This auction is for an NOS Tomco carburetor choke thermostat part number #9166. We have no information on this part; you will have to do your own research. If you have any information, feel free to drop us a line. This carburetor part is guaranteed brand new and has never been used. We also have 1000s of carburetors in stock. If you don't see the carburetor you need feel free to e-mail us . We also buy and swap carburetors. S&H is a set $7.95 provided being shipped within the Continental U.S. We accept Paypal, Visa and Mastercard. Happy Bidding! B5