ATI Performance Products 917376 Super Damper 7.53" Duramax Diesel Harmonic Balancer

The ATI Performance Products 917376 Super Damper is a precision-engineered harmonic balancer purpose-built for 2011-2016 GM 6.6L Duramax LML and LGH diesel engines. Designed with absolute precision in mind, this Super Damper is one of the highest quality harmonic balancers built for Duramax diesel engines.

Key Features:

• Eliminates torsional vibration at the crankcase to significantly reduce engine wear and allow power to come on quicker and smoother
• Built from steel in the USA with black zinc chromate finish and laser-etched timing marks
• Exceeds SFI 18.1 specifications and is SFI-approved
• Features 360-degree timing marks for precise engine tuning
• 7.800-inch outside diameter with external balance design
• Tunable and serviceable design for long-term performance
• Features huge replaceable rubber O-rings in a double-ring design for superior absorptive capacity

Whether you're building a full-blown sled puller or doing mild upgrades on your tow rig, this is one of the best upgrades you can do to your engine. Dyno tests have demonstrated that ATI Super Dampers retain as much as 45 horsepower over poorly-sized fluid-based dampers at 7,500 RPM.

Important Installation Note: This kit requires a special installation stud and washer that most common puller kits do not include. The installation hardware is available separately (ATI part number 918999D).