Piston Ring Set RE524453 Fits John Deere 624K 644K 624K-II 644G 524K-IINew Aftermarket Replacement Piston Rings Fits John Deere Models: Wheel Loader: 524K II, 544K II, 624J, 624K, 624K II, 624KR, 644G, 644J, 644K Excavator: E210, E210LC, E230, E240, E240LC, E260, E300II, E300LC, 210G, 250G, 2144G, 2154G, 2454D, 2654G, 2954D Dozer: 850J, 850J II Grader: 620G, 622G Grader: 670C II, 670CH II, 670D, 670G, 672CH II, 672D, 672G Wheeled Feller Buncher: 643J, 643K, 643L, 643L II, 843J, 843K Tech Info: Dim A (1) Top Ring Width: .