1989-1991 GMC R2500 Suburban V8 5.7L High Output Alternator Pulley:6-Rib Serpentine Pulley This is pigtail harness will

This is pigtail harness will need to be wired into your factory wiring

This is a direct fit high-output alternator for the 1965-1969 Oldsmobile 442 6

This is a direct fit high-output alternator for the 1996-1998 Chevrolet C2500 5

Hairpin Units are a more reliable alternator to withstand high heat

This is a direct fit high-output alternator for the 1963-1967 Chevrolet P30 Series 4

1989-1991 GMC R2500 Suburban V8 5.7L High Output Alternator Pulley:6-Rib Serpentine Pulley This is pigtail harness willFitment: This is a direct fit high output alternator for the 1989 1991 GMC R2500 Suburban 5. 7L. 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