| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 6215-11-5521 | MUFFLER,FRONT | 11640-@ | |
| 2 | 6212-11-5611 | MUFFLER,REAR | 11640-@ | |
| 3 | 6211-11-5890 | GASKET (K1) | 11640-@ | |
| 4 | 01010-E1055 | BOLT | 11640-@ | |
| 5 | 01580-11008 | NUT | 11640-@ | |
| 6 | 6631-11-5630 | SPACER | 11640-@ | |
| 7 | 6215-11-5750 | BAND | 11640-@ | |
| 8 | 6215-11-5740 | NUT | 11640-@ | |
| 9 | 6215-11-5831 | BRACKET | 11640-@ | |
| 10 | 01010-81045 | BOLT | 11640-@ | |
| 11 | 6631-11-5630 | SPACER | 11640-@ | |
| 12 | 6215-11-5662 | TUBE,DRAIN | 11640-@ | |
| 13 | 6215-11-5671 | TUBE,DRAIN | 11640-@ | |
| 14 | 6215-11-5682 | TUBE,DRAIN | 11640-@ | |
| 15 | 6215-11-5690 | TUBE,DRAIN | 11640-11806 | |
| 16 | 175-79-83760 | SPACER | 11640-@ | |
| 17 | 01010-81045 | BOLT | 11640-@ | |
| 18 | 01580-01008 | NUT | 11640-@ | |
| 19 | 01642-01016 | WASHER | 11640-@ | |
| 20 | 6150-65-7440 | STAY | 11640-@ | |
| 21 | 01010-81020 | BOLT | 11640-11806 | |
| 22 | 01643-31032 | WASHER | 11640-@ | |
| 6128-11-5304 | CHECK VALVE ASS'Y | 11640-@ | ||
| 23 | \6\ | BODY | 11640-@ | |
| 24 | \6\ | VALVE | 11640-@ | |
| 25 | 6128-11-5321 | COVER | 11640-@ | |
| 26 | 6128-11-5611 | GASKET (K1) | 11640-@ | |
| 27 | 01010-81030 | BOLT | 11640-@ | |
| 28 | 01010-81035 | BOLT | 11640-@ | |
| 29 | 01580-01008 | NUT | 11640-@ | |
| 30 | 6215-11-5790 | CLAMP | 11640-@ | |
| 31 | 01010-81065 | BOLT | 11640-@ | |
| 32 | 01640-01016 | WASHER | 11640-@ | |
| 33 | 6215-11-5361 | TUBE,MUFFLER¤ FRONT | 11640-@ | |
| 34 | 6215-11-5370 | TUBE,MUFFLER¤ REAR | 11640-@ | |
| 35 | 01580-01008 | NUT | 11640-@ | |
| 36 | 6128-11-5872 | CLAMP | 11640-@ | |
| 37 | 6215-11-6350 | PLATE | 11640-@ | |
| 38 | 01010-81030 | BOLT | 11640-@ | |
| 39 | 01642-01016 | WASHER | 11640-@ | |
| 40 | 01580-01008 | NUT | 11640-@ |