The M113k OEM pulley is made of plastic which is notorious for imploding. This leads to belt carnage and a damaged engine compartment. Upgrading your set is a great preventative measure and absolutely necessary if you plan on upgrading your supercharger or crank pulley.
Our 5 piece pulley set includes all pulleys needed to replace the factory plastic idlers on your M113K AMG
You will need a washer for the lower smooth idler
Key Features:
- High quality CNC billet aluminum
- ZZ rated high speed Nachi bearings
- Smooth and quiet running
- Easy install
- Made in USA
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