75hp

How is it that i need to replace a simple AC rheostat on my friends 2 year old tractor and I can’t? What tractor company would force owners to spend $2000 for an entire panel of switches because one ($35) Switch gailed prematurely? HVAC CONYROL PANEL E007517550D91

Hi there, I am new to the tractor game, I am trying to take my time and absorb as much information I can before I pull the trigger on a tractor. Can someone explain to me why some tractors (MF 4707 / NH Workmaster 75) don't need a DPF and others in the same class (5075e / M4D-071) have a...