Well my info is for europe, usa, australia:

90301-07001 O-ring
90480-13005 gromet
23291-41010 insulator

These three rubber bits are for the injectors in a AE86 4A-GE. They are the same parts for AE82, AE92, AE101. In fact they are the same seals used for most Toyotas of that era. Everything you can think of, 4A-FE, 7A-FE, 1UZ, 7M, 3S etc. Everything.

But this number:
23291-41010 is the insulator for 4A-GE only in AE92 from 8908 to 9211. (August '89 to Nov '92).

Whats your injector number? You need a new parts man.