Product Details: The Delco Remy 24SI™ 12V 160A Brush Alternator ensures you are Ready for the Road Ahead™, with a compact design that is easy to install. This heavy duty alternator has a dual internal fan that boasts maximum cooling technology for today’s higher under-hood temperatures of your truck. This heavy duty alternator’s dual fans help circulate air while improving the durability and efficiency of the unit. Its heavy duty design is lightweight while providing your engine battery with the voltage power you need to stay on the road longer. FleetPride is your First Click in Heavy Duty®.