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DIESEL TACH ADAPTER

$123.31
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Quick Specs

DESCRIPTION:

This compact and easy to install module will allow you to easily adapt AutoMeter tachometers and shift lights and many other aftermarket RPM-based devices on your alternator-equipped diesel or non-standard ignition gasoline engine. Equipped with a sensor which is mounted to the alternator casing, a one time setup calibration is accomplished via push button interface on the module to synchronize the alternator signal with engine crank RPM. Perfect for diesel performance applications looking to add a tachometer or upgrade from factory equipment and a great problem solver for engine swap builds in need of working instruments. Pair it with AutoMeter's low-rev tachometer models to complete your diesel-specific gauge installation.
Feature Points
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REVIEWS:

Rated 5 out of 5 by from Worked well. I hooked mine up to a 4bt and wired into the oem for ranger tachometer.
Date published: 2020-06-15
Rated 5 out of 5 by from Perfect kit I bought this item like a month ago, I’m very pleased easy to install fast shipping recommended
Date published: 2020-05-08
Rated 5 out of 5 by from Gréât equipement Just what i am looking to make my tach Working with an old alternator Good product thanks
Date published: 2019-11-12
Rated 4 out of 5 by from Sensor works fine, easy to install. Had to use a 1K pull up resistor for the adapter to work with a VDO tachometer gauge. A circuit diagram of the adapter o/p circuitry would have been helpful.
Date published: 2018-04-08
Rated 1 out of 5 by from Poor Sdvertising Company should tell you that it will only work with their tachometer,would not have purchased if i had known . too expensive for Australia
Date published: 2019-12-13
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QUESTIONS:

I this installed on my 1983 K5 Blazer, 6.2 diesel. But is reading way high, even on the highest 6 adjustment. It is showing 1200-1300rpm at idle, instead of 600-650rpm that is actual idle. Can it be adjusted outside the dash control calibration?

Asked by: musketman101
Please give our technical support a call at 866-248-6357 for assistance on this
Answered by: Paul G.
Date published: 2024-06-04

I have a 3 3/8 Sport Comp tach and am trying to use it with my 81 VW 1.6 diesel. I have this 9112 diesel tach adapter, I have followed the instructions for calibration, but the green light just blinks and the tach needle is frozen, power and ground good.

Asked by: PigPen
For assistance please give our tech support a call at 866-248-6356.
Answered by: Steve from AutoMeter
Date published: 2023-09-27

I've installed this device on a VW 1.9TDI engine. Connected a generic tachometer for a 4-cyl gas engine (used it in another car, 100% works with a standard 4-cyl analog engine). After calibration, it indicates 2000 instead of 1000 rpm. Why?

Asked by: domator
You will need to follow the calibration instructions on this unit in order to have the tachometer read properly. You will also want to keep in mind that the tachometer will need to be set for a 8cyl motor (4PPR). For further assistance please give us a call at 866-248-6356.
Answered by: Steve from AutoMeter
Date published: 2023-07-20

Will this unit also work with a permanent magnet generator vs alternator?

Asked by: Bill2001
This will only work with an alternator.
Answered by: Steve from AutoMeter
Date published: 2023-07-05

What is required to re-calibrate the AUTOMETER DIESEL TACH ADAPTER_2650-1885, if the readings differs between the Test Unit (Monarch PT99) and Tach Adapter?

Asked by: Azulrios
There is no recalibration of this adapter that can be done by the user. If after following the instructions it is not working correctly, contact Tech Support at 866-248-6357.
Answered by: Jim from AutoMeter
Date published: 2023-06-03

Hello Pierre I have a 1984 w123 mercedes diesel 5 cylind without tacho just a clock is it possible to put your system with a classic alternator 1984 and a VDO mercedes tach i got recently from a 300d turbo D 1984

Asked by: pierre 300D
We do not have information about this product working on anything besides our electronic speedometers.
Answered by: Thomas From AutoMeter
Date published: 2022-04-01

Will this work the dual diesel alternator setup?

Asked by: Ericjo
We would like to know more information on what you are working on. We'd recommend reaching out to our Tech Team at [email protected] to help you on this matter.
Answered by: Sarah from AutoMeter
Date published: 2021-11-03

Do you have to use one of your tachometers with this or can I use a different brand along with it.

Asked by: Anonymous
Thank you for contacting us. We can only guarantee functionality and provide if you use an AutoMeter tachometer. The 9112 creates a 0-12V square wave which should technically function with other aftermarket tachometers designed for standard/electronic ignitions.
Answered by: Sarah from AutoMeter
Date published: 2021-11-02
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