Plugs & Harnesses

This handy little adapter harness allows you to plug an oval 4 pin late model GM alternator in to a Rectangular CS130 or CS144 vehicle harness. This harness is required in order to install certain high output alternators on GM tru…

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 …

This voltage boost harness fits 1996-2004 GM Trucks and SUV's withoval GM alternator plug. The longer blue wire gets connected to an ignition switched 12V+ source to turn the alternator on and off with ignition. This harness can b…

Harness used to connect our (male)GM 4pin equipped Denso/Hairpin alternators to (female)Ford 6G vehicle harness.

This handy little adapter harness allows you to plug an oval 4 pin late model GM alternator in to a Rectangular CS130 or CS144 vehicle harness. This harness is required in order to install certain high output alternators on GM tru…

Harness used to connect GM oval male to Ford 3G/4G female plug.

This is a simple pigtail that plugs into any oval shaped 4 pin GM alternator plug. The yellow wire gets connected to any ignition switched 12 volts. This is a great way to easily wire multiple GM alternators onto a vehicle, or ada…

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 …

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 w…

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 war…

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 w…

This module is for use on GM vehicles equipped with a 2 pin regulator and a RVC sensor (Regulated Voltage Control). Simply plug module into your vehicle's factory harness and tie out of the way. This will eliminate the check charg…