1977-1986 Chevrolet C10 V8 5.0L 12si High Output Alternator Pulley:Double V-Belt Pulley This means it is internally

This means it is internally regulated and will excite itself with no plug use

This is a direct fit high-output alternator for the 2001-2002 Chevrolet C3500HD 8

This is a direct fit high-output alternator for the 2009-2010 Volkswagen Jetta 1

This is a direct fit high-output alternator for the 1971-1972 Chevrolet G20 Van 4

This is a direct fit high-output alternator for the 1982-1990 GMC Jimmy 6

1977-1986 Chevrolet C10 V8 5.0L 12si High Output Alternator Pulley:Double V-Belt Pulley This means it is internallyFitment: This is a direct fit high output alternator for the 1977 1986 Chevrolet C10 5. 0L. 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