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Protect your 2001–2005 GM/Chevy 6.6L Duramax LB7 or LLY engine with the Fluidampr Performance Diesel Damper (Part #890101)—the same proven technology trusted by leading high-power diesel OEMs. This premium viscous damper provides superior, broad-range control of destructive crankshaft torsional vibrations, ensuring optimal performance, reliability, and long-term durability.
When upgrading your Duramax with performance modifications or heavier-duty rotating components, the Fluidampr viscous damper helps reduce wear on main bearings, timing gears, and crankshafts. Built from high-grade steel and filled with long-lasting silicone fluid, each unit is CNC-machined, computer-balanced, and requires no tuning or maintenance—ever.
Includes: Mounting washer
Recommended: Fluidampr High Strength Bolt Kit (Part #300010)
Reduces harmful crankshaft torsional vibrations
Protects main bearings, timing gears, and crankshafts
Ideal for performance and heavy-duty diesel applications
CNC-machined and computer-balanced construction
Self-tuning viscous design requires no maintenance
SFI 18.1 certified for racing and safety compliance
| Specification | Detail |
|---|---|
| Part Number | 890101 |
| Fitment | 2001–2005 GM/Chevy 6.6L Duramax LB7 / LLY |
| Bore Diameter | 1.9300" |
| Degree Marking Range | 1 timing mark |
| Degree Markings | Engraved |
| Engine Balance | External |
| Finish | Black Zinc |
| Keyway | Single (5mm) |
| Length | 2.66" |
| Material | Steel |
| Mounting Hardware Included | Yes – Washer included. Recommend Bolt Kit p/n 300010 |
| Outside Diameter | 8-3/8" |
| Safety Rating | SFI 18.1 |
| Weight / Rotating Weight | 26.6 lbs / 17.6 lbs |
2001–2005 GM 6.6L Duramax LB7
2001–2005 GM 6.6L Duramax LLY
2001–2005 Chevy 6.6L Duramax LB7
2001–2005 Chevy 6.6L Duramax LLY
