Herewith, ahem, I am pleased to report my findings: Under 1989 Caprice, with dash light, I find Airtex/Wells part no. 5G7 and Standard part no. PS212T, each using 3 wires, and each way under $10. before shipping. I chose the one with the small, long base, remembering that the hole in the block of my 292 is deep in a recess below the side cover. As long as your connecter plugs into it, you should be in business. If you check Rock Auto, under 89 Caprice, Electrical, Switches and relays, you can pull up pictures to see if your plug matches.