1973-1985 Buick LeSabre V8 5.7L 12si High Output Alternator Pulley:V-Belt Pulley then you'd want 1/0 GA

then you'd want 1/0 GA

This is a direct fit high-output alternator for the 2007 GMC Sierra 1500 Classic 4

This is a direct fit high-output alternator for the 1969-1986 GMC K2500 Suburban 5

This is a direct fit high-output alternator for the 1987 GMC V2500 5

1973-1985 Buick LeSabre V8 5.7L 12si High Output Alternator Pulley:V-Belt Pulley then you'd want 1/0 GAFitment: This is a direct fit high output alternator for the 1973 1985 Buick LeSabre 5. 7L. 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