Now you point it out, yes, it does look like that

This would probably mean that this dozer (S11 using my numbering, “A” by Hanno’s) was a D6A, right? I’ve not been able to find a photo of it that shows the exhaust pipes clearly enough, but if, as Alex says, this is the arm type used on the D6 then it probably came from this dozer.
The other option is the dozer at the far side of this group (S53/“C”), which was a D6 if I’m not mistaken (though I only learned how to tell them apart by reading this thread

). On the other hand, if that had been disassembled, why would they drag the blade all the way here?