977

Hi everyone, I've just bought an early model 977 that has the d6 u style driveline. I was wondering if the serial number on the engine was correct. It is 9A703 . The serial number on the rear is completely different and it just says transmission group.i can't remember the whole number but it begins with 4h.does this sound correct?

The 977 with a motor like d6 u should be serie 20a and 9a is 6s bulldozer and power unit

So it must have been an engine replacement at one time.

Are you sure that's a 9A not a 9U?

Definitely an a.

My data shows 9A703 is, D6 Track-Type Tractor, Military. Equivalent is 8U d6, so it looks like a motor transplant out of a military tractor.