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About PartsSquare
PartsSquare is one of the largest radiator cooling fan accessories in the auto parts aftermarket.
PartsSquare can offer an extensive line of High -quality ready to install radiator cooling fan accessories.
PartsSquare will continue to research and discover, manufacturing, supply and distribution of our products that ultimately delivers value to customers and society.
Fitment
- Fit : 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
- Note:For the two red wires,please connect the long red wire to the fan and the short red wire to the battery.
- 1.Mount the relay under the hood in a convenient location as to the fan as possible.
- Notice:Don't use the teflon tape or thread compoud on the thermostat or adaptor.For proper operation,the thermostat must ground threough the threads to the engine and the engine must be ground.
- 2.Install thermostat into the head or intake manifold.Route the black wire to thermostat and cut to length.Crimp the red terminal onto the black wire and attach to thermostat.
- 3.Route and connect the red wire to the fan "+" terminal or power wire coming from the fan motor printed "to electric fan".
- 4.Mount the circuit breaker provided in a convenient location as close as possible to whichever power source(battery or large terminal on the starter solenoid)you are using for the fan relay.
- 5.Neatly route the red wire from the relay to one side circuit breaker installed in step 5. Cut to length and install using a small yellow ring terminal .With another small yellow ring terminal take the remaining red wire and connect the unused post on the circuit breaker to the battery source.This wire is printed"to battery/constant hot"
- 6.Route the brown wire to the ignition switch or the fan switch whichever is more convenient.
- Installation tips:
- 1.Turning off the engine, replace the new cooling fan temperature switches after the water in engine radiator cooled to the room temperature.
- 2.Avoid the external high heat source after installation.
- 3.Avoid sprinkling water on surrounding auto parts during the installation.
- Package include:
- 175-185 degrees Cooling fan thermostat relay switch kit
How to replace it?
- SINGLE SWITCH MODELS
- 1.Locate the cooling fan switch near the thermostat housing on the left side of engine behind the distributor assembly. The switch wire colors should be green and black.
- 2.Disconnect the wire terminal from the cooling fan switch.
- 3.Allow the engine to reach a coolant temperature of 196-203°F (91-95°C).
- 4.Using a suitable ohmmeter or continuity tester, check for continuity between the two fan switch terminals. The fan switch should have continuity (switch closed) at the above temperatures. The switch should have no continuity (switch open) when the temperature drops between 5-15°F (3-8°C) from the temperature that the switch first had continuity (switch closed).
- 5.If the switch does not operate within the range of the supplied information, allow the engine to cool below 100°F (37°C) and replace the switch.
- WARNING
Submerging the electric cooling fan switch below the threads could damage the component. Coolant must be used for this test as the boiling point of water is below the temperature required for testing some of the sensors. Perform this procedure in a safe and well-ventilated area. Do not breathe any fumes from the heated coolant. Wear eye protection and use care to not come in contact with any of the heated components. Do not use a heating device that produces an open flame.
PartsSquare's cooling fan accessories
Not remanufactured or rebuilt.
High Quality Replacement Part.
Exact Fit for easy installation.
100% Brand New and tested prior to leaving the factory.
Exact Fit
Qualified: ISO/TS 16949.
After Replaced with PartsSquare:
Radiator Fan system working more stable when you driving.
Enjoying!
CAPTAIN OBVIOUS
2025-08-24 12:25:38
A major convenient time saver and perfect length wire. Works as it should and eazy to replace when needed. BUT, use auto tape on threads i got a slight dribble of coolant coming out of the threads. the product description says not to because of connection, well, the threads have nothing to do with connection. the sensor tip sends continuity to the top post where the wire connects too and mine works fine now with no leaks.UPDATE: 6/10/2020 - it appears i may have to toggle this thing. I had a 160 inline stat installed but it ran too hot at idle. So i replaced it with a 185 but the problem is this fan only comes on at 185 so it doesnt start cooling the radiator until after the stat opens and allows water to flow thru and im still running too hot and jumping to a 195 stat will not help my MPG.So, im going to take the motorhome on a hot day highway road test and try sitting in traffic here and there and see how things work with the 185 inline stat. if im still idling to hot i will just run a toggle switch or bypass the relay all together and run hot to my ignition switch. fan will turn on and off with the key and then ill hope i dont boil over after shutting the engine off wich it shouldnt because thats how horse power draining clutch fans work right !P.S. if the engine gets too got and its a realy hot day out sometimes the relay will not respond and if it keeps up im going to just toggle everything.
