External Regulator

Please read the installation instructions CAREFULLY before purchasing this unit. It is extremely important to install this product just as the instructions state to avoid damage to the unit and/or the alternator itself. This WILL NOT work with 2005> GM 2pin regulators or newer Mopar 2pin regulators.

Installation Instructions, CLICK HERE!

For charging CMAX style Lithium batteries, we have a simple plug/play harness(P101-L) to achieve 15.5-16 volts on GM 4pin regulator style alternators. We recommend this option for UNDER 16 volt operations.