This Power Steering Pump is designed for use with Mercruiser, Volvo Penta, and OMC outboards ranging from 4.3 to 5.7 L. It is a high-quality replacement part for your boat's steering system, ensuring optimal performance and reliable operation. The pump is manufactured by A-Premium, a trusted brand in the marine industry, and is equipped with a range of manufacturer part numbers including 3888323, 3863130, 16792A39, 36368, 71317A1, and 90507A. With this pump, you can enjoy precise control over your outboard's direction and speed, ensuring a comfortable and safe boating experience. It is easy to install and maintain, making it a convenient and cost-effective solution for your boat's steering needs. Don't let a faulty power steering pump ruin your day out on the water - upgrade to this reliable and efficient pump today!