REPLACEMENT PREDATOR MULCHING BLADES MADE IN THE USA!! Not cheap imports!!! Predator blades provide the flat blade design preferred by most commercial mowers with an extended cutting length for increased cutting efficiency with more resistance to bending. Tighter tolerances in the aftermarket vs. OEM. By the way they are made in the USA! Hands down the ABSOLUTE best aftermarket replacement blade on the market!****This sale is for 3 replacement Predator mulching blades blades. Replaces the following OEM part numbers: JOHN DEERE GY20852 GX21784 GX21786 AM141035 These blades are made by Fisher Barton who happens to make ALL of John Deere's OEM blades! 3 BLADES FOR 48" CUT Center Hole: 7 LOBE Width: 2-1/2" Length: 17" Thickness: .197" Â· Disclaimer: We list model numbers and part numbers for references only. At times the same model may take different parts based on serial number breaks or manufacturers specifications. We list all the specifications on the part (size, width, length, thickness, etc.) and YOU must know what is needed on YOUR application. We canÂt possibly make it more known as to what you are receiving when you purchase.