ATI Performance Products ATI917401E Super Damper Standard Harmonic Balancer

The ATI Performance Products ATI917401E Super Damper is a patented, high-performance crankshaft harmonic balancer engineered exclusively for performance engines. Designed to eliminate harmful torsional crankshaft vibrations that rob horsepower and accelerate engine wear, the ATI Super Damper is a proven upgrade for both race and street applications.

Unlike OEM rubber-bonded balancers that degrade over time and fail under high-RPM stress, the ATI Super Damper uses precision-machined O-rings retained in computer-machined grooves within the steel inertia weight. These O-rings are dyno-tested and selected for the correct durometer for each specific application, ensuring optimal damping efficiency across the entire RPM range.

Key Features:

• Patented design engineered exclusively for high-performance engines
• Exceeds SFI 18.1 safety certification standards
• Eliminates torsional crankshaft vibrations for smoother power delivery
• Steel inertia weight with computer-machined O-ring grooves (dyno-tested durometer)
• Inner and outer shells available in aluminum or steel construction
• Black zinc chromate finish for corrosion resistance
• Laser-engraved 360-degree timing marks for precise tuning
• Tunable and fully rebuildable in the field
• OEM equipment on a variety of performance crate engines
• Supercharger and power steering drive pulleys available for select applications

The ATI Super Damper is sold individually and is the trusted choice of professional racers and performance enthusiasts who demand reliable crankshaft protection at all engine speeds.