1967-1986 GMC C3500 L6 4.8L 12si High Output Alternator Pulley:6-Rib Serpentine Pulley This is a direct fit

This is a direct fit high-output alternator for the 1975-1989 Chevrolet P20 4

This is a direct fit high-output alternator for the 1987 GMC R1500 5

8 99-04 GMC Full Size Truck / Sierra 5

This is a direct fit high-output alternator for the 1994-1995 Chevrolet C3500HD 7

1967-1986 GMC C3500 L6 4.8L 12si High Output Alternator Pulley:6-Rib Serpentine Pulley This is a direct fitFitment: This is a direct fit high output alternator for the 1967 1986 GMC C3500 4. 8L. 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