i don't think thats 4 d4, more like 10, 15,20,28, 22, just guessing here. check out casting numbers to cross reference parts book, best to find out casting number on the paper pulley hub. good luck.
I saw the D4 that it came off of and the owner can verify it.
Dennis
I don't think it fits a D4 either. Some casting mumbers would be helpfull.. Jon