I was fortunate enough to buy a box of miscellaneous new old stock Caterpillar parts and many are in original boxes with part numbers. I mainly collect G/J/T/U series D4's and so far have found very few parts for those in the box so I would like to share some with the members of ACMOC who may be in need, I'm not looking to make a profit just enough for a few bucks a piece and to cover shipping.
In my free time, which doesn't really exist I've been trying to look up each part to find what it might fit but am not having a lot of luck. I've scribbled a list of all parts with numbers on the boxes which I'll attach a picture of. If you happen to see a part number your interested in then message me and I'll send you a picture of it. I also have several sets of piston rings that are in original boxes with no part numbers so I'll work on measuring them and post the dimensions. 

2A3447 intake valve & 6F4922 exhaust valve suit D13000 used in 2U D8. They likely fit other D13000 applications, and I would imagine 3 cylinder and 4 cylinder variants of the 5¾"X8" engine.

6B7050 is the diagonal brace bushing for a D7D