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 relay under hood in a convenient location as to fan as possible. 2. Install thermostat into head or intake manifold. Route black wire to thermostat and cut to length. Crimp red terminal onto black wire and attach to thermostat. 3. Route and connect red wire to fan + terminal or power wire from fan motor printed to electric fan. 4. Mount circuit breaker provided in a convenient location as close as possible to whichever power source(battery or large terminal on solenoid)you are using for fan relay. 5. Cut to length and install using a small yellow ring terminal. With another small yellow ring terminal take remaining red wire and connect post on circuit breaker to battery source. This wire is printed to battery / constant hot. 6. Route brown wire to ignition switch or fan switch whichever is more convenient. Colour:As Shown Material:Metal+ABS Package Contents: 1 Set x Electric Cooling Radiator Fan Relay Kit Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.