25 - EXCAVATOR TRACK SYSTEMS 0130 Parts group TRACK SYSTEMS 0130 TRACK SYSTEMS 0130 . TRACK FRAME AND IDLER [A13] TRACK FRAME AND IDLER (RUBBER) [A15] TRACK ASSEMBLY [A17] ROLLERS AND DRIVE SPROCKET [A19] ROLLERS AND DRIVE SPROCKET (RUBBER TRACK) [A21]