1980-1981 Chevrolet C30 L6 4.1L 12si High Output Alternator JS Alternators The regulator must be installed

The regulator must be installed in the alternator

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1980-1981 Chevrolet C30 L6 4.1L 12si High Output Alternator JS Alternators The regulator must be installedFitment: This is a direct fit high output alternator for the 1980 1981 Chevrolet C30 4. 1L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high output alternator, and the other side will plug into the factory plug. NOTE: If you require charging at a certain voltage setpoint, we offer a selection