A sample from the products for the Primary Drive Gear include: B/brg Rad N/com, Plate,oil Pass Ac, Gear Assy,acg Dri, Fly Wheel B,acg.
The Primary Drive Gear assembly is constructed from several parts from which the Gear Assy,acg Dri is the most expensive.
In this schematic the "Seat,damper Sprin" is used most often.