1987-1990 Jeep Wrangler L6 4.2L 12si High Output Alternator Shopify Collective Learn Why The Big 3

Learn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators

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1987-1990 Jeep Wrangler L6 4.2L 12si High Output Alternator Shopify Collective Learn Why The Big 3Fitment: This is a direct fit high output alternator for the 1987 1990 Jeep Wrangler 4. 2L. 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