Product Overview
Our EV² tach harness filter is designed to be used to tie your ISSPRO diesel tach to your 91.5 Dodge factory sensor without using R8912-92 tach wiring harness sensor.
ISSPRO's new filter can be used to tie your tach directly into your Dodge 91.5 and above factory tach sensor. This filter is designed to be used with R8503, R12501, R12502, R12503, and R12505.