1963-1972 Chevrolet K20 Pickup L6 4.8L 12si High Output Alternator JS Alternators This is a direct fit

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This strong protective coating increases durability and helps to prevent rust and corrosion

1963-1972 Chevrolet K20 Pickup L6 4.8L 12si High Output Alternator JS Alternators This is a direct fitFitment: This is a direct fit high output alternator for the 1963 1972 Chevrolet K20 Pickup 4. 8L. 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