1971-1979 Pontiac Bonneville V8 6.6L 12si High Output Alternator JS Alternators This is a direct fit

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it is required to upgrade your wiring with the Big 3 Wiring Upgrade Kit

This is a direct fit high-output alternator for the 2003-2004 GMC Sierra 1500 6

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1971-1979 Pontiac Bonneville V8 6.6L 12si High Output Alternator JS Alternators This is a direct fitFitment: This is a direct fit high output alternator for the 1971 1979 Pontiac Bonneville 6. 6L. Being a direct fit, this alternator fits directly into your stock alternator location. Plug: This high output alternator comes with a separate adaptor plug. One side will plug directly into the aftermarket high output alternator, and the other side will plug into the factory plug. NOTE: If you require charging at a certain voltage setpoint, we offer a