1980 Buick Century V8 4.9L 12si High Output Alternator JS Alternators 2GA or 4GA

2GA or 4GA

This is a direct fit high-output alternator for the 1967-1978 GMC K15 4

This is a direct fit high-output alternator for the 1970-1988 GMC G3500 5

As far as 2GA vs 1/0 GA

1980 Buick Century V8 4.9L 12si High Output Alternator JS Alternators 2GA or 4GAFitment: This is a direct fit high output alternator for the 1980 Buick Century 4. 9L. 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 of