Blowfish
2025-08-17 17:16:44
Upon receiving this product, I liked that it included everything in the description. The harness, relay, and everything overall seemed of good quality. I didn't use the temperature sensor, since I wanted my cooling fan to be controlled by a switch inside my car. The illustrated portion of the instructions didn't make much sense, but the written part did. Follow that or check some YouTube videos on it, and it's easy as pie. Works as advertised!UPDATE: 2 weeks later, the relay died. Replace the relay with a higher quality one from an autoparts store.
Packer fan
2025-08-15 17:35:12
VERY IMPORTANT! The relay box is in two pieces. The box with the wires goes up against the wall and the then the second piece plugs into it. I didn’t know this and figured it out after many hours if racking my brain. Other than that, it’s easy to install and seems to works so fa.
UncleSmitty
2025-08-07 10:53:30
Nice heavy duty electric fan wiring kit. Comes complete with all you need to get your engine cooling fast. I will admit the instructions isn't the easiest to understand but with the help of Google and your tube they will assist you in wiring it up properly. I do want to add and it is a must the sensor that screws into the thermostat housing MUST be grounded in order for it to work. If it not grounded to the motor and the motor grounded to the body then it will NOT kick on and your motor will overheat. So make sure you have a good ground and you can't go wrong.
CAPTAIN OBVIOUS
2025-07-25 11:20:17
A major convenient time saver and perfect length wire. Works as it should and eazy to replace when needed. BUT, use auto tape on threads i got a slight dribble of coolant coming out of the threads. the product description says not to because of connection, well, the threads have nothing to do with connection. the sensor tip sends continuity to the top post where the wire connects too and mine works fine now with no leaks.UPDATE: 6/10/2020 - it appears i may have to toggle this thing. I had a 160 inline stat installed but it ran too hot at idle. So i replaced it with a 185 but the problem is this fan only comes on at 185 so it doesnt start cooling the radiator until after the stat opens and allows water to flow thru and im still running too hot and jumping to a 195 stat will not help my MPG.So, im going to take the motorhome on a hot day highway road test and try sitting in traffic here and there and see how things work with the 185 inline stat. if im still idling to hot i will just run a toggle switch or bypass the relay all together and run hot to my ignition switch. fan will turn on and off with the key and then ill hope i dont boil over after shutting the engine off wich it shouldnt because thats how horse power draining clutch fans work right !P.S. if the engine gets too got and its a realy hot day out sometimes the relay will not respond and if it keeps up im going to just toggle everything.
Blowfish
2025-07-03 21:54:49
Upon receiving this product, I liked that it included everything in the description. The harness, relay, and everything overall seemed of good quality. I didn't use the temperature sensor, since I wanted my cooling fan to be controlled by a switch inside my car. The illustrated portion of the instructions didn't make much sense, but the written part did. Follow that or check some YouTube videos on it, and it's easy as pie. Works as advertised!UPDATE: 2 weeks later, the relay died. Replace the relay with a higher quality one from an autoparts store.
Packer fan
2025-06-09 10:20:07
VERY IMPORTANT! The relay box is in two pieces. The box with the wires goes up against the wall and the then the second piece plugs into it. I didn’t know this and figured it out after many hours if racking my brain. Other than that, it’s easy to install and seems to works so fa.
UncleSmitty
2025-06-05 15:36:39
Nice heavy duty electric fan wiring kit. Comes complete with all you need to get your engine cooling fast. I will admit the instructions isn't the easiest to understand but with the help of Google and your tube they will assist you in wiring it up properly. I do want to add and it is a must the sensor that screws into the thermostat housing MUST be grounded in order for it to work. If it not grounded to the motor and the motor grounded to the body then it will NOT kick on and your motor will overheat. So make sure you have a good ground and you can't go wrong.
