ATI Super Damper Harmonic Damper Part Number: ATI 918250

For use with 6PK1815 Belt

The patented ATI Super Damper is the only damper designed exclusively for high performance engines.

  • ATI's Super Damper for Mitsubishi Evo 4-9 4G63 engines
  • High horsepower street & race use
  • Dampens torsional crankshaft vibrations at all RPM levels
  • Protects against engine harmonics
  • Direct replacement for the stock OEM damper
  • 6.325” diameter, 12% overdriven
  • For correct belt length, use Carquest/Gates K060715
  • Custom timing gear hub replaces the stock timing gear
  • Laser-etched timing marks
  • SFI 18.1 Certified for competition use

Specifics: Mitsubishi 4G63 Engines ( EVO 4-9 )


  • Shell Material: 6.325" Aluminum, 6-rib drive, 12% Overdriven
  • Hub Material: Steel with Timing Gear drive, #916025, 1.263" Bore
  • Inertia Weight: 2.4 lbs, 3 ring


Mitsubishi EVO 4-9 "4G63"

SKU 205-408
Brand ATI
Shipping Weight 4.5000kg
MPN: 918250

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