420/430 Power Steering Pump Question

[sluhbmet]

I'm getting ready to purchase a few NOS parts for the later style power steering pumps that fit the 420/430 tractors. All of the parts are packaged with part numbers except for a vane rotor that I cannot make out the part number on the box due to age and shelf wear. Anyways, I've uploaded a pic of this part and was wondering if anyone can visually identify it as the correct rotor for the later Saginaw pump (the parts manual is lacking in detail). I've rebuilt several of the earlier style pumps with the big dish on top, but honestly have never worked on the newer (more modern) style. Any help is greatly appreciated.

Edit: It seems I cannot upload an image yet (because I am a new member). I will upload the pic of the rotor as soon as I am able.

Thanks,
sluhbmet