✓[Replacement Part Number] The lawn mower blade is a direct replacement for GX21784, AM137757, GX21786, AM141035, AM141036, GX21785, AM137758
✓[Compatibility] The mower blade is compatible with John Dee re mowers with 48-inch decks, including 145, 155C, D150, D160, D140, D155, LA130, LA140, LA145, LA155, LA165, E140, E150, E160, E170, X140, X165, X166, X167, S140, S160, S170, EZ trak mowers Z355E, Z245, and Z255
✓[Accurate Dimension] The GX21784 mower blade is designed for use with 48-inch mower decks. The precisely sized blade maintains balance at high speeds, minimizing wear and tear on spindles, gears, and other components
✓[Effortless Installation] This AM137757 blade is widely utilized for optimal performance in mowing and thinning tasks. Ideal for precision lawn trimming, neatening around trees, navigating between shrubs, and tidying up along edges, walls, and fences, the lawn mower blade will give your landscape a professionally manicured look
✓[Product Dimension] This package includes three GX21784 mower blades. Length: 17", Width: 2-3/4", Thickness: 5/32", Center Hole: 7-Point Star. Please verify the dimensions to ensure you select the optimal lawn mower blade