This USED D-Range Gear, a John Deere component, is identified by part number R127196 and is also compatible with R108450. This 49-tooth gear is designed for John Deere 8200, 8110T, 8400, 8210T, 8100, 8300, 8110, 8210, 8100T, 8310, 8410, 8200T, 8400T, 8300T, 8310T, and 8410T tractor models. Always verify part number and equipment model before ordering to ensure proper fit.