| Model S/N | Publication type | Preview | Download |
|---|---|---|---|
| D31EX-21(JPN) S/N 50001-50097 | Operation and Maintenance Manual | 
|
Free download link |
| D31EX-21(JPN) S/N 50001-50500 | Shop Manual | 
|
Free download link |
| D31EX-21(JPN) S/N 50098-50500 | Operation and Maintenance Manual | 
|
Free download link |
| D31EX-21(JPN) S/N 50501-UP | Shop Manual | 
|
Free download link |
| D31EX-21(JPN) S/N 50501-UP | Operation and Maintenance Manual | 
|
Free download link |
Parts catalog Komatsu:
D31EX-21(JPN) S/N 50001-50500
Parts Book
[D31EX-2C]
D31EX-21(JPN) S/N 50501-UP
Parts Book
[D31EX-1C]
See also
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| Construction | Komatsu WA350-1 | WHEEL LOADERS |
| Construction | Komatsu WA450-1 | WHEEL LOADERS |
| Construction | Komatsu WD600-1 | WHEEL DOZERS |
| Construction | Komatsu HM350-1 | ARTICULATED DUMP TRUCKS |
| Construction | Komatsu HM300-1 | ARTICULATED DUMP TRUCKS |
| Utility | Komatsu WA70-1 | WHEEL LOADERS |
| Construction | Komatsu PC200-7 | CRAWLER EXCAVATORS |
| Utility | Komatsu PC03-2 | CRAWLER EXCAVATORS |
| Utility | Komatsu PC58UU-3 | CRAWLER EXCAVATORS |
| Construction | Komatsu D31PX-21 | BULLDOZERS |
| Construction | Komatsu D37PX-21 | BULLDOZERS |
| Construction | Komatsu D37EX-21 | BULLDOZERS |
| Utility | Komatsu PC09-1 | CRAWLER EXCAVATORS |
| Utility | Komatsu PC78US-6 | CRAWLER EXCAVATORS |
| Utility | Komatsu PC15MRX-1 | CRAWLER EXCAVATORS |
| Construction | Komatsu PC158US-2 | CRAWLER EXCAVATORS |
| Construction | Komatsu PC158USLC-2 | CRAWLER EXCAVATORS |
| Construction | Komatsu HD465-7 | RIGID DUMP TRUCKS |
| Construction | Komatsu HD605-7 | RIGID DUMP TRUCKS |
| Utility | Komatsu PC78US-5 | CRAWLER EXCAVATORS |
| Construction | Komatsu PC1250LC-7 | CRAWLER EXCAVATORS |