C7NN7A247B Years:1966&Up Limit Switch. Round Balers: 850. Forage Harvesters: Super 717, 718, 770, 782. Replaces 237296 FORD: Safety Starter Switch 6X & 6Y Series Tractors 6-speed transmission, dual range (10/1966 & Up); 8-Speed Transmission. Fits Ford Tractors:3100,5000,3400,4000,3000,445,535,2100,3550,3500,4500,532,2000,420,545.