The Dolmar 664601570 Pulley is an original equipment manufacturer (OEM) replacement part specifically designed for various Dolmar chainsaw models. This genuine pulley ensures proper operation and durability within the chainsaw's engine system. It is compatible with models such as the Dolmar PS-350, PS-420, PS-420C, PS-420SC, and PS-420S. Constructed to precise specifications, this pulley measures approximately 38.1 mm in length, 38.1 mm in width, and 12.7 mm in height, with a weight of about 0.045 kg.