1985-1987 Chevrolet G30 V6 4.3L 12si High Output Alternator Amperage:250 amp alternator Every 250amp alternator will automatically

Every 250amp alternator will automatically come with the OEM size pulley unless specified in your order notes

it's really going to depend on what mods you're going to do to

This is a direct fit high-output alternator for the 1968-1969 GMC K3500 6

This is a direct fit high-output alternator for the 1975-1986 Chevrolet C30 5

This is a direct fit high-output alternator for the 2012-2013 Audi TT RS Quattro 2

1985-1987 Chevrolet G30 V6 4.3L 12si High Output Alternator Amperage:250 amp alternator Every 250amp alternator will automaticallyFitment: This is a direct fit high output alternator for the 1985 1987 Chevrolet G30 4. 3L. 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