ATI Performance Products ATI918454 Super Damper Harmonic Balancer Underdrive HEMI - 15% 5.7L

The ATI Performance Products Super Damper ATI918454 is a high-performance harmonic balancer designed specifically for 2009-up Dodge Ram, Durango, and Aspen trucks equipped with 5.7L HEMI engines. This patented crankshaft damper features 15% underdrive for improved performance and efficiency.

Key Features:

• Eliminates torsional crankshaft vibrations for smoother engine operation
• Aluminum inner and outer shells with steel inertia weight for optimal strength-to-weight ratio
• Eight computer-machined grooves retain proper durometer O-rings dyno tested for this application
• Exceeds SFI 18.1 specifications for racing applications
• Black zinc chromate finish for corrosion resistance
• Laser-engraved 360° timing marks for precise engine timing
• Tunable, rebuildable design for long-term serviceability
• Extremely efficient at all RPM ranges
• 7.480-inch outer diameter with internal engine balance

The ATI Super Damper uses elastomer O-ring technology instead of traditional rubber bonding, making it rebuildable and providing superior vibration control throughout the RPM range. OEM equipment on 392 Mopar crate engines, this damper is trusted for both street performance and racing applications. Note: This 15% underdrive pulley requires a serpentine belt approximately 1 inch shorter than stock length.