Hey wish thats all the trouble I've had. I purchased a left over 2015 nx4510hst nov 3 and Ihave put 4hrs on it myself 1hr was spent n regen. Hate to rant buthere the story. got it home they delivered nov 4 1st time ran would not rpm @260 was bout 2100 then when straight to limp mode, called dealer(bought jerseyville,il.)took 3 week to get back to me. I had to take to him on dec 8, said fixed on dec 28, got home. 1st time run regen ranabout hr called dealer said normal cause they had to force it to regen, 2 day's later started tractor ran about 3minutes whent into limp mode again. Called dealer he came got tractor this time still waiting. oh also when I first got it home seen it had 14.5hrs on it dealer told me it was still considered new(not happy) when he came and picup let it slip tractorhad been on lot 4 2yr and they used 4demp at fair and n parade hmm also day Ibought i wanted a cab he did not have 1 with hst told me I could buy 1 from kioti, called they do not make 4 nx and do not plan it. dealer going to call me tomorow told him do not want back but will pay difference with 1 with cab.gave 23,900with beet juice, told him will go 7,000more was 6000 when first bought,doethat seem bout right? We will fin out tomorow. PS SORRY GOIN ON BUT BOY SURE FELT GOOD AHHHH