Two options from Toyota for 1FZ-FE engined 80 series trucks in NA:
3 core brass: 16400-66040 (8/1992-1/1995)
2 core aluminum: 16400-66081 (1/1995-1/1998).
Both are available from Toyota.
Both are T.Rad (Toyo Rad).
What are the options for a '92 3F-E?