Joywayus 3/8" NPT Male 185 to 175 Degree Fan Thermostat Temperature Switch, Electric Engine Cooling Fan Thermostat Temperature Sensor Switch, Fit for 10" 12" 14" 16" Fan

Installation tips:Turning off the engine, replace the new cooling fan temperature switches after the water in engine radiator cooled to the room temperature.Avoid the external high heat source after installation.Avoid sprinkling water on surrounding auto parts during the installation.How to replace it?Locate the cooling fan switch near the thermostat housing on the left side of engine behind the distributor assembly. The switch wire colors should be green and black.Disconnect the wire terminal from the cooling fan switch.Allow the engine to reach a coolant temperature of 196-203°F (91-95°C).Using a suitable ohmmeter or continuity tester, check for continuity between the two fan switch terminals. The fan switch should have continuity (switch closed) at the above temperatures. The switch should have no continuity (switch open) when the temperature drops between 5-15°F (3-8°C) from the temperature that the switch first had continuity (switch closed).If the switch does not operate within the range of the supplied information, allow the engine to cool below 100°F (37°C) and replace the switch.WARNINGSubmerging the electric cooling fan switch below the threads could damage the component. Coolant must be used for this test as the boiling point of water is below the temperature required for testing some of the sensors. Perform this procedure in a safe and well-ventilated area. Do not breathe any fumes from the heated coolant. Wear eye protection and use care to not come in contact with any of the heated components. Do not use a heating device that produces an open flame.

• 【Solid Brass】Made of high quality brass, this Fan Switch is anti-corrosion and very durable in using, ensure maximum strength and durability for long lasting usage.
• 【High Efficiency】This fan thermostat temperature switch activates your electric engine cooling fan when the temperature reaches 185 degrees and turns off at approximately 175 degrees.
• 【Standard NPT Thread】This fan thermostat temperature switch have 3/8" NPT male pipe thread. It is also equipped with 1/2" NPT male to 3/8" NPT female bushing for different size scenarios.
• 【Easy to Use】Meet the professtional specification, for stable performance & durable, direct replacement part for original blower motor resistor. Perfect fits for any of 10, 12, 14, and 16 inch fans including dual fans.
• 【Compatible Most Engines】265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 engines.