691631C91 New Rear Crankshaft Seal Fits Case-IH Tractor Models 1206 1026One New Aftermarket Replacement Rear Crankshaft Seal that Fits Case Ih Industrial Construction Models: 21206, 21256, 21456, E200, H56C, 2806, 2856 (D407) Also Fits: Fits Case IH Tractor Models: 1206, 1026, 1256, 1456, 1066, 1086, 1460, 1480, 1466, 1486, 1566, 1586, 3388, 4166, 4186, 5088, 6388, 4366, 4386 (ENG SN <74999), 1470, 3588, 3788, 5288, 5488, 6588, 6788, 766, 886, 856, 966 Fits Case IH Combine Models: 915, 1460, 1640 (w D466 Engine), 1480,