Fluidampr Fluidampr Harmonic Balancer DODGE D250

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Part #: 960311
Notes: Fluidampr Harmonic Balancer
MSRP: $610.33
Your Price: $460.96
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Bore Dia. Min/Max NA
Degree Markings No
Engine Balance Internal
Finish Black Zinc
Keyway Drill pin kit #300002 recommended for high HP over 3000RPM
Length 2.617
Material Steel
Mounting Hardware Incl. No
O.D. 9-3/4" (9.750)
Safety Rating SFI 18.1
WT. in lbs.()=Rotating weight 24 (16.1 Rwt)

All Fitments

Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1992 - 1993 D250 BASE L6 5.9 T ALL DIESEL 12-Valve;
1992 - 1993 D350 BASE L6 5.9 T ALL DIESEL 12-Valve;
1994 - 1994 RAM 2500 ALL L6 5.9 T ALL DIESEL
1995 - 1998 RAM 2500 BASE L6 5.9 T ALL DIESEL Extended Cab Pickup; 12-Valve;
1998 - 1998 RAM 2500 BASE L6 5.9 T ALL DIESEL Crew Cab Pickup; 12-Valve;
1994 - 1997 RAM 3500 ALL L6 5.9 T ALL DIESEL
1998 - 1998 RAM 3500 BASE L6 5.9 T ALL DIESEL Crew Cab Pickup; 12-Valve;
1992 - 1993 W250 BASE L6 5.9 T ALL DIESEL 12-Valve;
1992 - 1993 W350 BASE L6 5.9 T ALL DIESEL 12-Valve;

Product Description

Fluidampr Engine Dampers are designed to control destructive vibrations which are transfered thru the crankshaft.

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.

Critical harmonic vibrations occur numerous times in a engine’s operating range. Stock rubber and elastomer-type dampers are frequency sensitive “tuned absorbers”, and work at only one critical frequency. In the case of a stock rubber damper, it is tuned for a factory engine’s critical harmonic vibrations. If you change the mass of pistons, rods, or the crankshaft, you change the natural frequency of the crankshaft assembly; therefore, the stock damper is no longer tuned to the new frequency of vibration, and you may be headed for early failure of expensive engine components. Dampers also create heat while they work, and rubber is a poor dissipator of heat. This heat and the exposure to the elements deteriorates rubber, causing it to crack and change durometer, which then leads to inertia ring slippage, damper failure, uncontrolled torsional vibration, and costly engine parts breakage.

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