installation Guide

M156_Idler_install

• Great for use in harsh environments

• High quality bearings