✓Replaces OEM Part: John Deere GY20852, GX21785, GX21784, GX21786, AM137757, AM141035
✓GY20852 Dimensions: Length 17", Width 2-3/4", Center Hole 7 point star, Air Lift 1-3/16", Cutting Edge Length 5-1/8", Compatible Deck Size 48". The length of the blade is measured diagonally from one end to the other
✓Replacement Blades: GY20852 John Deere 48 Inch Mower Blades Compatible with D140, D150, D155, D160, E140, E150, E160, E170, LA130, LA140, LA145, LA155, LA165, 145, 155C
✓Replacement Blades: GX21784 John Deere Mower Blades 48 Inch Compatible with S140, S160, S170, X105, X140, X165, X166, X167, Z245, Z255, Z355E
✓Installation: Designed for quick, hassle-free installation - the blades fit directly into place. Just remove the old blade, secure the new one, and your mower is ready for clean, efficient cutting
✓Materials: Made from high-strength steel engineered for durability, stability, and long-lasting cutting performance, ensuring dependable results even under heavy mowing conditions
✓Sharpness: Each new blade is pre-sharpened but covered with safety paint that wears off during initial operation. For continued peak performance, the blade can be safely resharpened whenever the cutting edge becomes dull