Partssquare 175-185 Degree Electric Cooling Fan Thermostat Kit Temp Sensor Temperature Switch 40 amp RELAY KIT Replacement for : 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 New 175 - 185 degree electric fan thermostat relay switch kit for your cooling system, It is a 3/8" pipe thread. This kit includes everything you'll need to hook up to your fan, includes a brass adapter to install the sending unit, wires, relay switch, circut breaker, terminals and mounting screws. This kit is set up to turn your electric fan on at 185 degrees and shut off at 175 degrees and will work with any 12 volt system. High Quality Replacement Part, have no-worry 12 months warranty. <span class="a-text-bold">Fit :</span> 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 <span class="a-text-bold">Note:</span>For the two red wires,please connect the long red wire to the fan and the short red wire to the battery. 1.Mount the relay under the hood in a convenient location as to the fan as possible. Notice:Don&#039;t use the teflon tape or thread compoud on the thermostat or adaptor.For proper operation,the thermostat must ground threough the threads to the engine and the engine must be ground. 2.Install thermostat into the head or intake manifold.Route the black wire to thermostat and cut to length.Crimp the red terminal onto the black wire and attach to thermostat. 3.Route and connect the red wire to the fan &#034;+&#034; terminal or power wire coming from the fan motor printed &#034;to electric fan&#034;. 4.Mount the circuit breaker provided in a convenient location as close as possible to whichever power source(battery or large terminal on the starter solenoid)you are using for the fan relay. 5.Neatly route the red wire from the relay to one side circuit breaker installed in step 5. Cut to length and install using a small yellow ring terminal .With another small yellow ring terminal take the remaining red wire and connect the unused post on the circuit breaker to the battery source.This wire is printed&#034;to battery/constant hot&#034; 6.Route the brown wire to the ignition switch or the fan switch whichever is more convenient. 1.Turning off the engine, replace the new cooling fan temperature switches after the water in engine radiator cooled to the room temperature. 2.Avoid the external high heat source after installation. 3.Avoid sprinkling water on surrounding auto parts during the installation. 175-185 degrees Cooling fan thermostat relay switch kit 1.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. 2.Disconnect the wire terminal from the cooling fan switch. 3.Allow the engine to reach a coolant temperature of 196-203F (91-95C). 4.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 5-15F (3-8C) from the temperature that the switch first had continuity (switch closed). 5.If the switch does not operate within the range of the supplied information, allow the engine to cool below 100F (37C) and replace the switch.