Sunbelt B1PD5016 21-3/8 in. Predator Mower Blade is designed for mower decks with a 42" cut, including a wide range of John Deere models such as 102, 115, 125, 135, D100, D110, D120, D130, LA100, LA105, LA110, LA115, LA120, LA125, LA135, X110, X120, X125, and X145 tractors featuring a 7-lobe StarLock center hole. This toothed blade measures 21-3/8" long by 2-1/2" wide and .197" thick, with a unique 7-lobed star diameter center hole. Each package includes one blade. The Sunbelt Predator blades extended cutting length for enhanced cutting efficiency and superior mulching capabilities d to traditional mulching blades. Their innovative airflow tooth design not only strengthens the blade but also increases airflow to produce smaller clippings, while the cutting edges remain sharper for longer periods. Crafted from patented and independently tested Marbain® heat-treated steel, these blades provide increased hardness and resistance to bending and impact damage. This results in a cutting edge that stays sharper up to 25% to 40% longer than standard lawnmower blades, delivering the tightest tolerances when d to equipment blades. This blade replaces John Deere GX22151 and GY20850, Oregon 92-615, Rotary 11594, and Stens 330-069. Model Number: B1PD5016