| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 6136-11-5511 | MUFFLER | 55458-57709 | |
| 6136-11-5521 | MUFFLER | 55458-57709 | ||
| 2 | 6131-15-5350 | GASKET (K1) | 55458-57709 | |
| 3 | 01010-31025 | BOLT | 55458-57709 | |
| 4 | 01010-31020 | BOLT | 55458-57709 | |
| 5 | 01602-01030 | WASHER,SPRING | 55458-57709 | |
| 6 | 01642-01016 | WASHER | 55458-57709 | |
| 7 | 6136-11-5611 | PIPE,DRAIN | 55458-57709 | |
| 8 | 07260-20971 | HOSE | 55458-57709 | |
| 9 | 6136-11-5680 | CLIP | 55458-57709 | |
| 10 | 6130-21-5260 | CLIP | 55458-57709 | |
| 11 | 6136-11-5760 | PIPE,EXHAUST | 55458-57709 | |
| 6136-11-5890 | SPARK ARRESTER | 55458-57709 | ||
| 6136-11-5770 | PIPE,EXHAUST (FOR TRIMMING DOZER) | 55458-57709 | ||
| 6136-11-5790 | PIPE,EXHAUST (WEATHER CAP EXHAUST) | 55458-57709 | ||
| 12 | 6136-11-5730 | CLAMP | 55458-57709 | |
| 13 | 01050-31040 | BOLT | 55458-57709 | |
| 14 | 01640-21016 | WASHER | 55458-57709 | |
| 15 | 01582-01008 | NUT | 55458-57709 |