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About our Tachometers (RPM Gauges)

Life Time Warranty Made in the USA

Speedhut manufactures a large selection of Aftermarket Tachometers. We provide many customizable options to match your car, hot rod, or truck. Speedhut Tachometers are universal and can be adapted to almost any automotive application. Our Tachometers run on virtually all ignitions with no need of a costly tachometer adapter. We recommend working with a professional auto shop for Tachometer installation, custom mounting solutions, and custom dash fabrication. If you have some technical knowledge, most of the Tachometers are simple to install. Installation setups may vary due to specific applications or vehicles. Click here to see our Gauge Installation Instructions.

  Legacy
Tachometer
Revolution
Tachometer
Speedhut
Tachometer
Diesel (Hertz)
Tachometer
Freedom CAN-BUS
Tachometer (OBDII)
Playback
Tachometer
Lifetime Warranty
Customizable Options Available
Waterproof
Solid Aluminum Bezel
Programmable N/A
Compatible with all types of ignition
(Single Coil, Coil Pack, Coil On
Plug, or Tach output from
ECU/Aftermarket Ignition)
N/A N/A
Tachometer adapter NOT required N/A N/A
Internal Shift Light
Compatible with Auxiliary
Warning Light*
Compatible with Diesel Engines
Additional Details:   Includes:
Internal Shift Light
Economically Priced 3-3/8" Tachometer

For diesel engines only.

Requires one of the following:
• An alternator with an 'R' or 'W' terminal
A crank sensor signal
• A magnetic pulse sensor


(The Diesel Tach will read any signal greater than 0.6 volts in any wave form pattern generated from a tach signal source.)

Requires the following:
• A 2008 or newer vehicle
• ECU/ECM that supports CAN-bus (SAE - J/1979), For more information about CAN-BUS click here.
• Easy Installation, connects directly into the vehicle's 16-pin OBDII Data Link Connector.
• 12 Volt DC Power
The Playback Tachometer records and plays back the run for clear and precise data. The play back offers selectable playback speed including Pause and Rewind.

*Tachometers included in Dual and Quad gauges are not compatible with the Auxiliary Warning light.

Legacy
Tachometer
Tachometer - Works with both distributor and distributor-less ignitions WITHOUT requiring any special costly tach adapters.

 Features:
  • Practically universal, works with most gasoline engines
  • Most models are compatible with auxiliary mini-shift light (sold separately)
  • Customizable Bezel, Pointer (needle), and colors!
  • "LIFE-TIME WARRANTY on gauge electronics!"
Tachometers: 2 1/16" | 2 5/8" | 3 3/8" | 4" | 4 1/2"

Revolution Tachometer Tachometer with Internal Shift-Light - Works with both distributor and distributor-less ignitions WITHOUT requiring any special costly tach adapters.

 Features:
  • Practically universal, works with most gasoline engines
  • Internal shift-light
  • Peak RPM Recall
  • Most models are compatible with auxiliary mini-shift light (sold separately)
  • Customizable Bezel, Pointer (needle), and colors!
  • "LIFE-TIME WARRANTY on gauge electronics!"
Tachometers with Internal Shift-Light: 2 1/16" | 2 5/8" | 3 3/8" | 4" | 4 1/2"

Speedhut Tachometer Speedhut Economy Line Tachometer - Low cost 3-3/8" Tachometer. Works with both distributor and distributor-less ignitions WITHOUT requiring any special costly tach adapters.

 Features:
  • Fits into 3.375" (85mm) dash hole
  • Practically universal, works with most gasoline engines
  • Front side button
  • Customizable Bezel, Pointer (needle), and colors!
  • "LIFE-TIME WARRANTY on gauge electronics!"
Economy Line Tachometers: 3 3/8"

Diesel (Hertz) Tachometer

Diesel (Hertz) Tachometers - The Diesel (Htz) Tachometers will except any signal greater than 0.6 volts in any wave form pattern generated from a tach signal source.

Vehicle Requirements (Vehicle will require 1 of the following):
  • An alternator with an 'R' or 'W' terminal
  • A crank sensor signal
  • A magnetic pulse sensor
Features:
  • Peak RPM recall
  • Practically universal, works with most diesel engines
  • Customizable Bezel, Pointer (needle), and colors!
  • "LIFE-TIME WARRANTY on gauge electronics!"

