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A direct-fit high-output alternator for the 2001-2004 Ford Mustang 3.8L V6. It uses a GM-style internal regulator set at 14.8 volts and ships with a pigtail plug, so it is not plug-and-play: the wiring has to be spliced in. A smaller pulley spins the unit faster to reach peak output, which means a belt 1/2 to 1 inch shorter than stock is required. It suits owners running extra electrical load, such as audio systems or accessories, who can handle wiring and a belt change; stock-replacement alternators drop in with no modification but deliver far less current.
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This is a direct-fit, high-output alternator for the 2001-2004 Ford Mustang with the 3.8L V6 engine. It mounts in the stock alternator location.
It has a 14.8 volt GM-style internal regulator with a pigtail plug. It is not plug-and-play and must be wired with a pigtail plug. Regulators with other voltage setpoints are available separately and must be purchased with the alternator if a specific charging voltage is needed.
The alternator comes with a smaller pulley, which makes it spin faster than a larger pulley and can help it reach its maximum output. A belt that is 1/2" to 1" shorter is required with the smaller pulley. A high-output alternator requires the Big 3 wiring upgrade. 1/0 100% copper wire is recommended for it.
