It's a NPR, Numerical Parts Record.

I dug out one of the cranks and found the part# 2A0884. It is a little hard to read and it might be 2A0984. I can find no info on the first # and find "counterweight" for the second #. Anybody out there have any info or suggestions. If it makes any difference it says 2A884 on the crank but I added the "0" when surfing for info.

I dug out a crank and found a part# 2A0884. It's a little hard to read though and maybe it could be 2A0984. I can't find any info surfing the web for the first #. The second # is apparently a "counterweight"? I now have Piston #s 1H5888, Rod #s 7B6225, and liner #s 8B0375. With these #s can I determine if these items match and will they fit my D8r 6 cyl. or be two sets (one for sale) for my for my D6 2H 3 cyl. eng? What is my next move?