This alternator is a perfect fit for John Deere lawn utility tractors including models 670, 770, 870, 970, 1070, X485, X495, X585, and X720. It is manufactured by Stevens Lake Parts and compatible with reference numbers MIA10338-A and SE501822-A. With this electrical part, your tractor will be up and running smoothly in no time. It is ideal for those who are looking for a reliable and high-quality replacement for their current alternator. This listing is for one alternator.