Diesel (Hertz) Tachometers: 2 1/16" | 2 5/8" | 3 3/8" | 4"

Freedom CAN-BUS Tachometer (OBDII) CAN-bus Tachometer - Aftermarket Tachometer installation has never been easier! The CAN-bus Tachometer wires directly into the OBDII diagnostic connector. This tachometer uses the vehicle's ECU using the CAN (SAE J1979) protocol.

CAN-Bus Tachometer Features:
  • Plug and Play connection to OBDII connector
  • Requires a 2008 or newer vehicle
  • Available with or without an Internal Shift-light
  • Customizable Bezel, Pointer (needle), and colors!
  • "LIFE-TIME WARRANTY on gauge electronics!"


Works with 2008 and newer vehicles (Compatible with select older vehicles). CAN-bus wire harness with ODB2 connecter sold separately.

CAN-BUS Tachometers: 2 1/16" | 2 5/8" | 3 3/8" | 4"

Playback Tachometer Designed especially for Racing Conditions, this Tachometer is ready for aggressive runs on the track. The Playback Tachometer records and plays back the run for clearer, precise information. The play back offers selectable playback speed including Pause and Rewind.

With the Playback Tachometer you can:

  • Monitor and Record Engine RPM.
  • Recall Maximum RPM.
  • Scroll through the recorded run on the digital screen.
  • Adjustable Record Times 1, 5, or 10 Minutes!
  • Step through the stored run in real time or 1/3 time increments.
  • Control the gauge from a single, easy-to-reach external button to activate recording.
  • Record feature can be setup for a RPM threshold, to start recording at a designated RPM, so no recording time is lost.
  • Settable shift / warning LED light.
  • Pause run at any point or rewind & fast forward to examine run.
  • Examine run down to 1/100 of second.
  • Compatible with optional Auxiliary Warning Light.

CAN-BUS Tachometers: 4" | 4-1/2"

Playback Tach


More information on Speedhut's Tachometers:

There are many different electrical designs for current tachometers on the market. Most of these designs rely on a combination of resistors and capacitors to condition the signal so the tachometer hardware chip can accurately read the signal coming into it. Although this design works quite well for many applications, it falls short if the signal amplitude drops below certain voltage thresholds. Usually this threshold is around 12 volts.

Newer ignitions on the market today, like “Coil on Plug” type, tend to have a cut-off threshold voltage that is above the trigger voltage of the coil and therefore the tachometer does not see the input tachometer signal.

Gauge manufactures have tried to get around this by requiring customers purchase a tachometer adapter box that will read these lower voltages from the coils and convert it to a 12-volt pulse the tachometer can then read. This requires an additional purchase for the customer…not very cool!

All of our tachometers use our 'Smart Pulse' ™ technology. This exclusive technology was developed by our engineering team to remedy this situation. Speedhut's tachometers do NOT require a tachometer adapter box. We can do this through a combination of hardware and software filtering that sample the tachometer signal over 100,000 times a second! Our software algorithms within the gauge microprocessor then determine how much dynamic filtering to apply for the given tachometer signal, giving the user the most accurate and stable RPM readings of any tachometer. This allows the tachometer signal to work with an extremely wide variety of RPM signals, ranging from 1 volt to 600 volts in amplitude. Sine wave, pulse waves, square waves, etc. are all easily interpolated with our 'Smart Pulse' technology. We feel we have the most flexible tachometer on the market, that will work with any ignition system from the single coil mechanical points to “Coil on Plug” newer styles.

Throughout all our tachometer products, we utilize precision surface mount technology and microprocessor-controlled gauge movements. A high torque digital stepper-motor gauge movement drives the pointer. The stepper motor isn't phased by temperature or vibration extremes like many mechanical and 90 degree gauges can suffer from. Each of our tachometers are then assembled in an extremely shallow instrument case, allowing easy-on-the-knuckles mounting in your instrument panel, and every gauge is rigorously tested before being sold, which allows us to confidently offer a lifetime guarantee on each gauge.

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Speedhut Inc. is a BBB Accredited Gauge Supplier in Orem, UT