The JCB KSB0692 is a genuine 4.5mm thick shim plate, essential for maintaining precise clearances and correct alignment within various JCB JS series excavators including JS130, JS145, JS160, JS180, JS200, and JS220. With an outer diameter of 70mm and a weight of 0.05 kg, this OEM-specified shim ensures optimal performance and longevity of critical components by reducing friction and wear in transmission, axle, or gearbox assemblies.