ATI Performance Products ATI918623 Super Damper Harmonic Balancer

The ATI Performance Products ATI918623 is part of ATI's patented Super Damper harmonic balancer lineup — the only line of crankshaft dampers designed exclusively for high-performance and racing engines. Built to eliminate destructive torsional crankshaft vibrations, the Super Damper series is trusted by professional and amateur racers alike across drag racing and street performance applications.

ATI Super Dampers are constructed with inner and outer shells available in aluminum or steel, each housing a precision steel inertia weight. The inertia weights feature computer-machined grooves that retain application-specific, dyno-tested durometer O-rings, making this damper tunable and rebuildable for long service life.

Key Features:

• Eliminates torsional crankshaft vibrations for improved engine longevity and performance
• Exceeds SFI 18.1 certification requirements
• Black zinc chromate finish for corrosion resistance
• Tunable and rebuildable design for ongoing serviceability
• Laser-engraved 360-degree timing marks for precise engine tuning
• Dyno-tested O-rings matched to specific application requirements
• OEM equipment on a variety of high-performance crate engines

ATI Performance Products brings over 50 years of transmission, torque converter, and performance component manufacturing experience to every Super Damper. The ATI918623 is engineered to meet the demands of both street and race environments, delivering reliable crankshaft harmonic control at all RPM ranges.