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Product # 2643

  • 2-1/16" (52.4mm)
  • Air-Core Air-Core
  • 240 Ω Empty / 33 Ω Full
  • Incandescent
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One of the most necessary gauges in a dashboard, AutoMeter makes it easy by offering a variety of different fuel level gauges to match the resistance range of your existing fuel sending unit. Our patented air core meter movement receives extra dampening to help combat the effects fuel slosh in non-baffled tanks. Don’t get stranded down the road or at the track.


Feature Points

  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • Works with 240E/33F ohm senders, including AutoMeter 3262
  • 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system
  • Gauge kit includes 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

Bulb & Socket

  • 3220

Light Covers

  • Red 3214 & Green 3215

Mounting Hardware

  • 2230
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What are ohms for your 250-1 fuel gauge

Asked by: Jim boy
0-90 per auto meter
Answered by: Jim Boy
Date published: 2019-07-28

Is Fuel Gauge 2643 the correct fuel gauge for a 1997 Jeep Wrangler? The FSM indicates 20 ohms at FULL, 220 ohms at EMPTY. 2643 specs indicate it requires FULL 33 ohms, EMPTY 240 ohms. Would this require a seris wired 13 ohm resistor.

Asked by: Kayak22
Thank you for your question. This gauge will work with your application and it will read close, but not perfectly. For a truly accurate reading I would recommend part #2656
Answered by: Zach from AutoMeter
Date published: 2019-02-25

Hi.i have a 1982 gmc diesel with duel tanks and need to know where purple wire goes

Asked by: Mike91
Hi Mike, thank you for the question. For a 1982 GM, your sender is likely a 0-90 ohm, which would require gauge model 2641 and not this 2643. We won't have any specific information on your 1982 GMC, but you should have a single wire that would have run to the dash, to the original fuel level gauge that would connect to the sender terminal on our gauge. It looks like this may have been a tan wire in your 1982.
Answered by: Matt from AutoMeter
Date published: 2018-07-19

Does this fuel gauge act as a fixed current source? Is a voltage divider created between the sender and a fixed resistor in the gauge? I need to know this, because I would like to datalog the fuel level, by measuring the voltage across the sender.

Asked by: pmbrunelle
Thank you for connecting with us. Our fuel level gauge simply works like an ohmmeter. It requires 12V to power the meter, but it simply reads or measures resistance across the sending unit and ground. If you need additional information or if this didn't fully answer your question, give us a ring at 866.248.6356, hit the Chat link at the top of the page or you can email us here: http://www.autometer.com/resources/index/ask_a_question
Answered by: Matt from AutoMeter
Date published: 2018-03-08
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