Two pulleys with the SRT logo on them.

NEW – Fluidampr announces dampers for SRT 6.2L Hellcat Engine

Justin Fronczak Domestic, Engine Vibration, Fluidampr, Harmonic Damper, News, Product Info, Viscous Damper

SPRINGVILLE, NY [September 18, 2023] – Fluidampr announces the release of two new SRT 6.2L Hellcat engine performance dampers. Part numbers 840302 & 910302, $664.00 & 685.00 MSRP.

Link to SRT 6.2L Hellcat Engines added to Late Models Section.

The SRT 6.2L Hellcat engine was developed to rule modern high power. In spectacular fashion. Chrysler climbed to the top with their fire breathing combination. The Hellcat engine provides a fun driver experience with loads of potential for performance. This also opens the door for upgrades, engine swaps and crate programs. Fluidampr performance damper allows MOPAR enthusiasts to unleash lost horsepower and torque on and off the track.

Upgrading to a Fluidampr performance damper when engine mods are done further ensures long term durability and optimum power by controlling crankshaft torsional vibration. Fluidampr offers the OE size pulley PN:840302 or in an 11% overdrive version PN:910302.


P/N 840302


  • Lightweight aluminum damper ring construction available in OE and 11% overdrive sizes.
  • Hardened Steel hub.
  • Crankshaft torsional vibration protection across RPM range.
  • Reduce risk of crankshaft failure & wear on critical engine parts.
  • Unleash lost horsepower and torque.
  • SFI 18.1 certified. Made in USA.

The damper is finished in a hard coat anodized, then laser engraved with a Fluidampr – Made in the USA logo and SFI 18.1 credential. The new Fluidampr performance damper for the SRT 6.2L Hellcat engine is available through quality parts distributors and professional engine builders.


Updated ACES/PIES & Digital Assets files are available now through SEMA Data.

For other data inquiries, please contact:


About Fluidampr

Fluidampr performance dampers protect your engine from destructive crankshaft torsional vibration.  Install early for durability and optimum performance.  Premium viscous damper technology provides broad range protection across the entire rpm range.  No tuning or maintenance required.  Precision balanced CNC machined high-grade steel components.  Corrosion resistant black chromate finish with laser engraved markings.  Applications include popular domestic, import and diesel engines.  Available through quality performance shops and parts distributors.  For more information call (716) 592-1000 or visit  SFI 18.1 certified.  Made in USA.


Fluidampr has no connection or affiliation in any way with Chrysler/SRT or any cats from hell.  Reference to any trademarked product(s), name(s) or OEM number is intended solely for reference to the usage for that Fluidampr part.  No product was manufactured by the previous mentioned companies or their suppliers.

P/N 840302 Media Kit

Link to 360 Image Set for P/N 840302

P/N 910302 Media Kit

Link to 360 Image Set for P/N 910302