The John Deere M811947 is an authentic OEM flat idler pulley designed for various John Deere lawn and garden equipment, including D Series, E Series, L Series, LA Series, S240, X Series, and Z Series models. This crucial component ensures proper tension and smooth operation of the drive belts, contributing to the longevity and performance of your machinery. With an outer diameter of 101.6 mm, a bore diameter of 17.0 mm, and a width of 25.4 mm, it is engineered to exact John Deere specifications.