This aftermarket straight blade, part number 451632, is designed as a 2-in-1 replacement for various John Deere lawn tractors. Measuring approximately 520.7 mm (20.5 inches) in length, 63.5 mm (2.5 inches) in width, and 3.81 mm (0.15 inches) in thickness, it weighs approximately 1.01 kg (2.22 lbs). It is a direct replacement for John Deere OEM part M149423 and fits models across the 100, D, E, L, LA, S, and X Series, including specific models like 102, 105, 115, 125, 135, 145, 155C, 190C, L100, L105, L107, L108, L110, L111, L118, L120, L130, LA100, LA105, LA110, LA115, LA120, LA125, LA130, LA135, LA140, LA145, LA155, LA165, LA175, D100, D105, D110, D120, D125, D130, D140, D150, D155, D160, D170, E100, E110, E120, E130, E140, E150, E160, E170, E180, S100, S110, S120, S130, S140, S160, S170, S180, S220, S240, X105, X106, X107, X110, X115R, X116R, X120, X125, X126, X127, X130R, X135R, X140, X145, X146R, X147R, X155R, X165, X166R, X167R.