Tisco 8N3679C Key Switch Replaces Old Part Numbers: 11000959 ,287424 ,8N3679 ,9840259 ,1100-0959 ,A8N3679C ,A-8N3679C Assembly Includes 2 Keys Fits FORD Tractor Models: 1811, 1821, 1841, 1871, 1881, 2000, 2030, 2031, 2110, 2111, 2120, 2130, 2131, 2N, 4000, 4000SU, 4030, 4031, 4040, 4110, 4120, 4121, 4130, 4131, 501, 600, 601, 700, 701, 800, 801, 8N, 900, 901, 9N, NAA/Jubilee, NAB, 1081