1986 Mercury Grand Marquis V8 5.0L High Output Alternator Pulley:V-Belt Pulley This is a direct fit

This is a direct fit high-output alternator for the 1975-1980 Chevrolet P10 4

This is a direct fit high-output alternator for the 1999-2004 Ford F-450 Super Duty 6

This is a direct fit high-output alternator for the 2003 Ford E-250 4

This is a direct fit high-output alternator for the 1991-1992 Ford E-150 Econoline 5

This is a direct fit high-output alternator for the 2000-2002 Ford E-450 Econoline Super Duty 7

1986 Mercury Grand Marquis V8 5.0L High Output Alternator Pulley:V-Belt Pulley This is a direct fitFitment: This is a direct fit high output alternator for the 1986 Mercury Grand Marquis 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