Please see attached what is difference between these two engines?
Didn’t find anything for either engine serial # at Deere power systems or the app. The 4276TT 005 is likely out of a 410C b/hoe rated at approx 75 hp. The older 4276TT01 not sure. Which engine is the original and which is the donor ? If you can get the injection pump tag info for both engines post them.