R3682 - Tractor Starter Switch Push Button for Ford, IH/Farmall, Massey Harris and Oliver Tractors Fits Ford 9N (to Serial #12499) Replaces 9N11450A Fits IH Farmall H HV I4 I6 ID6 M MD MDV MV O4 O6 ODS6 OS4 OS6 W4 W6 WD6 Replaces 356913R91, 649314 Fits Massey Harris 101Jr 101Sr 102Jr 102Sr 20 22 30 33 44 55 81 82 Colt Mustang Replaces R01327 Fits Oliver 60 66 70 77 80 88 99 Super 44 Super 55 Super 66 Super 77 Super 88 Base mount for 7/8" hole 1 3/4" c-c mounting holes. Works on 6 and 12 volt tractors