ATI 918251 Super Damper 6.78" 4-Groove for 1990-1999 Mitsubishi Eclipse/Talon

Vehicle Fitment

• 1990-1999 Mitsubishi Eclipse (GS/GSX) (4G63T/4G64T, AWD)
• 1990-1999 Eagle Talon (E/Turbo AWD) (4G63T/4G64T, AWD)
• 1990-1999 Plymouth Laser (Turbo AWD) (4G63T/4G64T, AWD)
• 1990-1992 Mitsubishi Galant VR-4 (4G63T, AWD)

Features

• Eliminates crankshaft torsional vibrations for smoother operation
• Aluminum shell with steel inertia weight for strength and durability
• 4-groove configuration compatible with factory serpentine belt system
• Includes integral lower cam drive for precise timing control
• Laser-etched timing marks for accurate ignition timing
• Meets SFI 18.1 safety certification standards
• Tunable and rebuildable design for long-term use
• High-performance design for street or racing applications

Specifications

• Outside Diameter: 6.78 inches
• Groove Configuration: 4 grooves
• Material: Aluminum shell with steel inertia weight
• Finish: Black zinc chromate
• Timing Marks: Laser-etched
• SFI Certification: 18.1
• Weight: Approximately 6.5 lbs
• Includes integral lower cam drive

Included Components

• 1x ATI 918251 Super Damper Harmonic Balancer
• 1x Integral Lower Cam Drive
• 1x Installation Instructions

Product Description

The ATI 918251 Super Damper is engineered for the 1990-1999 Mitsubishi Eclipse, Eagle Talon, and Plymouth Laser models equipped with the 4G63T or 4G64T engine. It is designed to eliminate torsional vibrations in the crankshaft, improving engine smoothness, reliability, and performance under high-load conditions.

Constructed with an aluminum shell and steel inertia weight, this damper includes a 4-groove configuration for compatibility with the factory serpentine belt system and an integral lower cam drive for precise timing control. Laser-etched timing marks allow precise ignition adjustments, and its tunable, rebuildable design ensures long-term usability.

Certified to SFI 18.1 standards, the ATI 918251 Super Damper is suitable for both street performance and racing applications. Fitment is confirmed through 2024; 2025 coverage is unconfirmed at this time.