The John Deere W39209 is a genuine OEM mower blade engineered for optimal cutting performance on a wide range of John Deere lawn tractors and zero-turn mowers. This durable blade measures approximately 431.8 mm (17 inches) in length and 57.15 mm (2.25 inches) in width, with a thickness of 3.99 mm (0.157 inches). It features a 7-point star center hole for precise fitment and weighs approximately 1.13 kg (2.5 lbs). The blade is a direct replacement for several superseded John Deere part numbers, ensuring compatibility and reliable operation for models including the 100, D, E, L, LA, S, X, and Z series.