Fluidampr 830121 2011-2016 Duramax Fluidampr Diesel Performance Damper


Fluidampr 830121

Fluidampr 830121 2011-2016 Duramax Fluidampr Diesel Performance Damper

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Fluidampr High Performance Duramax Diesel Viscous Crankshaft Vibration Damper

Fluidampr 830121 GM 6.6L Duramax 2011 to 2016 Replacement Harmonic Fluid Dampers applications:

  • Replacement Damper for LGH Duramax Engines
  • Replacement Damper for LML Duramax Engines

The Fluidampr 830121 High Performance Diesel Harmonic Balancer works on the 2011+ versions of the GM 6.6L Duramax engines.

Fluidampr 830121 6.6L Duramax 2011 to 2016 Harmonic Fluid Dampers Specifications:

  • Material = Steel Coated in a Black Zinc Finish
  • Outside Diameter = 8.390"
  • Unit Weighs = 25.4
  • Balance = External
  • Approved Safety Rating SFI 18.1
  • Bore Diameter  = 1.9300
  • Length = 2.858"

Benefits of installing the Fluidamper 830121 viscous harmonic damper:

  • Externally mounted viscous vibration damper.
  • Designed for Stock to Extreme Power levels.
  • Offers critical protection for High Performance motors.
  • Designed as a direct bolt-on replacement crankshaft damper.
  • Protect your engine from destructive torsional vibrations.
  • Works at all RPM and Power levels.
  • Viscous Damper continuously self-tunes in real-time to control destructive vibrations.
  • Will increase Torque and Horsepower output!
  • Dramatically reduces the chance of crankshaft failure.
  • Preserves the service life of your motor.
  • Reduced wear on the main bearings.
  • Reduced wear on the timing gear.
  • Provides more Stable Valve train operation.
  • Lower chance of a crank failure
  • The installation will quiet and smoothen out the chatter in diesel engines.
  • This crankshaft damper is the highest quality aftermarket vibration damper available.

Ensure your High Performance Duramax Damper stays in place with the Fluidampr 300010 GM Duramax 6.6L High Strength Bolt Kit

Fluidampr 830121 6.6L Duramax Harmonic Replacement Damper is MADE IN THE USA!

  • Engine: 6.6L Duramax
  • Item Number: Fluidampr 830121
  • Make: Chevy | GM | Chevrolet | General Motors | GMC
  • Model: 2500HD | 3500HD | 4500 | 5500 
  • Year: 2011 | 2012 | 2013 | 2014 | 2015 | 2016 
  • Manufacturer Part No: 830121
  • Product Application: 2011 to 2016 Chevrolet and General Motors vehicles with the 6.6L Duramax LGH and LML Diesel Engines
  • Height: 12
  • Width: 12
  • Brand: Fluidampr
  • FAQ: Where is the Fluidampr Viscous Harmonic Damper manufactured?  The Fluidmapr product line is an American Made product manufactured in Springville New York at ISO 9001 accredited facility using the latest precision matching components available to make these computer-balanced crankshaft dampers. 
  • Part Number: 830121
  • Manufacturer: Fluidampr
  • Product Note: Only the Fluidampr viscous crankshaft damper can increase the power output while offering the protection you need at all RPM's of your 6.6L Duramax diesel. 

    VIBRATECH WARRANTY: All warranty claims must be made with your point of purchase.

    LIMITED WARRANTY: Vibratech TVD warranty extends to the original purchaser only, and a copy of sales receipt must be provided. Keep your receipt.

    Vibratech recommends that our customers have their Vibratech products installed by a certified technician or engine builder as the warranty does not cover installation errors. Vibratech offers a one-year warranty for defects in material and workmanship. The repair or replacement will be at Vibratech’s discretion. If purchased from Vibratech: To obtain warranty service, call customer service to receive a return authorization number.

    Warranty Returns must include the RMA#, description of the problem, and a copy of the purchase invoice/receipt.

    Warranty Returns shipped without an RMA# will not be processed.

    Customers are responsible for freight charges to Vibratech.

    If a Vibratech product is faulty, Vibratech will pay UPS Ground Freight when returning the product to the customer.


    • Damper failure due to improper installation or maintenance.

    • Loss or injury incurred from the use or operation of Vibratech products.

    • Misuse, abuse, modifications, or unauthorized repairs.

    • Removal or replacement cost.

    • The cost incurred due to the downtime of the vehicle.

    • Damage to other engine or vehicle components.

    • Normal wear and tear.

    • Use in racing applications or competitive purposes.

    • Vibratech limited warranty coverage is subject to change due to uncontrolled circumstances with or without notice.

    • Custom manufactured items are non-refundable.

    Vibratech TVD reserves the right to make changes in design, additions to, or improvements in its standard products without liability to install, change, or improve any product manufactured and shipped prior thereto.