This output driven shaft / driven shaft assy is typically found in the Reduction Box Assy section of several part manuals. Commonly used for but not limited to water cooled 4-stroke 172MM / 250cc engines. It is most popularly known for its use in CF Moto 172MM / 172MM-B, and Hammerhead SS250, as well as many other brands of ATVs, dirt bikes, scooters, go karts (buggies), and engines with alternative profile names.
Manufacturer Part Numbers:
CF Moto Part Numbers: 0130-064000, 172MM-B-064000, 172MM-B-064000II “DRIVEN SHAFT ASSY”
Hammerhead Part Number: 172MM-B-064000 “DRIVEN SHAFT ASSY”