One M113K AMG Mercedes Supercharger smooth tensioner pulley located on the upper left engine, passenger side. Billet machined in USA with special cut cooling slots to keep bearing and pulley cool and run quiet. Nachi bearings used in all idlers and know to be the best in pulley bearing performance. Comes with custom bearing shield. Made from billet aluminium and hard anodized in clear coat.
This is one of the fastest turning idlers on the engine and known to fail.
Fits all AMG mercedes from 2003-2008 with M113K supercharged engine.
Includes bearing shield as shown.
Made in USA and going on Mercedes AMG for the last 12 years!