ATI Performance Products ATI916265 Super Damper Crankshaft Harmonic Balancer

The ATI Performance Products ATI916265 Super Damper is a high-performance crankshaft harmonic balancer engineered to reduce torsional crankshaft vibration, protect engine components, and improve overall engine efficiency. ATI's Super Dampers are the industry standard in professional racing and high-performance street applications, trusted by engine builders and racers across virtually every motorsport discipline.

Unlike factory rubber-bonded harmonic balancers that can slip, degrade, or fail under high RPM and extreme heat, the ATI Super Damper uses a precision-machined billet aluminum housing with an inertia ring floated on a specialized viscous fluid. This design provides superior damping across a wide RPM range and maintains its calibration indefinitely.

Key Features:

• Precision billet aluminum construction for reduced rotating weight
• Viscous fluid damping mechanism — no rubber to slip, degrade, or separate
• Maintains accurate timing marks and SFI certification for sanctioned racing
• Reduces crankshaft torsional vibration to protect bearings, rods, and valvetrain
• Rebuildable and re-indexable design for long service life
• Manufactured in the USA by ATI Performance Products

ATI Super Dampers are SFI 18.1 certified where required and are a direct upgrade over OEM balancers for performance builds. Whether used on a dedicated race engine or a high-output street motor, the ATI916265 Super Damper delivers measurable protection and performance.