One New Aftermarket Replacement Output Shaft Oil Seal that Fits Case IH Tractor Models 100 Hydro (W/ DUAL SPEED PTO), 186 Hydro (W/ DUAL SPEED PTO), 70 Hydro (W/ SINGLE SPEED INDEPENDENT PTO), 86 Hydro (W/ SINGLE SPEED INDEPENDENT PTO), 1026 (W/ SINGLE SPEED INDEPENDENT PTO), 1066 (W/ DUAL SPEED PTO), (1206, 1256, 1456, 1466, 1468, 1486, 1566, 1568, 1586 (W/ SINGLE SPEED INDEPENDENT PTO)), (3088, 3288, 3388, 3488 (W/ DUAL SPEED PTO)), 3588 (W/ SINGLE SPEED INDEPENDENT OR DUAL SPEED PTO), 3688 (W/ DUAL SPEED PTO), (3788, 4100, 4156, 4166, 4186, 5088, 5288, 544, 5488 (W/ SINGLE SPEED INDEPENDENT OR DUAL SPEED PTO)), 6388 (W/ DUAL SPEED PTO), (656, 6588, 664, 666, 6788, 686 (W/ SINGLE SPEED INDEPENDENT PTO)), 706 (W/ DUAL SPEED PTO), 756 (W/ SINGLE SPEED INDEPENDENT OR DUAL SPEED PTO), 766 (W/ DUAL SPEED PTO), 786 (W/ DUAL SPEED PTO), 826 (W/ SINGLE SPEED INDEPENDENT PTO), 856 (W/ SINGLE SPEED INDEPENDENT OR DUAL SPEED PTO), (886, 966, 986 (W/ DUAL SPEED PTO)).