Engine size question

Jinzo Ningen

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May 27, 2011
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I just happened to notice something odd while cleaning up the mower yesterday afternoon. The Kubota engine tag doesn't seem to jive and it has me in a quandary. My 'new' GH is a 721D, but the motor ID says:
1118raq.jpg


I brought it up to the previous owner and he had never even noticed it before. So... do I have a 21hp or a 22hp (722D)??? Any possibility that this was one of those end-of-year "bleed-over" deals when unofficial changes get made during production? Maybe I have a "721 and a half D" ???:laughing:
 
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