One new replacement output shaft seal to fit Case IH tractor models 100 Hydro (TWO SPEED PTO), 186 Hydro (TWO SPEED PTO), 70 Hydro (SINGLE SPEED PTO), 86 Hydro (SINGLE SPEED PTO), 1026 (SINGLE SPEED PTO), 1066 (TWO SPEED PTO), (1206, 1256, 1456, 1466, 1468, 1486, 1566, 1568, 1586 (SINGLE SPEED PTO)), (3088, 3288, 3388, 3488 (WITH TWO-SPEED PTO)), 3588 (WITH SINGLE-SPEED INDEPENDENT OR TWO-SPEED PTO), 3688 (WITH TWO-SPEED PTO), (3788, 4100, 4156, 4166, 4186, 5088, 5288, 544, 5488 (WITH SINGLE-SPEED INDEPENDENT OR TWO-SPEED PTO)), 6388 (WITH TWO-SPEED PTO), (656, 6588, 664, 666, 6788, 686 (WITH SINGLE-SPEED INDEPENDENT PTO)), 706 (WITH TWO-SPEED PTO), 756 (WITH SINGLE-SPEED INDEPENDENT OR TWO-SPEED PTO), 766 (WITH TWO-SPEED PTO), 786 (WITH TWO-SPEED PTO), 826 (WITH SINGLE-SPEED INDEPENDENT PTO), 856 (WITH SINGLE-SPEED INDEPENDENT OR TWO-SPEED PTO), (886, 966, 986 (WITH TWO-SPEED PTO)).