This is a brand aftermarket starter for tractors. This is used on models 1835B, 1845, 1845B, 1845S, 350B, 450B, 455B, 480D, 480LL, 580C, 580D, 584D, 585D, and 586D . This is rated for 12 volts, and has 13 teeth. Replaces IH part number 104451a2r. Be sure to add me to your ! ONE YEAR WARRANTY Griggs Lawn Tractor warranties electrical items to be free from defects in material and workmanship for a period of one year from date of purchase. The manufacture reserves the right to inspect any item prior to granting warranty. We pledge our support in obtaining settlement of reasonable and justifiable claims. Griggs Lawn Tractor will not assume any responsibility for loss of time, labor, or crop for any warranted parts. After 30 days of the initial purchase, warranty does not cover shipping charges to and from. *Copy of receipt is required for warranty to be valid and it is the customers responsibility to keep this for a period of one year.* Thanks For Your Business!! 1700-0101