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Product # 3337

  • 2-1/16" (52.4mm)
  • Air-Core Air-Core
  • 100-250 °F
  • Incandescent
  • Download
  • Ships in 2 Business Days
  • Free Shipping Over $99*
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A high water temp can be detrimental to an engine. Heat is the enemy of performance and reliability. Keep tabs on your temps with the most trusted water temperature gauge on the market. AutoMeter’s advanced 1/8” NPT temperature transducer is included for a simple installation on any application.


Feature Points

  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system
  • Gauge kit includes 1/8” NPT temperature sender, 3/8” and 1/2" NPT adapters, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
  • AutoMeter’s race proven air-core electric instruments provide quick and accurate readings while keeping hazardous fluids outside of the vehicle

Sending Units

  • 2258


  • 3/8" NPT and 1/2" NPT adapter fittings

Bulb & Socket

  • 3220

Light Covers

  • Red 3214 & Green 3215

Mounting Hardware

  • 2230
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Is there a way to wire a warning light to this for over temp warnings?

Asked by: Mark R
There is only 1 light in this gauge, for the illumination. You would have to wire another light with a separate sending unit to turn the light on at a certain temp.
Answered by: Seth
Date published: 2020-03-04

Wat wire do you use on the back of the gauge to the sensor, didn't come with one

Asked by: mk Larry
Thank you for your question. Our short sweep electric gauges do not come with wiring. You can run any length 16-20 gauge wire from the spade terminal to the sending unit.
Answered by: Zach from AutoMeter
Date published: 2019-12-07

After initial install #3337 worked properly, reading 180*. During a single 4 hour drive needle gradually fell to zero. I found & fixed a loose ground, still not working. If I remove the ground completely then the needle recovers to proper temp of 180*

Asked by: wire
Thank you for reaching out to us. This may require some additional dialogue with our Technical Support Team. A couple things to check; on the back of the gauge there are 3 small nuts that create the connection between the terminals and the actual meter movement. Make sure those nuts are not loose and also ensure that nothing is touching or shorted between that very small area on the back of the gauge where everything connects. Also, keep in mind that sender must create a ground through the threads of the sender. If an excessive amount of sealant or Teflon tape is used, that can prevent a good ground which can negatively affect how the gauge reads. Give us a call at 866-248-6357 or send us an email here so we can go over some additional troubleshooting steps; https://www.autometer.com/contacts
Answered by: Matt from AutoMeter
Date published: 2019-12-07

The needle is no longer registering on the gauge and is grounded to the same block as the volt meter which works fine. Do you have a replacement sensor available for the 3337?

Asked by: ChadB
Hi Chad, thank you so much for contacting us. Most commonly, when a gauge like this reads low or not at all, it's because the sending unit lacks a good path to ground. Make sure the sending unit is free from any teflon tape which can keep it from registering. If it's remotely mounted (ie not directly mounted to the engine), you'll want to make sure you're providing an auxiliary ground to the body of the sender or the adapter that's being used. If none of that corrects it, I would recommend testing the gauge before buying any replacement pieces. With the gauge powered up and the sending wire removed from the sender, the gauge should read all the way cold. If you then touch that sending wire to ground, it should peg all the way hot. If that happens, the gauge is most likely perfectly fine and you mat want to try a replacement sender: https://www.autometer.com/short-sweep-electric-temp-gauge-sender-250-300-and-340-deg.html Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-06-25

Is this Gauge Mechanical

Asked by: Dick Bennett
Hi Dick, thank you for reaching out to us. The 3337 is electric. The comparable mechanical version would be either model 3331 (280 degrees) or 3332 (240 degrees).
Answered by: Matt from AutoMeter
Date published: 2018-05-04
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