Truck Tach Technical Information
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Mopar Truck Tachometer Repair Kit
Detailed information
Your original Mopar Truck tachometer has a paper printed circuit board inside it. The original printed circuit board is by now around 30 years old, and many of the electronic components on the board are likely to have degraded over time. The new fiberglass printed circuit board that comes in our kit uses modern integrated circuits that are more reliable and accurate than the original parts. The original circuit board has an adjusting potentiometer that is open to the enviroment, and these pots get noisy and corroded over time. The new circuit board has a high quality 15 turn adjustment potentiometer that is sealed from the enviroment, so they should last many years with no problem.
Once the tach is removed from the truck, it takes about 30 minutes to install the tach board. Since each tachometer meter movement is slightly different, we suggest that you calibrate the tach board using another RPM gauge so that you will have an extremely accurate tachometer.
- media:TruckTachManual.pdf
- Tach Kit Faq
- Mopar Action Tachometer Kit Article
- Mopar Collectors Guide Article
Tach Kit Contents: Tach board, detailed printed installation instructions,
PLUS a printed copy of the April 2005 Mopar Action article showing the step-by-step installation of the tach kit.
Also do not forget to order your Calibrator/Exerciser kit to go along with your tach. This way you will be able to calibrate your new tach or to exerise the needle.

