cciyu 185 TO 175 Degree Electric Radiator Engine Cooling Fan Thermostat Switch w/cap Fan Thermostat Temperature Switch Fits 318 340 360 361 383 400 413 426W 440 ENGINES Material: Aluminum.Eco design, Safe and reliable. Sending Unit Thread Size: 3/8-18 NPT Fan On Temperature (F): 185 degrees F. Fan Off Temperature (F): 175 degrees F Replaces part numbers: FITS 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