ATI Performance Products 918645 Super Damper Harmonic Balancer 7.525" GM L83 L86 5.3L 6.2L

The ATI Performance Products 918645 Super Damper is a high-performance harmonic balancer engineered specifically for GM Gen V truck engines. This 7.525-inch diameter damper is designed to eliminate destructive torsional crankshaft vibrations that rob horsepower and can damage internal engine components.

Key Features:

• Patented serpentine design with grooves machined directly into the outer damper shell
• Exceeds SFI 18.1 safety specifications for racing applications
• Internally balanced for GM L83, L86, LV3, and L8B engines (2014-2020 5.3L and 6.2L truck applications)
• Constructed from steel with black zinc chromate finish for corrosion resistance
• Laser-engraved 360-degree timing marks for precision tuning
• Tunable and rebuildable design ensures long-term performance
• Features 4+3 groove serpentine configuration for OEM accessory drive systems
• Compatible with all ATI GM-front crank hubs for maximum flexibility

Application Note: This damper is designed for 2014-2020 GM truck and SUV applications with L83 5.3L and L86 6.2L engines. It will not fit L84, L87, or L8T engines. Front accessory drive pulley is not included and must be purchased separately.

ATI's Super Damper technology is highly efficient at all RPM ranges, making it ideal for both high-performance street applications and competitive racing. The damper works by using an inertia ring and elastomer combination that absorbs and dissipates harmful crankshaft vibrations throughout the engine's operating range.