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USD 630.7
Part #: FD960311

Fluidampr Performance Diesel Series Damper 960311

Vehicle Fitment:
1989-1998 Dodge 5.9L Diesel 12V | 3.9L Diesel 4BT | See full application list below
Part #: FD960311
★★★★★ ★★★★★ 1 Reviews
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Estimated ship date: 03/06/2024 (if ordered today)

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The Fluidampr Performance Diesel Series Damper 960311 will smooth out the harsh engine harmonics while extending the life of the engine in your 1989-1998 Dodge 12 Valve 5.9L Diesel or 3.9L 4BT Diesel. The factory damper on your diesel has a short lifespan and cannot control torsional vibrations at all RPMs. In contrast, Fluidampr offers superior performance that lasts for the life of your engine. It is ideal for all stock, work, and competition-built trucks, reducing wear on main bearings and other vital engine components. This provides you with more accurate valvetrain operation, optimum engine protection at all RPMs, and lowers the risk of crankshaft failure.

Fluidampr adapts to your modifications automatically, providing optimum damping at both peak levels and a broad changing frequency range. Precision CNC machined and computer-balanced components ensure the Fluidampr never needs to be rebuilt or tuned. Additionally, the Fluidampr design has been updated for ease of maintenance, eliminating the need to remove the damper to change your serpentine belt. Fluidampr manufactures this damper in the USA, and we take pride in our product.

  • OD: 9-3/4" 
  • Material: Steel
  • Weight: 24.2 Lbs
  • Black Zinc Finish
  • Made In The USA
  • Internally Balanced
  • Improved Valve Timing
  • Lasts The Life Of The Engine
  • SFI 18.1 Spec For Competition
  • Sensor Relocation Kit Included
  • Increases Engine Component Life
  • Reduces Risk Of Crankshaft Failure
  • Reduces Harmful Engine Vibrations
  • Never Needs To Be Rebuilt Or Tuned 
  • Optimum Engine Protection At All RPMs
  • Corrosion-Resistant Finish With Engraved Markings
  • Damper Removal Not Required For Belt Replacement
  • Precision CNC Machined & Computer Balanced Components
Note: Includes sensor relocation kit for 12 valve engines using an alternator/tachometer pick up.

Disclaimer: XDP is in no way affiliated with Cummins or any of its subsidiaries or related companies, and that Cummins has not authorized the sale of any of XDP's parts, and has not tested or approved any of XDP’s parts for use in genuine Cummins brand products.

Vehicle Fitment

1989 Dodge 5.9L 12V Cummins
1990 Dodge 5.9L 12V Cummins
1991 Dodge 5.9L 12V Cummins
1992 Dodge 5.9L 12V Cummins
1993 Dodge 5.9L 12V Cummins
1994 Dodge 5.9L 12V Cummins
1995 Dodge 5.9L 12V Cummins
1996 Dodge 5.9L 12V Cummins
1997 Dodge 5.9L 12V Cummins
1998 Dodge 5.9L 12V Cummins
1989 4BT 3.9L Cummins
1990 4BT 3.9L Cummins
1991 4BT 3.9L Cummins
1992 4BT 3.9L Cummins
1993 4BT 3.9L Cummins
1994 4BT 3.9L Cummins
1995 4BT 3.9L Cummins
1996 4BT 3.9L Cummins
1997 4BT 3.9L Cummins
1998 4BT 3.9L Cummins


  • MFG. Number 960311
  • Manufacturer Name Fluidampr (Horschel)
  • Shipping Weight 23.00 lb.
  • Shipping Length 12 in.
  • Shipping Width 12 in.
  • Shipping Height 7 in.
  • Fuel Type Diesel
  • UPC 815293001685
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L0R0


★★★★★ ★★★★★
1.0/5 Star out of 1 Reviews
Verified Buyer
Fluidampr for 12 valve Cummins
This review doesn't reflect XDP. All they did was ship it to me. But I Received this product packaged by the manufacturer. Removed and started installing the new bracket for the crank sensor, cut and extended wires and removed old damper, took the new fluidampr out of the plastic and found half the paint missing off the front face. At this point I'm too far in to install the old one so I finish the repair because I need my truck for work. Contact fluidampr rep and he said he can offer me a replacement or give me a discount on a future purchase. But can't just give me a discount on the flawed product I received and sent pictures of. So instead of doing the job all over again I will just take it on the chin and have a flawed fluidampr on my truck that's going to start rusting. XDP isn't at fault in any way, just letting people know this company won't go out of their way to help a customer who just spent $700 on a vibration damper. I'll never do business with or recommend fluidampr to anyone.

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Questions and Answers

What type of sensor does this kit use? I.E. magnetic pickup vs hall effect?
View Staff Answer 
The Fluidampr Performance Diesel Series Damper 960311 uses a magnetic Sensor.

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