Our Whipple idler now includes clearance and a spacer for 3.8L applications!
Description
Our billet aluminum adjustable idler pulley for the Hellcat, Demon, Redeye, Trackhawk, TRX, and Hellcat Durango platform is just what your supercharged 6.2 needs. The factory belt routing can lead belt slip under high load, due to the inadequate bel...
Reviews
5.0
6 ratings
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Looks great and fits good
It does fit but for sure needs a bigger belt as stated in the directions, i will ne adding it after my factory belt either slings off or goes bad due to not having very many miles on it but is going to look good next to the murica catch can.
J
Jeff · July 15, 2026
Top quality parts
This is a must have for any Hellcat owner. The quality is unbeatable and truly a top-notch product built with pride.