Lawnboy L21ZSNC identification

[jkp62]

Any listings I find for the L21ZSNC are for serial number starting with K . My serial # is J323B0089 . Can anyone tell me when this was made , and if the J and K are parts interchangeable ? F engine , steel deck . Google was little help . Thanks

 

[Rivets]

Please double check the model and serial numbers you posted. I’m not finding anything with that model and serial numbers.

 

[jkp62]

Just double checked . All as listed . Yet , I have a manual coming for the L21ZSNC ( not necessarily J serial series ) . The manual says 1990 . BTW , are Lawnboy steel decks made of a better alloy than most other brands decks ? This one seems very rust resistant . I have been dealing with a steel Craftsman deck for the last few years , much , 13 years newer , seems like a much more ferrous metal .