1989-1991 GMC R2500 Suburban V8 5.7L High Output Alternator Pulley:6-Rib Serpentine Pulley 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 1978-1987 Chevrolet Monte Carlo 3

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

This is a direct fit high-output alternator for the 1973-1974 Chevrolet C20 Pickup 7

You will just need to align the belt as needed

1989-1991 GMC R2500 Suburban V8 5.7L High Output Alternator Pulley:6-Rib Serpentine Pulley Hairpin Units are a moreFitment: 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