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ATI DSM 4G63 and 4G64 Damper




Super Damper Harmonic Damper (High Performance Street) Part Number: ATI 918251

4G63 & 4G64 DSM (Eclipse, Eagle Talon, Plymouth Laser):
ATI has also designed a 6.325 damper -- Part # 918251 -- for the Mitsubishi Eclipse, DSM 4G63 & 4G64 for high horsepower street & race use. This new design is a direct replacement for the stock OEM damper. The outer shell is machined to utilize the factory belt set-up and mounts to the factory crank via a custom hub which replaces the stock timing gear. The damper's outer diameter is 12% larger than OEM. The factory lower timing cover will need to be trimmed for hub clearance.

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

  • Eliminates torsional crankshaft vibrations (that causes parasitic horsepower loss)
  • SFI 18.1 spec safety rating
  • Laser etched 360 degree timing marks
  • Black zinc chromate finished

Specifics: Mitsubishi Eclipse DSM - 4G63 & 4G64

  • Aluminum Shell
  • 6.325" OD
  • 3 Ring
  • Total Weight 3.30lbs
  • Inertia Weight 1.97lbs