Serious diesel power puts serious torsional vibration through the crankshaft, and a worn or overmatched stock damper lets it chew up bearings and timing components. This Fluidampr viscous damper uses the same technology heavy duty diesel OEMs rely on to control vibration across the entire RPM range on internally balanced Duramax builds.

Fluidampr 760131 Harmonic Balancer Features:

• Fits 2001-2018 GM 6.6L Duramax engines
• For internal balance crankshaft conversions only
• 7.750 in. outside diameter, 2.116 in. depth, 1.927 in. bore
• 6-groove serpentine pulley
• Dual keyway (5 mm and 1/4 in.)
• Engraved TDC timing mark
• Includes washer; Fluidampr High Strength Bolt Kit 300010 recommended
• Black zinc finish over CNC-machined steel
• 22.3 lbs total weight, 14.7 lbs rotating weight
• Viscous silicone design controls torsional vibration across the entire RPM range
• Helps reduce wear on critical engine parts and the risk of crankshaft failure
• No maintenance required
• SFI 18.1 certified