Mopar 6.780 Super Damper - SFI

The Mopar 6.780 Super Damper - SFI is a precision harmonic balancer engineered for Mopar 4-cylinder engines requiring serious vibration control and durability. Built for engine builders, restoration specialists, and performance enthusiasts, this serpentine super damper eliminates destructive crankshaft harmonics that can lead to premature bearing wear, seal failure, and reduced engine longevity. With an internal balance design and SFI 18.1 certification, it delivers the reliability demanded by both street and competition applications.

This harmonic balancer features a 6.780-inch outer diameter and combines aluminum and steel construction for optimal strength-to-weight ratio and vibration damping efficiency. The dual-ring design absorbs and dissipates oscillating crankshaft vibrations across a wider frequency range than OEM units, protecting internal engine components from fatigue failure. The internal balance configuration integrates with factory Mopar engine block geometry, ensuring precise fitment without modification. SFI 18.1 certification confirms it meets National Hot Rod Association and international safety standards for high-performance use, making it essential for any build destined for dyno testing or sanctioned competition.

Ideal for Mopar 4-cylinder engine swaps, rebuild projects, and forced-induction applications, the Mopar 6.780 Super Damper - SFI suits builders upgrading from stock serpentine balancers or replacing failed harmonic units. Its black finish resists corrosion and blends seamlessly with engine bay detailing. Installation requires standard harmonic balancer removal and installation procedures; verify internal balance compatibility with your specific engine block configuration before ordering. At 7.45 lbs, it provides substantial damping mass without significant weight penalty.