Powermaster 200amp Alternator This is a "Powermaster 200 AMP Alternator" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This high output alternator is a direct fit and puts out 200amps. It... MSRP: Was: Now: $369.00 Add to Cart