Sany Excavator Speaker Replacement Amazon link to the speakers I used that are direct fit. https://amzn.to/3IGSmal

Broke the mini-excavator. Track idler completely failed! 00:00 The wore out Idler 00:30 Grease Tensioner 01:00 Track not moving backward 02:28 Idler Removed 03:10 New Idler vs Old 03:34 New Idler installed 03:54 Track Install 04:30 Track on Mower On