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Product # 6144

  • 2-1/16" (52.4mm)
  • Digital Stepper Motor Digital Stepper Motor
  • 0-1600 °F
  • LED
  • Download Download
  • Ships in 2 Business Days
  • Free Shipping Over $99*
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Watching your precise exhaust temperature can mean the difference between maximum performance and catastrophic engine damage. On high output diesel or forced induction applications, there are few gauges that are more critical. AutoMeter’s Digital Stepper Motor display combined with our high definition LED backlighting make viewing your exact exhaust temperature effortless. The included Type K thermocouple assures maximum accuracy and minimum response time. There is, quite simply, not a better measurement of your exact exhaust gas temperature available anywhere, for any price. A variety of included installation options and direct plug in harness simplify installation on any application.

Feature Points

  • Modern blue LED through-the-dial lighting provides clear visibility during nighttime use
  • The included Type K thermocouple assures maximum accuracy and minimum response time
  • AutoMeter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up
  • Gauge kit includes Type-K Thermocouple, wiring harness, thermocouple mounting kit, mounting hardware, and detailed instructions for installation
  • 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system


  • 3256

Wire Harness

  • 5251

Mounting Hardware

  • 2230
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Do you sell the probe only for autometer pyrometer cobalt am6144?

Asked by: Herald
Thank you for your question. The probe itself is not sold individually, it is only sold attached to the wire harness. The wire harness and probe is part #5251.
Answered by: Zach from AutoMeter
Date published: 2019-04-23

My probe has been damaged because it siezed in the holder. Can I buy just the probe?

Asked by: Jobe89
Hi Jobe, thank you for reaching out to us. Yes, the probe for the 6144 is available as model 5251.
Answered by: Matt from AutoMeter
Date published: 2020-01-13

Have 40' diesel pusher motor home. Already have Cobalt boost gauge, wanted to match it w/Cobalt pyro, but it's a 41' wire run from exhaust manifold to dash location. Do you have a pyro that will work accurately over that distance?

Asked by: 96-DP-Cummins
Thank you so much for contacting us. We have a pyrometer extension module we make that is compatible with our incandescent lit pyrometers: https://www.autometer.com/module-wiring-extension-for-stepper-motor-incandescent-pyrometer-gauges.html This will allow runs of up to 75 feet with no loss in accuracy. Unfortunately the Cobalt line is LED lit, and not compatible. Check out the Ultra Lite, Sport Comp, Phantom, Z Series or Carbon Fiber lines for gauges that will work. Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-04-09

How long is the probe on this gauge?

Asked by: Tylor
Hi Tylor, thank you for connecting with us. The probe wire length from gauge to probe is 10 feet. The probe itself, right at the bend is just under 3 inches. The probe we include is model 5251, which you can see here: https://www.autometer.com/replacement-probe-harness-assy-for-full-sweep-elec-stepper-pyrometer.html
Answered by: Matt from AutoMeter
Date published: 2018-03-23
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