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Tickets are no fun. Calibrating a speedometer isn’t a great deal of fun either.

Quick Specs

Tickets are no fun. Calibrating a speedometer isn’t a great deal of fun either. AutoMeter’s Electronic Programmable Speedometer makes short work of both, providing an easy to install and easy to calibrate solution that will help keep your speed exactly where it needs to be. Compatible with most factory speed senders, you’ll wonder why you ever struggled with a speedometer before. Calibration is as simple as a two mile drive, or for even easier operation, AutoMeter’s GPS Speedometer Sender is a simple plug and play solution for any application.
Feature Points
  • Traditional incandescent lighting illuminates around the perimeter of the dial
  • Features lit LCD odometer - capable of registering one-million miles with two resettable trip odometers
  • Compatible with most two wire sine wave and three wire hall effect vehicle speed sensors.
  • Simple push button, 2 mile drive calibration. No dip switches!
  • Reprogram at any time to accommodate changes in gear ratio or wheel and tire combination.
  • Gauge kit includes bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
Ships With
  • Bracket Included
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm


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Will this work on a motorcycle? I have a 2008 Harley super glide. 

Asked by: Dockie
Thank you for your question. You will need to use our GPS module P/N: 5289 in order to obtain a correct signal for the gauge.
Answered by: Steve from AutoMeter
Date published: 2019-11-26

is a 4789 speedo compatible with the 5289 GPS?

Asked by: Arri
Thank you for your question. Yes, 4789 as well as all our electric speedometers, is compatible with our 5289 GPS module.
Answered by: Zach from AutoMeter
Date published: 2018-11-12

Will this fit a 1994 V6 Mustang?

Asked by: Rodolfo
Hi Rudy, thank you for the question. The 4789 Speedometer will adapt to your factory vehicle speed sensor, but it's not designed as an OEM replacement or direct fit for any specific vehicle. It will fit into a 3-3/8" diameter hole.
Answered by: Matt from AutoMeter
Date published: 2018-07-30

Hello - Will the #4789 work with a 1990 Jeep YJ 4.2L? Do I need a sensor as well? Thanks.

Asked by: Gerson
Thank you so much for contacting us. This gauge will work on your Jeep but will require the use of an electronic sending unit. There are a couple of different options. This one replaces the speedometer cable: This one works off of GPS: We used it in our recent YJ project which you can see here: You also have the option of getting essentially the same speedometer with GPS already built in: Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-06-13

Hello, I'm using this #4789 with a Holley ECU. What would be a proper "pulse per mile" setting that the Holley uses for speed signal output ? I used 4000ppm like f-body Camaros use stock, but speedometer wouldn't calibrate.

Asked by: Manoli
Hi Manoli, thank you so much for contacting us. The factory calibration on an AutoMeter electronic speedometer is 16,000 pulses per mile. You will see the current PPM calibration on the odometer of your speedometer for a second when power is first applied to the unit. Hope this helps!
Answered by: Joseph At AutoMeter
Date published: 2018-06-05
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