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