New Diesel Tachometer for all 6.5's, all years, in all vehicles. If your truck did not come with a factory tach, or if your's isn't working, install our Diesel tach. It installs easily and includes everything you need. It will mount on your steering column with the included mounting cup, or anywhere desired.

Diesel Tachs work off of alternator rotation, unlike gas engine tachs that work off the ignition.

Here are the specs...