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Product # 3911

  • 5" (127mm)
  • Air-Core Air-Core
  • 0-10,000 RPM
  • Incandescent
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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 - 10,000 rpm in 333 milliseconds. 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 the front of the dial
  • 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system
  • 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
  • Compatible with 1 - 4 pulse ignition signals (2-8 cylinder engines) with points, electronic, and most 12V high-performance racing ignitions.
  • Optimize use of your engine's power band and improve vehicle run performance and driver gear changes with a rapid response, high visibility user-programmable shift light.

Bulb & Socket

  • 3219

Mounting Hardware

  • 3209
5" PEDESTAL TACHOMETER, 0-10,000 RPM, ULTRA-LITE is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Very responsive tach! I bought this tach for the looks and got the most impressive working tach I've ever seen. It is so responsive and fast action that I noticed my engine had a slight misfire that I never noticed before. By improving my ignition system I was able to get rid of the misfire and it's all due to the amazing accuracy of the tach. More than a tach, it's an engine diagnostic aid!
Date published: 2018-08-11
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will this tach work on harley v twin ?

Asked by: evosteveo
Thank you for your question. We will need some more information regarding your application. Please contact our support team at 866.248.6357 or https://www.autometer.com/contacts
Answered by: Zach from AutoMeter
Date published: 2019-11-18

Hello I have this Tacho, already in car when I bought it, Problem is when car turned off Tacho sits on 1000rpm, also at idle the Tacho sits around 4500rpm, is this a fixable problem? Motor is a SBC and has a MSD Ignition. Thanks Tony

Asked by: TonyA12
Thank you for your question. I would recommend contacting our support team so they can do through some troubleshooting with you, specific to your application. You can contact them at 866.248.6357 or https://www.autometer.com/contacts
Answered by: Zach from AutoMeter
Date published: 2019-09-05

Did this tach come with a plastic mount for the inside of a cluster panel. Bought it from a friend and don't have anyway to mount it. And is it possible to purchase?

Asked by: Joe565
Hi Joe, thank you for the question. The 3911 is a pedestal mount tachometer and only ever came with our 3209 mounting strap, which is shown here and can be purchased separately: https://www.autometer.com/tach-shock-strap-kit.html To mount it in dash would usually require a little creativity. If there was enough room behind the dash and tachometer, the 3209 can sometimes be used to hold it in a dash or cluster.
Answered by: Matt from AutoMeter
Date published: 2018-12-26

Can I get a spedometer that matches

Asked by: Jefferson s10
Thank you for your question. There are a couple different speedometers that match the 3911 tachometer. There are two 5" mechanical speedometers that match, part #4495 goes 0-160mph, #4496 goes 0-200mph. There are also two 5" electric speedometers that match, Part #4489 which goes 0-160, and #4490 which goes 0-200mph. Additionally, there is a 5" GPS speedometer that matches, part #4481 and it goes 0-140mph. If you have any further questions regarding this or need any assistance choosing which one is best for your application, please reach out to our tech support team at 866.248.6357 and we will be happy to help you.
Answered by: Zach from AutoMeter
Date published: 2018-11-13
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