Power adders, cams and higher RPM change how a supercharged Hellcat crankshaft vibrates, and the stock elastomer damper was only tuned for the engine as delivered. This Fluidampr viscous damper controls torsional vibration across the entire RPM range, so it keeps protecting the crank however the build evolves.

Fluidampr 910302 Harmonic Balancer Features:

• Fits 2015-2021 Dodge Challenger, 2015-2020 Dodge Charger and 2018-2021 Jeep Grand Cherokee with the 6.2L supercharged Hellcat Hemi
• 11% overdrive pulley spins the supercharger faster for more boost
• 9.170 in. outside diameter, 3.650 in. depth, 1.480 in. bore
• Serpentine pulley with 10 rear and 6 front grooves
• A/C bracket may need grinding for clearance
• Internally balanced
• Steel damper with aluminum pulley
• Black zinc damper with black anodized pulley
• 13.1 lbs total weight, 8.7 lbs rotating weight
• Viscous silicone design controls torsional vibration across the entire RPM range
• Helps reduce wear on critical engine parts and the risk of crankshaft failure
• Can free up torque and horsepower lost to crankshaft vibration
• Precision CNC-machined and balanced components
• No maintenance required
• SFI 18.1 certified