Brand NEW jet pump assembled ready to bolt on! Comes with all necessary gaskets, o-rings, impeller all torqued to spec. Does not come with manifold, barbs, or bolts. Comes with brand new Solas impeller 14/21, If you require a different pitch please contact us. There will be extended wait times if you choose to change impeller. 14/21 is highly recommended for all applications. This is with the KP upgrade which has the racing shaft, and nut, to prevent the pump from damaging the engine in case of failure. Please visit kawiperformance.com for more products and information!