ONE Replacement Blades EXMARK 103-8251 Hardened Made in USA - B1EM1871 Knives and Guards 644A Fits the following Harvester

644A Fits the following Harvester Models: 3510 (070301-070460)

John Deere Original Equipment Seal - AR90860

2027R(PC11963)

Fits the following Lawn and Garden Tractor Models: X300 (040001-)

AV Conversion Cable (A)

ONE Replacement Blades EXMARK 103-8251 Hardened Made in USA - B1EM1871 Knives and Guards 644A Fits the following HarvesterONE Replacement Blades EXMARK 103 8251 Hardened Made in USA B1EM1871. 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 46" cut. Fits Triton decks. Center Hole 15 16"