This Volvo Penta Raw Water Sea Impeller Pump is designed for use with 4.3L, 5.0L, and 5.7L engines, and has a manufacturer part number of 21212799 3812519. The pump is made in China and has a SKU of STGU-A27. It is not a modified item and does not come with any custom bundle. The pump is suitable for use with sterndrive motors and components, and is a part that is compatible with a variety of Volvo Penta models. It is a high-quality replacement part that is designed to ensure optimal performance and reliability. Whether you're a professional or a recreational boater, this pump is an essential component for your boat's cooling system.