Part Number 14470880 - A New O-Ring (0.21" Thick x 1.475" ID) For A Case 310G, 350, 450, 650, 650G, 850B, 850C, 850D, 850E, 850G, 855C, 855D, 855E, 1150, 1150B, 1150C, 1150D, 1150E, 1150G, 1155D, 1155E, 1450, 1450B, 1455B, 1550 Crawler, IH 55 Chisel Plow, David Brown 885, 885N, 1210, 1212 Tractors, CaseIH 8710, 8725 Forage Harvester, Case 880, 1085B, 1085C, 1086B Crawler Excavator, Case W7, W7E, W11, W11B, W36, 621 Wheel Loaders, Case 680CK, 680CK Series-B, 680CK Series-C, 680L, 780, 780D Backhoe, Case WWC37-Series Chisel Plow, Case 660, 960, 1060, 1660 Combines, Case 730, 770, 830, 870, 930, 970, 1030, 1070, 1090, 1170, 1200, 1470 Tractors, Case D100, D100XR, D130 Backhoe, Case 360 Trencher.  Old Part Numbers Are A18687, A30916, D71437, D35644, A41350, D39296, K24744, H120196, H120311, H120378, H586263, L530436, N60078, K728414, 151201143, 151216174, 153214385, 22288R1, 238-5325, 700735407, 70923650, 735407, 8211210, 920097709, S118012, S118015, S233349, S5918, S6165, S89898, S91823, T31056, T34996.