The John Deere AHC17781 is a genuine OEM hydraulic cylinder seal kit designed to restore optimal performance and prevent leaks in a wide range of John Deere agricultural and construction machinery. This essential repair kit ensures the integrity of hydraulic systems in models including 6100D, 6110D, 6115D, 6120D, 6125D, 6130D, 6140D tractors, 640R, 660R loaders, 310L, 310SL, 310SL HL, 315SL, 410L, 710L backhoe loaders, 160G LC, 180G LC, 210G LC, 250G LC, 290G LC excavators, 444K, 524K, 544K, 624K wheel loaders, 640L, 648L, 740L, 748L, 848L skidders, 643L, 843L feller bunchers, 700K, 750K, 850K dozers, and 670G, 672G motor graders. Weighing 0.12 kg and measuring 95 mm in length, 95 mm in width, and 51 mm in height, this kit provides precise fitment for reliable hydraulic repairs.