The Kramp 1256015710 is a high-quality flat drive pulley, designed as a direct replacement for various Castelgarden, Stiga, and Mountfield ride-on mowers. This essential component ensures proper tension and smooth operation of the drive belt, contributing to efficient power transmission and optimal performance of your lawn tractor. With an outer diameter of 115 mm, a bore diameter of 17 mm, and a height of 25 mm, this pulley is manufactured for durability and a precise fit, restoring original equipment functionality.