John Deere Original Equipment 2 Blades #M82408 OEM Part Numbers: M82408 / AM100946 / AM137324 / M84472 / M74449 Replaces OEM Part Number(s): M84472 Fits 38" Mower Decks For LX172 LX173 LX176 LX178 LX186 LX188 LX200 STX38 STX46 LT133 LT150 LT155 LT160 LT166 LT170 LT180 Lawn Tractors, F510 F525 Front Mowers, SX95 SRX95 S92 Riding Mowers John Deere lawn mower blades are manufactured with a combination of carbon and boron to provide hardness for a long life and sharp edge without breakage. Low Lift Style Mower Blade