Package Include:
1X 3/8" NPT Thermostat
1X Wiring Harness w/ Mount
1X 60 Amp Relay
1X 30 Amp Circuit Breaker
3X Small Ring Terminals
1X Large Ring Terminal
1X Harness Mounting Screw
2X Butt Connectors
2X Sheet Metal Screws
1X Female Connector
As the picture shown

Thermostat Kit:
Work with any 12 volt system.
Universal fit for any automotive vehicle and electric fan.
Activates by grounding electric fans at preset temperature.
185'F turn-on temperature, 165'F turn-off temperature.
Probe typically threads into radiator, water outlet or manifold.

Thermostat Relay Kit Instructions：
RED + connect directly to battery.
WHITE wire to ignition switch power source.
BLACK goes to thermos switch.
BLUE wire goes to the Fans.

Description:
Material: Plastic and Metal
Voltage: 12V DC
165~185 degree electric fan thermostat relay switch kit, It is a 3/8" pipe thread
The kits includes everything you'll need to hook up to your fan
Comes on at 185º AND Turns off at 165º
The kits is set up to turn your electric fan on at 185 degrees and shut off at 165 degrees and will work with any 12 volt system
Fits for 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
Please check the size measurement chart carefully before making a payment
Please allow 0.1-0.5cm difference due to manual measurement
Instruction is not included.
Professional installation is highly recommended

About the Relay
Relay is an electrical control device that usually used in automatic control circuit. The relay in fact is an automatic switch which uses a smaller current to control a larger current. What's the Relay Used for Compatible with almost all automobiles and devices equipped with a 12V DC power supply. Like starter kills, power door lock/actuator control, change a low current output to high current, add ignition/accessory outputs,control motors/other electronics.
It is also suitable for automobile used for control, alarms, horn, headlight and more.

About the Relay Pins
Pins 85 & 86 - are used to turn 'on' the relay. You need a positive (+) and negative (-) power source to
turn on the relay.
- Pin 85 - is usually negative (-)
- Pin 86 - is usually positive (+)
Pin 30 - is either a (+) or (-) source that feeds Pin 87 or Pin 87a
Pin 87 - when the relay is 'on': Pin 30 and Pin 87 are connected