121629C3 Neutral Start Switch Fits International Tractor Cub 154 185 37.86 Quality Aftermarket: Neutral Start Switch (OEM) Fits: 121629C3 International Tractor Cub SN: 239827 & Up; Hydro 84 SN: 7253 & Up; 140 SN: 45001 & Up; 484 SN: 6501 & Up; 584 SN: 6953 & Up; 684 SN: 7253 & Up; 784 SN: 7167 & Up; 785 SN: 12442 & Up; 884 SN: 6643 & Up; 5088 Through SN: 6243; 5288 Through SN: 4210; 5488 to serial number: 2425; 154, 185, Hydro 100, Hydro 186, Hydro 70, Hydro 86, 21456, 544, (574 Gas and Diesel); (656 International/Farmall; Gas/Diesel, Hydro); 664, 666, 686, 706, 756, 766, 786, 806, 826, 856, 886, 966, 986, 1026, 1066, 1086, 1206, 1256, 1456,1466, 1468, 1486, 1566, 1568, 1586, 3088, 3288, 3488, 3588, 3688, 3788, 4100, 4156, 4166, 6388, 6588, 6788 for use as neutral emergency switch Specifications Thread 5/8″ – 32 2 blades Overall length 2.575″ Can also be used as a neutral safety switch on commercial walk behind mowers: 38″, 48″ and 54″. Replacement Part Numbers 121629C1, 121629C2, 121629C3, 22-228, 22-642, 382728R91, 53682R1, 83954C91