Fluidampr Performance Series Diesel Damper 920321 

The Fluidampr 920321 is the ultimate 6.7 Cummins harmonic balancer, engineered to provide superior vibration control for 6.7 Cummins turbo diesel engines. Designed for Dodge Ram 2500, 3500, 4500, and 5500 series trucks from 2007.5 to 2026, this 6.7 Cummins Fluidampr is the best solution for controlling torsional vibrations and improving engine longevity. Whether your truck is stock or highly modified, Fluidampr 920321 self-tunes in real time to optimize performance across the entire RPM range.

Why Choose the Fluidampr 920321?

• Eliminates harmful torsional vibrations that can damage your crankshaft and valvetrain.
• Increases horsepower and torque output for better overall engine performance.
• Works on stock and highly modified 6.7 Cummins engines, ensuring smooth operation under extreme conditions.
• Continuous self-tuning keeps your engine protected at all power levels and RPMs.
• Integrated Reluctor Ring for improved compatibility with factory components.
• SFI 18.1 Certified, making it safe for competition and high-performance builds.
• Direct bolt-on replacement requires no modifications to fit.
• No need to remove the damper for serpentine belt replacement.

Applications - Vehicles That Use Fluidampr 920321

The Fluidampr 6.7 Cummins harmonic balancer is compatible with:

• 2007.5 to 2026 Dodge Ram 2500, 3500, 4500, and 5500
• 2007.5 to 2026 6.7L ISB Cummins diesel engines
• 2007.5 to 2026 6.7L QSB Cummins diesel engines

If you’re running a high-performance Cummins 6.7L engine, this 6.7 Cummins Fluidampr is a critical upgrade to ensure engine durability and efficiency.

Technical Specifications

• Material: High-quality steel
• Finish: Black Zinc Chromate for corrosion resistance
• Outside Diameter: 9.25 inches
• Weight: 25 lbs
• Balance: Internal
• Certification: SFI 18.1 Approved

Cross-Reference Part Numbers

• MOPAR 05086735AA
• Cummins 3957297
• Cummins 5336936

Why Upgrade Your 6.7 Cummins Harmonic Balancer?

Your 6.7L diesel engine comes with a factory-installed viscous damper designed for stock power levels. However, when you add power modifications, you exceed the limits of the stock damper. Upgrading to a Fluidampr 6.7 Cummins harmonic balancer ensures maximum protection for your crankshaft, reducing wear and preventing catastrophic failures.

High-performance diesel engines are exceptionally vulnerable to torsional vibrations. The Fluidampr 920321 is built for the extremes of diesel drag racing, sled pulling, and heavy towing applications.

Recommended Installation Kits for Extra Security

For maximum retention and engine safety, we recommend installing one of these high-performance harmonic damper mount kits:

• Fluidampr Installation Kits
• ARP 147-2503 6.7L Cummins Balancer Bolt Kit

Complementary Upgrades

Enhance your Fluidampr 6.7 Cummins harmonic balancer installation with these additional upgrades:

• Cummins Drill Pin Kit: Prevents fretting and ensures a secure damper fit.
• Cummins Full Power Kit: Essential for engines above 700 HP / 1,250 ft-lbs torque.
• High Strength Bolt Kits: Designed for high-performance builds needing extra durability.

 

• Engine: 6.7L Cummins | 6.7L Cummins ISB Diesel Engine
• Item Number: Fluidampr 920321
• Make : Cummins | Dodge | Ram
• Model : 2500 | 3500 | 4500 | 5500
• Year : 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026
• Manufacturer Part No: 920321
• Product Application: 2007.5 to 2026 Dodge Ram and Ram 6.7L Cummins and any vehicle or equipment with a 6.7L ISB series turbo diesel engine.
• Height: 12
• Width: 6
• Brand: Fluidampr
• FAQ: What are the benefits of installing a Viscous Fluidampr Harmonic Damper? A viscous Harmonic Damper controls power-robbing torsional vibrations and increases both Horse Power and Torque while ensuring optimum engine performance at all engine RPMs and Power Levels.
• Part Number: 920321
• Manufacturer: Fluidampr
• Product Note: Only a Fluidampr viscous damper can control the destructive torsional vibrations at all power levels and engine RPMs your 6.7L Cummins diesel engine will produce.