I have an 18 year old 2164 cub cadet with a 42 inch mower deck. Runs great. While mowing, a stone or something got under the hood and dropped down into the flywheel. One of the magnets on the wheel broke off. I have looked for the part# BS 807805 and all websites say that it is discontinued. I guess because it is 18 years old. I was hoping someone might know where would be a good place to start looking for this part. I would think there would be a substitute of some sort. Thanks folks