I have a 2005 7015 that had a deutz (German for piece of guano) I went through 3 engines in the past 4 years at 8000 each! On the up side I ground over 8000 stumps per year with it.
Last November I loaded it up and hauled it to Spartanburg and had Carlton do a total factory rebuild including retrofitting it with a new Kubota cost was 17k with paint and other things I had done. I thought it was a great deal seeing the price of a brand new one. The Kubota has 10% more power and nearly 35% more torque
So in short yes it is an excellent idea to upgrade. Not to mention 25% GPH less fuel consumption. So now the Carlton will work close to 8 hrs on a full tank of fuel. This is my '05 machine with a new Kubota engine and new paint on it!
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