Parts list: № Number Qty Name Options 1 4392416 2 Roller 2 19M8485 2 Cap Screw M16 X 90, Upper Roller to Frame, SUB FOR J901690 3 14M7276 2 Nut M16, Upper Roller to Frame, SUB FOR J950016 4 12H294 2 Lock Washer 5/8", Upper Roller to Frame, SUB FOR A590916 Next page: ST55194 Front Idler ST875337 Steel Adjuster (281212 - ) ST875338 Rubber Adjuster (281212 - ) ST55193 Track Adjuster ( - 281211) ST55192 Rubber Tracks