Fits for 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 enginesFits for 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 enginesInstallation Instructions.NOTE: Install the relay under the hood to allow for the fan.CAUTION: Do not use PTFE tape or string connections on the thermal controller or adapter. For proper operation, the thermostat must be grounded to the engine with the threads grounded to the engine.Install the thermostat into the head or intake manifold. Connect the black wire to the thermostat, cut to length. Press the red terminal onto the black wire and connect to the thermostat.Connect the red wire to the fan + terminal or power cord from the print to the motor of the electric fan.Install the circuit breaker in a convenient location as close as possible to the power source used for the fan relay (battery or large terminal on the starter appliance).Use the small yellow ring end to cut the length and install. Using the other small yellow ring terminal, you can connect the remaining red wire and connect the unused post on the circuit breaker to the battery source.This wire is printed on the battery / standing heat.Connect the brown wire to the ignition switch or fan switch, whichever is more convenient.Colour:As shownMaterial:Plastic + MetalPackage Contents:1 x Auto Relay KitOnly the above package content, other products are not included.Note: Light shooting 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.