The John Deere GX22151NO is a genuine OEM mower blade designed for optimal cutting performance on various John Deere lawn tractors and zero-turn mowers. This high-quality blade is specifically engineered for models equipped with 42-inch and 48-inch mower decks. It measures approximately 543.052mm (21.38 inches) in length, 63.5mm (2.5 inches) in width, and features a 20.32mm (0.8 inch) center hole. The blade's robust construction ensures durability and a clean, efficient cut, contributing to a well-maintained lawn. It replaces part numbers GY20850, GY20852, and GX22151.