14PZ is the model number. I don't think the serial number is very important because the 14PZ doesn't appear to have ranges in the parts catalog. (some other models, i.e. 12PB, 14SB, 14SE, 14PB have range splits before and after 175,000 because there was an older green deck version {see pic below} prior to the silver deck. Not to be confused with the later green deck which used the JX and JE model prefixes) The sticker was originally placed on the vertical section of the deck shell right below the hinge for the rear flap. John Deere made them. If the deck shell is still good, it will work on any model in that family (14SB, 14SE, etc) Good decks are getting harder to find as the thin metal strip underneath, that the plastic discharge chute attaches to, usually breaks or the shell rots through from folks fertilizing their yards. Also, you can no longer get the original style wheels from Deere. Not necessarily a valuable collector item, per se, but if it's solid, it will last a long time! I have 4 of the 14SB's that run perfectly and one 14PZ without an engine because someone bent the crank from hitting a stump. I threw the engine away and kept the rest of it because it's in perfect shape and still has the original wheels. Here is a pic showing original style wheels and an arrow pointing to where the serial number would be. I work at a dealership and remember when these were new. This was the best series of walk behind mowers Deere ever built. Hope this helps!
