ATI Performance Products 918486 Super Damper Serpentine Harmonic Balancer 7.48" 18% Overdrive

The ATI Super Damper Serpentine Series harmonic balancer features patented technology designed exclusively for high-performance Chrysler, Dodge, and Mopar HEMI engines. This 7.48-inch diameter damper is designed for internal balance applications on 5.7L and 6.4L HEMI engines. Built specifically for high-performance applications, this damper provides balanced dampening of torsional crankshaft vibrations at all RPM.

Key Features:

• SFI 18.1 certified for street and race applications
• Serpentine belt grooves machined into the outer damper shell
• Six outer grooves for standard OEM drive systems
• Laser-engraved 360-degree timing marks for precise tuning
• Aluminum outer shell with steel inertia weight construction
• Black zinc chromate finish for corrosion resistance
• Tunable and rebuildable design for long-term serviceability
• 18% overdrive ratio ideal for supercharged and turbocharged applications

The steel inertia weight features computer-machined grooves that retain precision-durometer O-rings, which are dyno-tested for each specific application. This damper is OEM equipment on 392 Mopar Crate Engines and provides maximum flexibility for various engine combinations. The design eliminates torsional crankshaft vibrations while remaining extremely efficient at all RPMs.

Applications: Fits 2011+ Chrysler 300C, Dodge Challenger, Dodge Charger, Dodge Durango, and Jeep Grand Cherokee equipped with 5.7L or 6.4L HEMI engines.