The Valeo Alternator 439778 is a reliable, high-performance alternator that will provide your vehicle with the power it needs. This alternator is designed to be easy to install and comes with all the necessary hardware. It features a high-efficiency design that reduces drag on the engine and increases fuel efficiency. It also has a built-in voltage regulator to ensure a consistent output. The Valeo Alternator 439778 is an ideal choice for those looking for a reliable and efficient alternator.