Product Details: The Delco Remy 36SI™ 12V 170A Pad Mount Brushless Alternator ensures you are Ready for the Road Ahead™, with its design to address vehicle applications that require high electrical output, while maintaining lower weight. This means not only enhancing temperature capability, but also the fuel savings of your truck. This brushless heavy duty alternator raises the bar with high amp output. You don't have to worry about having problems of a bad battery that won't turn or start. Equipped with Remote Sense technology, this heavy duty brushless alternator uses a second wire that interprets actual voltage from the battery and increases voltage output to ensure a constant 14 volts at the battery. This means using half the time to bring your battery to a fully charged state for a stable start you know you can trust. FleetPride is your First Click in Heavy Duty®.