Fluidampr 960311 Harmonic Damper 89-98 Dodge 5.9L Cummins 12 Valve

Eliminate torsional vibrations to smooth out your RPM's for a quieter, smoother running engine that also results in a broader powerband and more overall power. 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. This kit ships with a required tachometer sensor kit for 12 valve Cummins running the stock tach/alternator pickup. This kit also comes with a relocation bracket along with the necessary wire connections.

SPECIFICATIONS:

• Outside Diameter: 9-3/4"
• Bore Diameter: 0.750"
• Length: 2.617"
• Weight / Lbs (Rotating Weight / Lbs.): 24.2 (16.1)
• Finish: Black Zinc Chromate
• Proudly made in the U.S.A.