Astrak has developed a full range of heavy duty undercarriage idlers. Our Idlers are the ideal choice for all operators looking for quality and value. Cast idler assemblies come complete with heavy duty seal groups, shafts and brackets. All idlers are available from stock to fit all makes and models of excavators, including mini excavators. All parts are manufactured using high quality materials and state of the art equipment ensuring high quality precision manufacturing, for guaranteed fitting and superior wearability.