For   E55, SL55, CLS55, G55, CL55, S55

The UPD M113K performance 2 piece idler kit with important custom supercharger tensioner pulley bearing shield. Includes both double pulleys needed to replace the factory plastic idlers on your performance AMG with a high quality CNC billet aluminum machined performance pulley set. High quality Nachi bearings are used and double bearings seals are used to protect bearings from heat and dirt. All our billet performance idlers have a ultra hard anodized coating.

• CNC Billet hard black anodized coated
• Rated high speed Nachi bearings
• Smooth quiet running
• Easy install
• Made in USA and highest quality available
• Replace your idlers with UPD`s performance idler set today, as the stock AMG plastic idlers, with rubber bearing seals, are known to fail from the high heat and dirty conditions under the hood.

WARNING:

Beware of cheap knock off and copies made of inferior parts, and bearings. Round hole idlers are known to make more noise in our industry and we call them whistling idlers!! UPD is the original mfg and designer of these USA made and tested parts. 18 years in business and these parts have been tested and proven for over 10 years now. We use the best bearings, exacting tolerances and high quality billet aluminum for your AMG/Mercedes! Fits G55 from 2007-2011 years with M113K Engine.

MADE in USA / Texas.