This clean looking 170 amp racing alternator is a great option for customers doing 2010 and newer 5.0L Ford Mustang Coyote engine swaps. It features an improved solid copper rectifier assembly, with massive press fit diodes for improved durability. This alternator bolts into the factory 2010-2017 Ford Mustang 5.0L alternator bracket (as well as some other Ford brackets). A single wire on the provided pigtail gets connected to any ignition switched 12V+ source to turn the alternator on and off with the ignition switch. Simply run a properly sized positive and ground cable from the alternator to the terminals of the battery and the alternator will work perfectly, regardless of what kind of wiring harness you have. NOTE- this 170 amp version WILL NOT have any engraving on the front pulley, but WILL feature a seamless aluminum rear cover rather than the black plastic cover that is shown in the photo.