This 12V-80A starter relay is compatible with specified 50cc scooter models including Ape Mix, Diesis, Fly 50, Free, Liberty, NRG MC3, and Quartz.It functions as a direct replacement for relay part numbers 584521, 58115R, and AP8224026.The relay provides a stable electrical connection to support starter motor and is designed to meet the physical and electrical specifications required by compatible vehicles.