Fluidampr Performance Viscous Diesel Damper for Select 2011-2017 Chevrolet/GMC (6.6L) 830121

Fits select 2011-2017 Chevrolet Silverado and GMC Sierra 2500/3500 HD, and 2014 GMC Savana 2500 (6.6L).

Protect your 6.6L Duramax engine from the destructive effects of torsional vibration with the Fluidampr performance viscous damper. High-performance diesel builds generate significant harmonics that factory rubber dampers are not designed to manage. This SFI 18.1 certified damper utilizes a viscous fluid design to control vibrations across the entire RPM range, reducing the risk of crankshaft failure and minimizing wear on critical internal components.

Engineered for professional-grade durability, this unit is CNC machined from high-grade steel and finished in a corrosion-resistant black zinc. The maintenance-free design requires no tuning or refills, providing consistent protection for competition or heavy-duty towing applications. Every unit features engraved timing marks for precise adjustment and is manufactured in the USA.

• Manufacturer Part Number: 830121
• SFI 18.1 certified for competition use
• Precision CNC machined high-grade steel construction
• Corrosion-resistant black zinc finish with engraved timing marks
• Viscous fluid technology controls harmonics at all engine speeds
• Maintenance-free design with no internal rubber to degrade
• Made in the USA