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ATI Super Damper Harmonic Balancer - 7.425in Steel 6-Groove for 2011+ GM Duramax (LML/LGH) - ATI917376

$498.50

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ATI Super Damper Harmonic Balancer - 7.425in Steel 6-Groove for 2011+ GM Duramax (LML/LGH) - ATI917376

$498.50

$498.50

Fits 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD equipped with the 6.6L Duramax diesel engine (LML and LGH codes).

The ATI Super Damper (MPN ATI917376) is engineered to eliminate torsional crankshaft vibrations, which are particularly destructive in high-torque diesel applications. Unlike standard OEM dampers that use a simple rubber strip prone to cracking and heat soak, this 3-ring unit features a precision-machined steel shell and internal inertia rings held by high-durometer elastomer O-rings. This design provides superior engine protection by dampening harmonics across the entire RPM range, safeguarding your main bearings and oil pump.

Designed as a direct replacement for the factory unit, this 7.425-inch damper is externally balanced and features a 6-groove serpentine pulley for perfect belt alignment. It is an essential upgrade for both heavy-duty towing and high-horsepower performance builds.

  • Manufacturer Part Number: ATI917376
  • Diameter: 7.425 inches
  • Shell Material: Steel
  • Pulley: 6-Groove Serpentine
  • Balance: External
  • Design: 3-Ring Elastomer
  • Engine Compatibility: GM Duramax 6.6L LML / LGH

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