Shelby GT500 5.4L/5.8L Mod Motor Harmonic Damper with 15% Overdrive Pulley

Part# 828
Only $700.00
Save $20 on #10205 damper install tool when purchased with Damper
SFI 18.1 Harmonic Damper for Ford Shelby GT500 5.4L/5.8L with 15% Overdrive Pulley.


  • Dual Keyway Option - Add $20.00
    Add dual keyways for Supercharged or Extreme Duty Applications. Requires double keyed crankshaft snout.
  • Super Duty No Relief Hub Option - Add $15.00
    The super duty no relief hub has the relief at the rear of the hub removed for additional crankshaft to damper hub contact for high horsepower supercharged applications. The super duty no relief hub does require extra caution upon installation in order to line the crankshaft keys up with the damper hub keyways.
  • #10205 - Damper Install Tool - Add $55.00
    Save $20 if you buy our Coyote / GT500 Install tool when you buy your damper!


  • Diameter: 8.13"
  • Weight: 11.3 lbs
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
  • NOTE - This damper will not fit the 2013 GT500's that are equipped with the "Track Pack" option.