This Water Pump Impeller Kit is a genuine product that is designed to provide top-notch performance. It is compatible with the JH series and comes with manufacturer part numbers 129670-42531 and 129670-42530. The kit includes one unit of water pump impeller, making it a perfect fit for all your plumbing needs. The kit is manufactured in Sweden and is ideal for boats, providing reliable and efficient operation. The unit quantity is one and it is suitable for various boat models. Trust Yanmar to deliver quality and durability in this Water Pump Impeller Kit.