john deere 4300 4310 4410
Join Date: Jul 2004
Posts: 542 Quarryville PA
Any JD/Yanmar techies out there that know the precise difference between the engines in these models. They look to be the same engine. The 4400 had a larger one but the 10 series seems to have taken the 4300 engine. I want to know what makes the 4410 have the higher HP. Is it just the fuel pressure setting on the pump? I asked the dealer and all I got was "blah blah EPA, blah blah $10,000 fine, Blah blah we don't even get into the injection pump or know anything about it".
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