Starter Part Number for 1998 H1
 

I'm having trouble finding the correct part number for the OEM starter/solenoid unit. I'm looking for the original, heavy-duty, sealed unit and these are the part numbers I have found online, but want to confirm before I purchase. Any help would be appreciated (or if you know where I can get one)
Thanks in advance....

PRESTOLITE - 46-3767
AC DELCO 323-447