tool number for D47U precup

I don't have a service manual to look up the tool number. Anyone out there know the Cat number of the tool .
This D4 has been sitting idle for near twenty years. Pony was stuck, but now free. Had the fuel tank clean and ready for some old cat yellow..making head way. now if the weather well hold for a week or so...all well be good.
Down side to this dozer is the tracks are froze up, a few of the link are not frozen, so there is hope.

Splined Socket 5F8353

Thank you for the number well call Cat tomorrow and get one on the way.

I have seen them on Ebay also, maybe aftermarket. Cats is $48.17