The John Deere M77098 is a genuine OEM idler wheel designed for a wide range of John Deere lawn and garden tractors, utility tractors, and zero-turn mowers. This essential component ensures proper tension and smooth operation of drive belts, contributing to the longevity and performance of your machinery. Constructed for durability, it features an outer diameter of 123.95 mm, an inner diameter of 17.02 mm, and a width of 28.45 mm, with a weight of approximately 0.18 kg. It is a direct replacement part, ensuring optimal fit and function for compatible models.