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Thread-in probe electric fan grounding thermostat switch sender.
Closes electrical circuit at turn-on temperature and grounds fan.
Various sizes and temperatures to suit your car or truck project.
Turn-off temp is always 15 degrees less than selected turn-on.
Universal sizes fit radiator, oil cooler, condenser, water hose fitting.
Brass thread-in probe grounding thermostat kit. Closes electrical circuit at temperature and grounds fan. Various temperature ranges to suit your project needs. Single .25 inch standard pin electrical terminal. Measures coolant, oil, water temperatures. For engine block, radiator, cylinder head, manifold, outlet tube. Complete thermostat wiring kits listed in our store.