The ATI 6.78in aluminum crankshaft damper for 2011+ Dodge 5.7L and 6.4L Hemi VVT applications is a three-ring direct-fit unit with a 6-groove pulley and a 6% overdrive pulley ratio. Sized at 6.78 inches, it is intended as a replacement for Hemi engines requiring the specified pulley diameter and modest overdrive to maintain proper accessory speeds and crank control.
ATI Damper - 6.78in - Alum - 6 Grv - Dodge - 2011+ - VVT - 6 Percent OD - 5.7L & 6.4L Hemi - 3 Ring