This is brand new, older stock. 8984-0215 is the exact same as the 8984-005 impeller, it is just that one was sold individually and one was sold as a kit. I don't really know anything about these parts other than what the guy I got them from said. His father used them on his truck when he went to the farms to get milk and these were new/unused spare parts, for when he would need them. The box on this one says 90076-0015, which is incorrect, the impeller is indeed 8984-0215. The extra parts may or may not be for this one, therefore offering for the same price as ones without, and is just a bonus for me not knowing for sure. I think this kit is complete, but not for sure. Just take a look to see if the needed parts are there. They seem like they are in good shape, however did not look in the o-ring envelope to know for sure. Looks like there may have some water damage, so may or may not effect the part. I take pride in my pictures, and are a valuable extension of my description. Please take time to see the product fully. Buy with confidence! All items are packaged with great care and shipped next day, excluding any weekends and holidays. I will combine shipping whenever possible as long as the products can be safely packed together. Please remember to leave feedback, it helps to keep good sellers . International Buyers: We do not mark merchandise as a gift or below value due to it being against US and International Regulations. All custom fees and duties are the responsibility of the buyer. Seller is not responsible for any package held by Customs. If returns are accepted. Must be returned in the same condition as received and in same or similar packaging.