ATI Performance Products ATI918990-76 Super Damper Harmonic Balancer

ATI Performance Products ATI918990-76 is a high-performance torsional damper (Super Damper) engineered by ATI Performance Products, one of the most respected names in professional motorsports drivetrain components. ATI Super Dampers are designed to reduce harmful crankshaft torsional vibration that can lead to premature bearing wear, broken crankshafts, and power loss.

Key Features:

• Precision-machined billet aluminum outer ring for strength and reduced rotating mass
• Elastomer-based torsional dampening tuned for high-RPM performance applications
• SFI 18.1 specification compliant for sanctioned racing use
• Replaces OEM harmonic balancer with a serviceable, rebuildable design
• Accepts standard timing tape and degree markings for easy tuning
• Manufactured in the USA to exacting tolerances

ATI Super Dampers are a direct upgrade over factory rubber-bonded harmonic balancers, offering a longer service life and the ability to replace the elastomer element without replacing the entire unit. Trusted by professional racers and engine builders across drag racing, road racing, and circle track applications.