Overview Reviews Product Description Harmonic Balancer - Serpentine Super Damper - 8.900 in OD - SFI 18.1 - Aluminum / Steel - Black - Internal Balance - Mopar Gen III Hemi - Each Product Videos Custom Field Product Reviews Write a Review Write a Review × ATI PERFORMANCE ATI PERFORMANCE 6.2L Hemi 8.900 Harmonic Damper - SFI ATI918485 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *