DK35vince
Super Member
All I know for sure is that my previous tractor (John Deere 850) was a made in Japan by Yanmar. Owned it for 15 years.Compare the Kubota and Kioti tractor/engine models that have a 83mm bore and a stroke of 92.4mm.
On the Kioti side I'm talking about the 4A200LWH engine found in the DK40. There may be others, I'm just picking this one.
This engine has the same bore and stroke as the engines found in the Kubota L 3200, 3800, and 4600s
That's the same engine displacement and internal piston movement down to a 10th of a millimeter, there can be no accidental coincidence of same internal combustion engineering.
Honestly I don't know which company or country came up with the bore and stroke first. You could say Kubota copied Kioti and I have no evidence to back it up, but lets be real, there is Japanese engineering and drivetrain components in most of these Korean brand tractors, and Japanese companies like Yanmar, Mitsubishi, and probably others are profiting from it. I'm did not say outsourcing drivetrain components to Japan makes a Korean tractor less of a tractor, but it does it play into the bigger picture when comparing brands and reading claims in threads like these that Korean tractors are built as good as Japanese brands and are cheaper to buy to boot.
My current tractor is Korean made Kioti DK 35. Have owned it for 13 years.
So far my Kioti has been excellent,Every bit as reliable and well built as my Japan made John Deere was.