GM One Wire Alternator Harness

GM One Wire Alternator Harness

Upgrade your GM One Wire Alternator Harness with a high-output alternator from JS Alternators.

Key Features

• One Wire Connection — Connect to any ignition-switched 12V+ source to activate
• High-Output Performance — Built for car audio, marine, racing, and high-demand electrical systems

Fitment

• GM One Wire Alternator Harness

Notes

• This alternator uses a one wire connection — it is not plug-and-play with your factory harness

Pro Tip: Always upgrade your ground and charge wires when installing a high-output alternator to get the full benefit of the increased amperage.