Seller notes

The UPD M156 performance 5 piece serpentine idler kit , includes all 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 only double metal 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 anodized coating, ZZ rated high speed nachi bearings. * Smooth quiet...

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