New production Polaris TX, Starfire, Charger, Mustang, drive sprockets. These USA made, injection molded, urethane drive sprockets are show quality, and quiet running. They are perfectly detailed from NOS original pieces, and guaranteed not to crack. These have been tested in 20 below weather. These will fit most all Polaris models from 1968 to 1973, with cleated tracks. These do NOT fit the Colt models with the wide shoulder design. The design is the lightweight design for the 1973 Starfires, but the design and dimensions are the same as most all cleated track models, even if they look different. These will still bolt it. 
Go by the measured photos, to check your exact part. I have also been told that they will fit the rare Chaparral racers, because they used Polaris sprockets. The listing and price are for two sprockets. If you order more pieces, the shipping cost can be adjusted, or overages refunded. See our other auctions for more new, and NOS Raider, Polaris, and AMF Ski-Daddler and Harley Davidson snowmobile parts. 
Thanks.