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Product # 5291

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AutoMeter vehicle speed sensors generate the signal you need to make installing an AutoMeter electric speedometer in your vehicle quick and easy. Compatible with GM and Chrysler transmissions with a 7/8" -18 threaded speedometer cable output, this vehicle speed sensor outputs a 16 pulse per revolution (PPR), 12v square wave signal. Featuring a mechanical cable output, this sensor has the ability to retain the mechanical cable in applications with mechanically driven cruise control.


  • 5391
SPEED SENSOR, MECH TO ELEC, GM & CHRYSLER, 7/8"-18 THREAD, HALL EFFECT, 16 PULSE is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Awesome I bought this a couple years ago, still working amazing. It was super simple to work in and gave me the ability to have the customer dash I wanted.
Date published: 2018-10-01
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I have a 4l60 trans and I have a mechanical autometer speedometer will this work

Asked by: Scooter
Hi Scooter, thank you for the question. To drive a mechanical speedometer with a 4L460E trans that features an electronic VSS (Vehicle Speed Sensor), you would need some type of electronic to mechanical conversion. Basically the opposite of our 5291 sender. There are a few out there in the marketplace, but we do not currently offer one.
Answered by: Matt from AutoMeter
Date published: 2019-01-18

Gday Autometer. I have one of these fitted to my Holden one tonner via a custom dash. I am running a GM Trimatic gearbox that has the push in type speedo cable, how does this unit attach to the gearbox? Is there a threaded adapter to suit??

Asked by: Troydy
Thank you for the question. Our 5291 is designed to thread onto a GM style 7/8-18 threaded style cable output. If you have a cable output/speedometer drive gear that is not threaded, it will need to be replaced (if possible) with a threaded style. Otherwise, if there is no electronic signal present in the form of a VSS, you will need to provide some type of alternative method to drive the speedometer like a 5289 GPS sender or a universal sender, such as our 5290.
Answered by: Matt from AutoMeter
Date published: 2018-12-05

Hello! I have a 79 cj5 with T18 tranny with a model 20 transfer case. Will this fasten right to that?

Asked by: 79cj5man
Thank you for your question. As long as it still has a drive gear with a threaded output a speedometer cable would normally attach to, yes, you can attach this directly to that.
Answered by: Zach from AutoMeter
Date published: 2018-11-29

Hi would this work on a w58 toyota supra gearbox? Thanks

Asked by: Julian
Hi Julian, thank you for the question. On a later model transmission that was originally equipped with a VSS, we'd recommend getting the proper Toyota VSS replacement. If it's an earlier model with a cable output, to run an AutoMeter electronic speedometer you'd need to run either a GPS speedometer or sender or our 5290 universal sender.
Answered by: Matt from AutoMeter
Date published: 2018-11-21

Can this speed sensor be mounted inside the cab under the dash of my truck? If so, is it noisey? Does it leak any kind of oil or fluids? Thank you.

Asked by: Anonymous
No, it mounts directly to the transmission, replacing the OEM mechanical speedo cable. Easy to mount, just "bolts" right on, but make sure you have the correct size - there are two. I mounted mine on a TH350 trans, which required the 7/8" version. Then run 3 wires, +12v (can grab that from the starter or battery, or fuse box), ground (can use a transmission case bolt), and the speed signal, which runs to the speedometer (can run it where the OEM cable you are replacing ran).
Answered by: RFS_ST
Date published: 2018-11-09

Have a 4L85E with the (TOSS/VSS) speed sensor and a 1388 electric speedometer.  Will the 5291 speed sensor work with this transmission and controller?

Asked by: Neill
Thank you for your question. Our 1388 speedometer can connect directly to the VSS on your transmission. 5291 would be used to convert from a speedometer cable to an electric speedometer.
Answered by: Zach from AutoMeter
Date published: 2018-09-28

I have a 1987 Jeep Wrangler with np207 transfer case with mechanical cable output. My tire size is larger than stock. With this sensor and the Autometer electronic speedometer could I calibrate for correct speed? Or would a GPS speedometer be recommended?

Asked by: Steven
Hi Steven, thank you for the question. Yes, this sender (5291) along with any AutoMeter electronic speedometer can be calibrated to your Jeep using our simple "push the button, drive 2 miles, push again" calibration. A GPS Speedometer would also work and would avoid any connection to the transmission and would be calibrated right out of the box.
Answered by: Matt from AutoMeter
Date published: 2018-08-20

I’m doing an ls swap in my 1983 Chevy k20 4x4 will this work to give a vss signal to the engine pcm?

Asked by: Balou
Thank you so much for contacting us. Unfortunately, this, or any of our senders are probably not going to work to drive your PCM. The PCM is looking for a sine wave signal at a very specific pulse per mile rate. This outputs a square wave signal at a different rate. These are designed to drive our gauges. You'll want to use the output from the transmission your PCM is looking for. Sorry for the bad news.
Answered by: Joseph At AutoMeter
Date published: 2018-07-10
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