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Quick Specs

  • Size:3-1/8" (79.4mm)
  • Type:Air-Core
  • Range:0-7,000 RPM
  • Lighting:Incandescent
  • Instructions: Download PDF


Since 1957, AutoMeter has set the standard in performance, accuracy and durability with their legendary Tachometers. The absolute pinnacle of engineering and technology, it’s no wonder AutoMeter can lay claim to more motorsports victories than every other gauge manufacturer combined. The patented air core meter movement, wound in house to exacting standards, can move the needle from 0 – Maximum RPM in 333 milliseconds. An ultra-bright LED shift light guarantees you hit your shifts perfectly, every time. An inaugural inductee to the Hot Rod Speed Parts Hall of Fame, no other tachometer on the market has had anything approaching its impact on professional racing. Built for a lifetime of service under the harshest conditions, this is the no compromise tach for no compromise builds. When you’re ready for the best, there isn’t another choice.
Feature Points
  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • Compatible with most 4, 6, and 8 cylinder engines (2 - 4 pulse per revolution ignition signals) with points, electronic, and most 12V high-performance racing ignitions.
  • 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 tachometers provide quick and accurate readings with a needle so responsive it can go from 0 - full scale in 333 milliseconds
  • Domed Lens
Ships With
  • Bracket Included
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm


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What is the OD of the tach with the bezel?

Asked by: ricusa
Please see the link provided.
Answered by: Steve from AutoMeter
Date published: 2023-05-26

Hi  I’m looking for tach gauge with 0-7000 rpm  I need it with out any program or add resister to make it work with my ls1 engine 2000-2002 camaro  I need it for plug and play  Thanks 

Asked by: Raed
Raed, Unfortunately nothing we have would be a "plug and play" as all of our tachometers are universal. You would need to contact our tech support at 866-248-6357 for assistance on this since we do have a few options for tachometers for you.
Answered by: Steve from AutoMeter
Date published: 2022-04-29

Hi I am after tacho part number AU1473  3 1/8 would you send to Australia?? I am after 10 units we are restoring dash units for Australian made car called TORANA built in 1974 to 1978 cheers Rod 

Asked by: Rodney c/o Dustings
If you do not mind, please send an email detailing what you are looking for.
Answered by: Thomas From AutoMeter
Date published: 2022-03-21

Can this tach (model 1478) be used on a Harley? Would like to run it on my old school shovelhead that's been outfitted with a modern electronic ignition module. Unsure if it's compatible for V twin engines.

Asked by: 79chop
No, not compatible with the ignition nor designed to be used on a Harley. We would only recommend something from our Pro-Cycle line -
Answered by: Matt from AutoMeter
Date published: 2022-01-08

Do you have a harness for wiring this?

Asked by: Tony4one
Thank you for contacting us. Unfortunately we do not. However, you can use part #3299 to make the install easier.
Answered by: Sarah from AutoMeter
Date published: 2021-09-13

How do your tachs signal Diesel engine info?

Asked by: Ed Pruss
Thank you for your question. You would need our diesel tach adapter, which is model #9112.
Answered by: Natalia from AutoMeter
Date published: 2021-02-15

I installed a 1478 tachometer in my project 1965 Ford Falcon electric car .I am using a HPEVS AC 51 motor with a Curtis 1239e controller and an optic isolator. The tachometer worked great until a couple days ago. Is the tachometer compatible ?

Asked by: electricfalcon
Hi, Our tachometers are designed to work off the ignition system on a gasoline engine. The signal is a 12 volt DC square wave, 50% Duty Cycle, 2, 3, or 4 pulses per crankshaft revolution. The power supply needs to be a regulated 13.6 Volt DC. Assuming you can replicate those things with your electric vehicle, the tach should work for you. Thanks, Jim
Answered by: Jim from AutoMeter
Date published: 2020-06-27

is 79.4mm the face or body diameter?  My hole is 72.2 mm. will this fit?

Asked by: Marty rein
Hi Marty, thank you for the question. 79.4 mm is referencing the hole size. Unfortunately, 72.2 mm is a size we won't offer. The next size down from our 79.4 mm tachometers would be a hole size of 66.6 mm.
Answered by: Matt from AutoMeter
Date published: 2018-12-26
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