ATI Performance Products ATI918446 Super Damper Harmonic Balancer Overdrive HEMI - 18% 5.7L

The ATI Performance Products ATI918446 Super Damper is a high-performance harmonic balancer designed specifically for 2009-2010 Gen III HEMI 5.7L VVT engines. This SFI 18.1 certified damper features an aluminum hub with steel shell construction and utilizes elastomer technology to effectively eliminate torsional crankshaft vibrations at all RPM ranges.

Key Features:

• 18% overdrive pulley for increased accessory speed
• 7.530-inch outside diameter with 6-groove serpentine belt design
• Laser-engraved 360-degree timing marks for precise tuning
• Aluminum construction with black zinc chromate finish
• Exceeds SFI 18.1 certification requirements
• Tunable and rebuildable for long-term performance
• Three crankshaft pulley bolt holes with single keyway

ATI's patented Super Damper design provides maximum flexibility and efficiency, eliminating harmful crankshaft vibrations that can rob horsepower and potentially damage engine components. The elastomer construction offers superior damping characteristics compared to traditional rubber dampers, while the overdrive pulley ratio increases alternator and water pump speed for improved charging and cooling performance in high-performance applications.