07.5-18 6.7L Dodge Cummins Fluidampr Harmonic Damper

Original price was: $644.50.Current price is: $591.60.

2007.5 – 2018 6.7L Dodge Cummins Fluidampr Harmonic Damper

SKU: 920321 Category:


2007.5 – 2018 6.7L Dodge Cummins Fluidampr Harmonic Damper

Fluidampr # 920321

Each time the air/fuel mixture inside a cylinder is ignited, the combustion that occurs creates a torque spike that is applied to the crankshaft through the piston and rod. This torque spike is so severe that it not only turns the crankshaft, it actually twists the crankshaft ahead of its normal rotation and then the crankshaft rebounds. This twisting action is known as torsional vibration. When these torque spikes and forces get into phase with the natural frequency, critical torsional harmonic vibrations occur and can be seriously destructive to the bearings and the crankshaft. Dampers are designed to control those destructive vibrations.


  • Improved tapered outer housing allows accessory drive belt to be removed and installed with damper in place
  • Thicker mounting flange area and tighter tolerance bolt holes increase structural integrity


  • Outside Diameter:  9-1/4″
  • Bore Diameter:  0.750″
  • Length:  2.665″
  • Weight / Lbs (Rotating Weight / Lbs.):  25.1 (16.7)
  • Finish:  Black Zinc Chromate

Additional information

Weight 14 lbs
Select Options

Harmonic Damper Only, Damper With ARP Bolt Kit