New 175-185 degree electric fan thermostat relay switch kit , for your cooling system, 12V 40 Amp 4 Pin Relay & Pigtail,3/8inch and 1/2inch pipe This kit includes everything you'll need to hook up to your fannding unit, relay switch, circuit breaker, terminals,wires and mounting screws. This kit is set up to turn your electric fan on at 185 degrees and shut off at 175 degrees and work with any 12 volt system. Type:Electric Cooling Radiator Fan Relay Kit Cable Length:.165cm Fitment:for 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 Engines for 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 Engines Installtion: 1. Mount the relay under the hood in a convenient location as to the fan as possible. 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 + terminal or power wire from the fan motor printed to electric fan. 4. Mount the circuit breaker provided in a convenient location as close as possible to whichever power source(battery or large terminal on the solenoid)you are using for the fan relay. 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 to battery / constant hot. 6. Route the brown wire to the ignition switch or the fan switch whichever is more convenient. Colour:As Shown Material:Metal+ABS Package Contents: 1 Set x Electric Cooling Radiator Fan Relay Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.