
The AutoMeter RPM signal tach adapter is a compact module that makes aftermarket tachometers and RPM-based devices work on alternator-equipped diesel and non-standard ignition gasoline engines. It uses a sensor mounted to the alternator housing and a push-button calibration to synchronize alternator signal to engine crank RPM. Ideal for diesel installations, engine swaps, or pairing with low-rev tachometers to restore working instruments.
AutoMeter RPM Signal Tach Adapter for Diesel Engines