ATI 918454 Super Damper 7.074" 15% Underdrive for 2009-2020 RAM 5.7L/6.4L HEMI

Vehicle Fitment

• 2009 Dodge Durango (5.7L VVT HEMI, RWD/AWD)
• 2009-2010 Dodge Ram 1500 (5.7L VVT HEMI, RWD/4WD - non-eTorque)
• 2011-2020 RAM 1500 (5.7L VVT HEMI, RWD/4WD - non-eTorque)
• 2014-2020 RAM 1500 (6.4L 392 HEMI, RWD/4WD)

Features

• 15% underdrive reduces accessory speed, enhancing component life
• Aluminum shell with steel inertia weight for balanced performance
• 6-rib serpentine groove for OEM drive system compatibility
• Includes new crank bolt for installation convenience
• Laser-engraved timing marks optimize ignition tuning accuracy
• SFI 18.1 certified for both street and racing applications
• Suppresses torsional crankshaft vibrations at all RPM ranges
• Rebuildable and tunable to support long-term, high-performance use

Specifications

• Outer Diameter: 7.074 inches
• Drive Type: 15% Underdrive
• Groove Configuration: 6-rib serpentine
• Shell Material: Aluminum with steel inertia weight
• Finish: Black zinc chromate
• Timing Marks: Laser-engraved
• Certification: SFI 18.1
• Includes: New crank bolt (as per High Horse listing)

Included Components

• 1x ATI 918454 Super Damper Harmonic Balancer
• 1x Crank Bolt (included)
• Note: Mounting hardware beyond the crank bolt is not included

Product Description

The ATI 918454 Super Damper is specifically engineered for 2009-2020 RAM trucks equipped with the 5.7L VVT HEMI (excluding eTorque models) and the 6.4L 392 HEMI. Its 15% underdrive design effectively reduces accessory drive speed - prolonging the lifespan of belts, pumps, and alternators without sacrificing engine performance.

Featuring an aluminum shell paired with a steel inertia weight, the 918454 maintains precision and strength under them, even when used with performance upgrades. It includes a new crank bolt for easier installation, laser-etched timing marks for accurate ignition calibration, and disrupts crankshaft vibrations across the RPM range. With SFI 18.1 certification, this damper is both street and track capable. Fitment confirmed through 2020; coverage beyond is unverified at this time.