Fluidampr 830111 06-10 6.6L Duramax Harmonic Damper

Precision Engine Protection for GM Duramax 6.6L (2006-2010)

The Fluidampr 830111 is a high-performance viscous harmonic balancer engineered to reduce torsional vibrations and improve the durability of your 6.6L Duramax engine. Whether your truck is stock or pushing extreme power levels, this direct bolt-on replacement damper ensures smooth operation, increased torque, and extended engine life.

Key Features & Benefits

• Protects Against Crankshaft Failure – Reduces harmful vibrations that can lead to premature wear and engine damage.
• Increases Torque & Horsepower – Optimizes performance for stock and modified Duramax engines.
• Self-Tuning Viscous Technology – Automatically adjusts in real time to minimize vibrations across all RPMs.
• Stronger & More Durable than OEM – Unlike stock elastomer dampers that degrade over time, this viscous damper lasts the lifetime of your engine.
• Smooth & Quiet Engine Operation – Eliminates unwanted chatter and vibration for a refined driving experience.
• Direct Bolt-On Installation – Easy to install with no tuning or maintenance required.

Application Compatibility

The Fluidampr 830111 harmonic balancer is designed for 2006-2010 GM Duramax 6.6L engines, including:

• LBZ 6.6L Duramax (2006-2007)
• LLY 6.6L Duramax (2006-2007)
• LMM 6.6L Duramax (2007-2010)

Technical Specifications

• Material: CNC-machined steel with black zinc coating
• Outside Diameter: 8.390"
• Weight: 26.2 lbs
• Balance Type: External
• Keyway: Single 5mm Keyway
• SFI Rating: SFI 18.1 Certified (Approved for racing applications)

Why Upgrade to a Fluidampr 830111 Harmonic Balancer?

Your OEM crankshaft damper is made with rubber rings that degrade over time, leading to loss of vibration control and potential crankshaft damage. Upgrading to the Fluidampr 830111 eliminates these risks, offering superior protection and power gains.

Recommended Complementary Upgrades

To ensure a secure installation and maximum durability, consider these performance upgrades:

• Fluidampr High-Strength Bolt Kit – Essential for proper damper retention under high load.
• Cummins Drill Pin Kit – Prevents fretting and enhances damper security in extreme-performance builds.
• Cummins Full Power Kit – Required for engines exceeding 700 HP / 1,250 ft-lbs of torque.

Built for Performance | Made in the USA

The Fluidampr 830111 is manufactured in an ISO 9001-certified facility and built to the highest standards. Whether you’re towing, racing, or daily driving, this harmonic balancer ensures your Duramax engine stays protected and performing at its peak.

• By KLM Performance