In many cases, you can identify a Zenith carb from the number stamped on a dime-sized tag riveted to the top of the carb:
For a visual ID, you can consult our Zenith model chart, or our application and tech guides below:
Look Up Parts by zenith Number
Zenith carburetor numbers were on a riveted dime size tag until about 1984. After that stamps and rectangular tags were used. Detailed information on finding and understanding Zenith carb numbers