External Regulator

P101-L Voltage boost harness for GM 4 pin regulators for a 1 volt increase for Lithium batteries

This voltage boost harness fits alternators with a GM 4 pin plug and is similar to our "plug and play" H104-L harness. The P101-L is the simplified version of the H104-L which makes it great for secondary alternator setups for a cleaner look or engine...

P101-L-1 Voltage boost harness for GM 4 pin regulators for a .5 (half) volt increase for Lithium batteries.

This voltage boost harness fits alternators with a GM 4 pin plug and is similar to our "plug and play" H104-L harness. The P101-L-1 gives you the ability to charge in the 15 to15.5 voltage range if you are currently charging in the 14.6-15-volt range. ...

P101-L-3 Voltage boost harness for GM 4 pin regulators for a 1.5 volt increase for Lithium batteries

This voltage boost harness fits alternators with a GM 4 pin regulator. The 1.5-volt increase has only been tested on the 4 pin regulators used in Mechman Alternators. If your current 4pin equipped Mechman Alternator voltage is warm/resting at 14.6...

P101-L-4 Voltage boost harness for GM 4 pin regulators for a 2 volt increase for Lithium or 14-volt AGM batteries

This voltage boost harness fits alternators with a GM 4 pin regulator. The 2-volt increase has only been tested on the 4 pin regulators used in Mechman Alternators. If your current 4pin equipped Mechman Alternator voltage is warm/resting at 14.6 volts,...

P101-L-5 Voltage boost harness for GM 4 pin regulators for a 2.5 volt increase for Lithium or 14-volt AGM batteries

This voltage boost harness fits alternators with a GM 4 pin regulator. The 2.5-volt increase has only been tested on the 4 pin regulators used in Mechman Alternators. If your current 4pin equipped Mechman Alternator voltage is warm/resting at 14.6...

External Regulator Harness

Two Pin External regulator harness. This harness is needed to connect Mechman alternators that have been made to be compatible with the 91102R Transpo regulator. It can also be used to connect Chrysler/Dodge/Jeep alternators with the same plug in picture...

Adjustable External Regulator w/ 2 Pin Alt Harness (NOT GM 2pin)

Adjustable 91102R external voltage regulator w/ 2 pin alternator harness combo.  This unit will work with most OEM and MechMan Chrysler units from 1999 - 2006, and will allow the user to adjust charging voltage anywhere from 13.8 to 19.0 volts...