The Valeo Alternator 439657 is a high-performance alternator that is designed to provide reliable, efficient power to your vehicle's electrical system. It features a durable construction and a high-efficiency design that ensures it can withstand the toughest conditions. The Valeo Alternator 439657 is perfect for cars, trucks, and SUVs, and is designed to provide up to 140 amps of charging power. It also features a built-in voltage regulator for optimal performance and a low-noise operation. Plus, it comes with a one-year warranty for added peace of mind. Get the reliable power you need with the Valeo Alternator 439657.