The JCB 20951592 is a genuine OEM sun gear designed for the planetary reduction system in various JCB JS series excavators. This critical component ensures efficient power transfer within the track drive, contributing to reliable machine operation and longevity. Weighing approximately 10 kg, this high-quality sun gear is engineered to meet JCB's rigorous standards for durability and performance in demanding construction environments. It is a direct replacement part for models including JS130, JS145, JS160, JS180, JS200, JS220, JS240, JS260, JS290, JS330, and JS360.