1987 Buick Regal V6 3.8L cs144 High Output Alternator

Fitment: This is a direct fit high-output alternator for the 1987 Buick Regal 3.8L. 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 selection of different voltage regulators that you will need to purchase with the alternator for it to be installed. View our Regulator Options Here. Pulley: This alternator also comes with a smaller pulley, which causes it to spin faster than a larger pulley. This can help the alternator produce its maximum output. With a smaller pulley, it is required to install a 1/2" - 1" shorter belt. See this Blog Article for assistance in finding the correct shorter belt. Big 3 Wiring: When Upgrading to a High-Output Alternator, it is required to upgrade your wiring with the Big 3 Wiring Upgrade Kit. It is recommended to use 1/0 100% copper wires for the upgrade. Our Big 3 Wiring Upgrade Kit is 10% off with a purchase of a JS Alternator; use code BIG3DISCOUNT at checkout. Learn Why The Big 3 Wiring Upgrade Kit is Required for All High Output Alternators