
The accessory drive belt spins the IHI supercharger on Hellcat and Trackhawk engines. A glazed, cracked, or slipping belt reduces boost, adds heat, and can leave you stranded without forced induction. The tensioner and idler pulleys wear with the belt — replace as a system.

Address chirp early — belt slip generates heat that accelerates wear on the blower snout bearing.

Use OEM or Gates equivalent belt spec. Replace tensioner and idlers when replacing a worn belt. After service, log the mileage and inspect quarterly if you track the car.
Learn more in our common Mopar SRT problems guide.
Brake upgrades for when belt maintenance turns into track days.
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