Fluidampr Performance Diesel Damper 2001-2005 GM 6.6L Duramax LB7 LLY

SKU: fdr890101 UPC: 815293001487
In stock - 25 items available
Regular price $676.26

Have a question about this part? We'll answer it.

Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

Fluidampr's Performance Diesel Series damper for the 2001-2005 GM 6.6L Duramax LB7 and LLY replaces the factory balancer with a viscous unit that keeps working as power levels rise. It is externally balanced and includes the hardened crankshaft washer used on GM applications.

Key Features

  • Viscous design uses a free-rotating inertia ring sealed inside a laser-welded steel housing, shearing through silicone to convert crankshaft torsional vibration into heat.
  • Supplied with a hardened crankshaft washer machined for the GM 3.200 in. bolt circle, replacing the factory crank bolt washer.
  • 8-3/8 in. outside diameter, 23 lbs total weight with 15.4 lbs rotating weight.
  • CNC machined, computer balanced high-grade steel with a corrosion resistant black zinc chromate finish.
  • SFI 18.1 certified and made in the USA.

Fitment

  • 2001-2005 GM / Chevy 6.6L Duramax LB7 and LLY
  • External balance

Installation Notes

OEM crank bolt torque is 74 ft-lbs plus an additional 105 degrees; the bolt is torque-to-yield and must be replaced. Fluidampr recommends the Duramax High Strength Bolt Kit, p/n 300010, at higher power levels and the Duramax Drill Pin Kit, p/n 300019, for added retention.

Product Details

  • Brand: Fluidampr
  • Manufacturer Part Number: 890101
  • Product Type: Crankshaft damper (harmonic balancer)
  • Engine Balance: External
  • Outside Diameter: 8-3/8 in.
  • Weight: 23 lbs (15.4 lbs rotating)

Shipping Height: 7.0

Shipping Length: 12.0

Shipping Width: 12.0

Rebuilt by Techs Who Only Do Diesel

Injectors, pumps, and turbos, serviced by people who've been doing this for decades — not a parts counter with a catalog.

Get A Quote