SUNBELT BLADE-MOWER, 16-1/2", 5/8", HL - B1BU1301 Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the HXT blade are sharper and longer lasting cutting edges. More resistance to bending. Tighter tolerances in the aftermarket vs. OEM. XHT blades also offer greater impact toughness. (3) blades for 48" cut. Gear drive and Hydro drive. Midsize V-deck. Center Hole: 5/8" Length: 16.5" Thickness: .197 Width:2.5" Crossed From: John Deere - AM104489, TCU29299. Fits the following John Deere models: WG32A, WG36A, WG48A, WHP48A, WH36A, WH48A, WH52A. This is an Aftermarket part. Thanks for looking!