The JCB KTA0867 Idler is a genuine OEM component designed for various JCB JS series excavators. This essential part maintains correct track tension, guiding the track chain and ensuring smooth, reliable operation of the undercarriage system. Manufactured to JCB's high standards, it provides durability and precise fitment for models including JS130, JS140, JS160, JS180, JS190, JS200, JS210, JS220, JS235, JS240, JS260, JS290, JS300, JS330, JS360, JS370, JS460, JS480, and JS500 series machines.