1985-1987 GMC G2500 V6 4.3L 12si High Output Alternator JS Alternators This is a direct fit

This is a direct fit high-output alternator for the 1969-1978 GMC K35 5

They produce more output at idle and are more efficient than a conventional alternator

This is a direct fit high-output alternator for the 1996-1997 GMC C1500 6

8L 1999 - 2004 GMC Full Size Truck / Sierra 5

This is a direct fit high-output alternator for the 1987-1989 Chevrolet Beretta 2

1985-1987 GMC G2500 V6 4.3L 12si High Output Alternator JS Alternators This is a direct fitFitment: This is a direct fit high output alternator for the 1985 1987 GMC G2500 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 of