Electric Fan Wiring Kit with Waterproof Relay and Temperature Sensor Switch

This is a 12VDC electric fan wiring kit designed for automotive engine cooling applications. The kit is compatible with engines including small block and big block Chevrolet, Ford, Chrysler, and Pontiac V8s such as 265, 283, 305, 307, 327, 350, 383, 400, 396, 402, 427, 454, 472, 502, 260, 289, 302, 351W, 347, 352, 360, 390, 406, 428, 429, 460, 351C, 351M, 400M, 273, 318, 340, 360, 361, 383, 400, 413, 426W, 440, 455, 330, and 326. It fits 10-inch, 12-inch, 14-inch, and 16-inch electric fans. The system includes a 40-amp relay with a pre-wired harness, a thermostat switch that turns on at 185°F and off at 175°F, and a 3/8-inch to 1/2-inch adapter for the temperature sending unit. The wiring uses color-coded leads: red for 12VDC positive battery terminal, coffee (brown) for fan positive, black for ignition, and grey for the sending unit. The kit supports a maximum of 20 amps on 12-gauge wire, 30 amps on 10-gauge wire, and 40 amps on 8-gauge wire. For dual fan setups, two kits are required.