1963-1966 Pontiac Grand Prix V8 6.9L 12si High Output Alternator Shopify Collective This is a direct fit

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JS Alternators hairpin units feature premium bearings to withstand high engine rpm and utilize dual plate rectifier with 12 heavy duty diodes for improved cooling

1963-1966 Pontiac Grand Prix V8 6.9L 12si High Output Alternator Shopify Collective This is a direct fitFitment: This is a direct fit high output alternator for the 1963 1966 Pontiac Grand Prix 6. 9L. 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