1987-1989 GMC R2500 V8 6.2L 12si High Output Alternator JS Alternators This is a direct fit

This is a direct fit high-output alternator for the 1981-1987 Buick Electra 5

This is a direct fit high-output alternator for the 1979 Subaru FE 1

This is a direct fit high-output alternator for the 2005-2012 Nissan X-Trail 2

These all require more amperage than the stock alternator is capable of providing

This is a direct fit high-output alternator for the 2001-2007 Chevrolet Silverado 3500 6

1987-1989 GMC R2500 V8 6.2L 12si High Output Alternator JS Alternators This is a direct fitFitment: This is a direct fit high output alternator for the 1987 1989 GMC R2500 6. 2L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a 14. 8 Volt GM Style Internal Regulator with one wire connection. This alternator is not plug and play and must be wired with the one wire connection. NOTE: If you require charging at a certain voltage setpoint, we offer a selection