1987-1988 GMC P3500 V8 7.4L CS144 High Output Alternator Amperage:370 amp alternator Hairpin Units are a more

Hairpin Units are a more reliable alternator to withstand high heat

This is a direct fit high-output alternator for the 1968-1972 Cadillac Calais 7

This is a direct fit high-output alternator for the 1964-1966 Pontiac GTO 6

This is a direct fit high-output alternator for the 1970-1971 Chevrolet C20 Suburban 6

1987-1988 GMC P3500 V8 7.4L CS144 High Output Alternator Amperage:370 amp alternator Hairpin Units are a moreFitment: This is a direct fit high output alternator for the 1987 1988 GMC P3500 7. 4L. 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