New aftermarket steering wheel for John Deere model 40, L, LA, M, MT when replacing John Deere part number AL2180T. Also fits Allis Chalmers AC, B, C and CA when replacing Allis Chalmers part number 70225330 or 70207300. Also fits Massey Ferguson Pony tractor when replacing Massey Ferguson part number 850071M1. This steering wheel has a 15" diameter and an 11/16 center hole.