2011 & Up Ford Coyote Engines with 20% OD Pulley Harmonic Damper

10 Rib 20% Overdrive NHRA Cobrajet Mod Motor Race Harmonic Damper

Part# 822
Only $575.00
Save $20 on #10205 damper install tool when purchased with Damper
SFI 18.1 Race damper with 10 Rib 20% OD Drive Pulley with no back AC pulley for 2011-up 5.0L NHRA CobraJet Mustangs. Designed for the Whipple Supercharger 10 Rib System.
Includes upgraded blower hub (comes with a seal for the timing cover) and double keys standard.


  • #10205 - Damper Install Tool - Add $55.00
    Save $20 if you buy our Coyote / GT500 Install tool when you buy your damper!


  • Diameter: 7.880"
  • Weight: 9.7 lbs
  • 6 Rib Standard Back Pulley
  • 10 Rib 20% Overdrive Front Pulley
  • Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.