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Founder, 1929-2014
Speedy Bill
Since 1952
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Electric Fan Sensor, 1/2 NPT

Specs
Material Type:
Brass
Overall Length:
2.75
Sold in Quantity:
Each
Under Head Length:
1.50
Thread Pitch:
1/2"NPT
Temp. Range:
Closed between 184 deg. to 216 deg. F
Electric Fan Sensor, 1/2 NPT

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Details

Reviews

Q & A

What's in the Box

This trick electric fan switch is a normally open temperature switch with 1/2" NPT male threads that screws into your intake manifolds water passage. When the coolant reaches 185°-215°, the contacts on the cooling fan switch close, activating a relay which directs current to your electric fan. When the engine cools, the contacts on the fan relay switch open, and the fan stops automatically. This radiator fan switch arrangement is not adjustable, but is more rugged than other temperature fan switch setups.

NOTE: This thermal fan switch must be used with a fan relay. If installed as a gounding fan switch, it will burn out. We suggest using this temperature fan switch with our relay 910-64044. Make sure the fan switch is mounted in the manifold or radiator tank so that the bulb is submerged in the HOT engine coolant.

910-64013 Instructions (PDF)

Customer Reviews

Rated 3 out of 5 by 8 reviewers.
RATING BREAKDOWN
8 reviews
5 Stars
4
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
4
RECOMMEND THIS PRODUCT:

Nessumsar
Long Beach, CA, USA
Product Rating

Product was DOA

April 16, 2014
So disappointed. This is the only 1/2 npt thermal switch with a 185-215* temp range that I could find. Unfortunately the unit was DOA and refused to close the circuit even with coolant temps in the 230* range; verified the sensor had a good ground with the fan relay as well. When I received the sensor the top male connector and the plastic base it passes through were able to spin independently of the brass base. Not sure if this is a feature, or a defect?
No, I would not recommend this product.
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newton
Greenbackville, VA 23356, USA
Product Rating

Switch dead in under two years

April 07, 2014
Sensor worked great at first then began to behave erratically and now is stuck in the NO position. Was used as a signal only, did not transmit fan power thru it (that went thru a 60A relay). Had completely new DI water and antifreeze in the system. Still not sure why it died.
Pros:
  • does it's job when it works
Cons:
  • doesn't work now
No, I would not recommend this product.
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Chas50
Jenks, OK, USA
Product Rating

never worked

April 26, 2013
installed sensor and relay along with an over-ride toggle switch started engine and watched temp guage. At 210 degrees fan did not come on. Removed wire on sensor touched it to block and fan came on. With ohm meter checked sensor plug to sensor base and no signal. Checked sensor base to block and had full scale reading. First bad part from Speedway. Excellent people, service, and products.
Pros:
  • Easy To Install
Cons:
  • didn't work
No, I would not recommend this product.
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gassermike
Verified Purchaser
Mounds, OK 74047, USA
Product Rating

very fragile second one just went out

October 19, 2012
very eratic opens at differnt temps second one just went out so i will put the fan on a toggle switch till i find a better product
Cons:
  • fragile and inconsistant
No, I would not recommend this product.
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miraclepieco
Grants Pass, OR USA
Product Rating

Perfect

September 28, 2010
It's simple and it works. Turned on just over 200 and off at 185. I'm ordering a second one right now because, in the process of switching from a 4-barrel to tripower, I broke mine while trying to remove it :-( Otherwise, it worked perfectly for over four years.
Yes, I recommend this product.
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DOUGHBOYCARS
Verified Purchaser
NEWMAN LAKE, WA
Product Rating

GREAT PRODUCT

May 09, 2011
GREAT PRICE
Pros:
  • Good price value
Yes, I recommend this product.
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hemi
Verified Purchaser
Dickinson, ND
Product Rating

first one didnt work, quickly replaced

May 08, 2012
first switch was grounded and fan stayed on, speedway sent me a new one in one day and it works great
Pros:
  • Improves Engine Efficiency
  • Lightweight
  • Easy To Install
  • Increases Power
Yes, I recommend this product.
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pips38
Vallejo ca
Product Rating

This part worked great

January 20, 2010
This part worked on my street rod
Yes, I recommend this product.
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Page 1 of 1
91064013

Product Q&A

1 questions : 1 answers

1 answers

this says it comes on at 185- 212 212 is a little too warm for me and when does it turn off

February 20, 2011

this says it comes on at 185- 212 212 is a little too warm for me and when does it turn off

Answers

February 23, 2011
Waymon
If you believe that this is too warm for you. We also sell, part number, 91064026-185. It is a 3/8 inch NPT sender and it turns the fan on ( via a relay ) at 185 degrees and turns off at 165 degrees. And we sell part number, 91064026-195. This is a 3/8 inch NPT sender and it turns on the fan (via a relay ) at 195 degrees and it turns the fan off at 175 degrees. We hope one of these will suit your needs.
Page 1 of 1

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910-64019 Instructions (PDF)

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