| Item | Part No. | Part Name | Qty | Serial No. |
| \0 | (21D-01-00020) | ENGINE, ASSY. | ||
| 1 | YM723900-92650 | KIT, GASKET | ||
| 2 | YM123900-01340 | GASKET | ||
| 3 | YM24311-000320 | O-RING | ||
| 4 | YM123900-49820 | GASKET | ||
| 5 | YM121850-11150 | SEAL, VALVE | ||
| 6 | YM119625-11870 | PROTECTION, NOZZLE | ||
| 7 | YM119625-11880 | SEAT, NOZZLE | ||
| 8 | YM123900-03210 | GASKET | ||
| 9 | YM123900-11310 | GASKET | ||
| 10 | YM123900-12110 | GASKET | ||
| 11 | YM123900-77020 | GASKET | ||
| 12 | YM123900-77030 | GASKET | ||
| 13 | YM123900-13110 | GASKET | ||
| 14 | YM129400-13201 | GASKET | ||
| 15 | YM128300-13230 | GASKET | ||
| 16 | YM123900-33060 | GASKET | ||
| 17 | YM123900-42050 | GASKET | ||
| 18 | YM124610-49290 | GASKET | ||
| 19 | YM123500-49550 | GASKET | ||
| 20 | YM22190-080002 | GASKET | ||
| 21 | YM22190-120002 | WASHER | ||
| 22 | YM22190-140002 | SPRING WASHER | ||
| 23 | YM23414-100000 | GASKET | ||
| 24 | YM124465-44950 | GASKET | ||
| 25 | YM24321-000850 | O-RING | ||
| 26 | YM129900-32030 | O-RING | ||
| 27 | YM129900-32040 | O-RING | ||
| 28 | YM24311-000110 | O-RING | ||
| 29 | YM24311-000120 | O-RING | ||
| 30 | YM24314-000180 | O-RING | ||
| 31 | YM24341-000240 | O-RING | ||
| 32 | YM129400-92450 | FLEX HORN | ||
| 33 | YM977770-01212 | GASKET, LIQUID |