This Sierra 18-5713 Voltage Regulator is a top-quality replacement part for OMC 384538. It is manufactured in the United States and is designed to ensure the optimal functioning of your electrical system. With its reliable performance and durable construction, this voltage regulator is an excellent choice for anyone looking to replace their old or faulty one. It is compatible with a wide range of boats and is easy to install, making it a perfect addition to your boat parts collection.