Log In
Search suggestions

    My Vehicles

    Add a Vehicle

    Find a Store

    Select Store

    SAVE 20% + GET A $20 GIFT CARD ON ONLINE SHIP-TO-HOME ORDERS OVER $100.

    Use Code: BLKFRIDAY

    See Details

    Temperature Switch

    Temperature Switch Operation:

    A bi-metal, heat activated, switching device that controls an electrical circuit based on engine metal/coolant temperature. It controls the cooling fan(s), temperature light or gauge, fuel mixture, emissions controls and electronic-control unit functions. It's usually made of brass or stainless steel and uses a tapered pipe thread (NPT) for dependable sealing.

    How To Instructions:

    Test - Give it an in-depth diagnosis.
    Replace - Out with the old, in with the new.

    Automotive Glossary
    Check out one of the largest dictionaries of automotive terms
    on the internet.

    AutoZone Logo