Solar Fabric
2025-05-30 14:06:05
Works Great .I was able to wire to an adjustable thermostat by bypassing( not using ) thermostat that came with product so that I can now set to temperature I need ..It is able to handle amperage for a 18 inch fan and 10 inch fan wired in series without blowing fuses which was problem I had before buying this ..I had asked multiple Auto parts stores and also my brother who is a mechanic if there was set up to pull power directly from battery but using relay from ingition so that fan would not run when ignition was off and they all said no such setup existed..They were all wrong ..I will post name of adjustable thermostat i use soon
TransAm84
2025-05-20 14:08:24
I live in Florida so the days and nights get pretty warm and on top of that I have a Trans Am hot rod that I need to keep cool. I bought this to install on a electric fan I put on my new radiator. In the picture you can see the thermostat in my intake (red top with wire hooked into it). This does kick my fan on at 185° and it does shut it back off at 175°. I took it for a drive yesterday when it was 92° outside and my car didn't get over 192° . I did also put a brand new water pump, hoses, radiator, radiator cap, and new fluids. This is a no brainer if you are putting an electric fan in, you need this so you don't burn your car to the ground. It has everything you need.
Jeremy
2025-04-25 14:32:18
Easy to wire up and install everything I needed came in the kit, but the instuctions aren't very good if your not familiar with electrical wiring.The actual thermostat switch didnt work at all and neither did the second replacement switch. I let the engine warm to 200 both times still nothing, I even tested the circuit and the supplied relay to make sure everything else is wired correctly by touching the switch wire (long ground wire) to the block and the fan kicked on perfectly, so I know the switch is defective. I just put a toggle switch in to activate when needed until I can find a good switch that actually works
larry s. Teague
2025-04-12 14:01:14
Great product. I used the relay and circuit breaker to wire an auxiliary cooling fan to my 94 dodge b350. Actually used fan and shroud from 2010 neon that was escaped.Not designed to replace existing clutch fan but to help the heat transfer at the condenser. Helps the AC to do its job as well as the engine compartment.
Benedicto
2025-03-26 12:44:04
Sin problema en la instalación, se ajusto perfecto
real tremblay
2025-03-23 20:32:49
satisfait
Jim
2025-03-19 12:00:14
Kit arrived ahead of due date, but, the sensor showing in kit says 185/175. The one I received was 200/185. Waiting for reply from them, or proper sensor.
Solar Fabric
2025-03-08 15:06:49
Works Great .I was able to wire to an adjustable thermostat by bypassing( not using ) thermostat that came with product so that I can now set to temperature I need ..It is able to handle amperage for a 18 inch fan and 10 inch fan wired in series without blowing fuses which was problem I had before buying this ..I had asked multiple Auto parts stores and also my brother who is a mechanic if there was set up to pull power directly from battery but using relay from ingition so that fan would not run when ignition was off and they all said no such setup existed..They were all wrong ..I will post name of adjustable thermostat i use soon
TransAm84
2025-03-05 17:36:57
I live in Florida so the days and nights get pretty warm and on top of that I have a Trans Am hot rod that I need to keep cool. I bought this to install on a electric fan I put on my new radiator. In the picture you can see the thermostat in my intake (red top with wire hooked into it). This does kick my fan on at 185° and it does shut it back off at 175°. I took it for a drive yesterday when it was 92° outside and my car didn't get over 192° . I did also put a brand new water pump, hoses, radiator, radiator cap, and new fluids. This is a no brainer if you are putting an electric fan in, you need this so you don't burn your car to the ground. It has everything you need.
Jeremy
2025-02-10 13:09:20
Easy to wire up and install everything I needed came in the kit, but the instuctions aren't very good if your not familiar with electrical wiring.The actual thermostat switch didnt work at all and neither did the second replacement switch. I let the engine warm to 200 both times still nothing, I even tested the circuit and the supplied relay to make sure everything else is wired correctly by touching the switch wire (long ground wire) to the block and the fan kicked on perfectly, so I know the switch is defective. I just put a toggle switch in to activate when needed until I can find a good switch that actually works
larry s. Teague
2024-12-31 15:37:04
Great product. I used the relay and circuit breaker to wire an auxiliary cooling fan to my 94 dodge b350. Actually used fan and shroud from 2010 neon that was escaped.Not designed to replace existing clutch fan but to help the heat transfer at the condenser. Helps the AC to do its job as well as the engine compartment.
Benedicto
2024-12-17 10:30:15
Sin problema en la instalación, se ajusto perfecto
real tremblay
2024-11-26 19:36:25
satisfait
Jim
2024-11-19 11:11:59
Kit arrived ahead of due date, but, the sensor showing in kit says 185/175. The one I received was 200/185. Waiting for reply from them, or proper sensor.
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