The JMP Marine JOH09-1028B Impeller Kit is a high-quality aftermarket replacement designed for various Volvo Penta marine engines. This kit serves as a reliable alternative to the genuine Volvo Penta part number 3841697. Engineered for efficient water circulation in engine cooling systems, this durable rubber impeller features a 65mm diameter, 50mm width, and a 16mm shaft, ensuring optimal performance and longevity. With 12 robust blades, it provides effective cooling for specific Volvo Penta D1, D2, and MD2000 series engines, making it an excellent choice for maintenance and repairs.