Need an exact replacement pulley for your John Deere lawn tractor? This is the genuine OEM part (#M127358), made to the same specs as the original. It fits a bunch of models including the LT155 and LT166 Lawn Tractors, plus various Sabre tractors like the 1338G, 1438GS, 1542HS, 1646H, and many others listed in the description. Important note: this pulley is only for hydrostatic transmission models – it will NOT work on gear-shift tractors, so double-check your machine before ordering. If your old pulley is worn, damaged, or making noise, swapping in this OEM part will get your mower running smoothly again. Installation is straightforward if you’re comfortable with basic mechanical work. Keep your Deere in top shape with the right factory part.