I bought a 2012 X748, (271 hours) a couple months ago. Turns out the radiator is shot and possibly the water pump due to coolant leaks. The dealership has been great and will do 50-50 on part/labor to repair it. Even still this changes the difference in price between a very low hour X758 with warranty till till 2022. So today she is going down the road and will be back this afternoon with a X758, 60" deck with 42 hours on the clock.
The old girl. (The Heavy Hitch for 2" receiver and twin 5 gallon bucket holder are staying with me)