Pandemic Update - Terminal Supply Co. is and will be open during this crisis. As an MRO supplier and wire harness manufacturer to Essential Service Providers across the nation, we are here to support your maintenance, repair and operations.

Relays & Flashers


We carry a full line of automotive relays from the world’s top companies. If you are searching for a 12 volt Hella relay or special Tyco/Bosch high amperage relay, our selection will help you find one to match your exact requirements. We carry micro relays, sealed relays, 24 volt relays, as well as all the connectors and terminals necessary to get the job done right.


Our automotive flashers are available in a variety of configurations. We stock 12 volt flashers in 2-terminal and 3-terminal versions, and for applications including LED lamps and for high lamp loads. Solid state flashers, alternating flashers, wig-wag flashers, and 24 volt flashers are also available.