Sunbelt B1JD6017 17-in. XHT Lawn Mower Blade for 48-in. Decks is designed specifically for John Deere mower decks with a 48-inch cutting width, including LA series tractors such as D140, D150, D160, X140, X165, 145, and 155C. This high-quality blade measures 17 inches long by 2-1/2 inches wide and features a 7-lobed center hole pattern for a secure fit. Engineered for mulching, it includes one durable blade made from Sunbelt’s patented Marbain® heat-treated steel, which delivers extreme hardness and toughness. This advanced steel treatment results in a blade that resists bending and impact damage, maintaining a sharper cutting edge longer than standard blades. The XHT blades are approximately 25% to 40% harder than typical lawnmower blades, ing precise tolerances that rival equipment. This blade is an excellent equivalent to John Deere part numbers AM137757, AM137758, AM141035, AM141036, GX21784, GX21785, GX21786, GY20852, M96616, as well as Oregon 92-104, Rotary 11595, and Stens 330-445. Model Number: B1JD6017