I think the part numbers are actually listed in the 944 (1985-1988) part number catalog. You can get that here
Genuine Parts Catalogue - Classic Genuine Parts & Literature - Porsche Classic - Dr. Ing. h.c. F. Porsche AG
Page 358 has the 8 pole connector housing part numbers. Not sure exactly which part you need otherwise I'd have just given you the part number.
GC