The ATI 6.78-inch aluminum crankshaft damper is listed for Ford Coyote 5.0L engines with dual six-groove pulleys and includes an A/C pulley provision; it is specified as OEM size. The catalog phrasing notes two six-groove faces and A/C pulley compatibility, giving clear dimensional and accessory-drive cues for modern Coyote 5.0L Mustang and truck conversions.
ATI Damper - 6.78in - Alum - (2) 6 Grv - Ford Coyote 5.0L - w/A/C Pulley - OEM Size