The dry weight on the Kioti DK 40/45, HST, non cab, 4wd With Rops and no loader is 3925lbs, the loader weighs about 1200 lbs...load the rear tires + another 1100lbs ..= 6225lbs
IMO this was the sweet spot in Kiotis lineup for bang for the buck, they are very stron,g and have a very strong loader with standard quuick attach, they are a very nice tractor for the money... they are tier 3..no exhaust treatment, no computer, no egr, they are mechanically injected and governed...you have a throttle cable and a muffler, unfortunately they are discontinued for 2014.
All 2014 tractors are now tier 4 emissions with all the electronic hocus pocus, computer, dpf, EGR, some take urea etc......not sure if you would be interested in supporting all that but I wasn't
There are very few new DK series tractors left out there, If you have any inkling on a new tractor, I would encourage you to take a look at these, if you find one and like it, don't snooze on it,
once they are all gone that is it.
Good luck