https://www.summitrubbertracks.com/Undercarriage/Idlers/makemodel/TRACKS__UNDERCARRIAGE_CASE_TR310B_13_IN_WIDTH_ID611
makemodel: TRACKS__UNDERCARRIAGE_CASE_TR310B_13_IN_WIDTH_ID611
Summit Supply stocks front idlers and rear idlers for most rubber tracked skidsteers and mini-excavators that are guaranteed to fit and made with hardened steel
makemodeltracksundercarriagecasewidth