| Item | Part No. | Part Name | Qty | Serial No. |
| YM729350-01560 | CYLINDER BLOCK A. | 18873- | ||
| 1 | \6\ | BLOCK,CYLINDER | 18873- | |
| 2 | YM22312-080160 | PIN,DOWEL | 18873- | |
| 3 | YM124085-01900 | GUIDE | 18873- | |
| 4 | YM24311-000100 | O-RING | 18873- | |
| STANDARD | ||||
| 5 | YM129350-02100 | METAL,MAIN FRONT | 18873- | |
| UNDERSIZE 0.25MM | ||||
| 5 | YM129350-02310 | METAL,MAIN FRONT | 18873- | |
| 6 | YM27241-300000 | PLUG | 18873- | |
| 7 | YM171051-01921 | PLUG | 18873- | |
| 8 | YM124060-01050 | PLUG | 18873- | |
| 9 | YM23881-120002 | PLUG | 18873- | |
| 10 | YM23414-120016 | GASKET | 18873- | |
| 11 | YM22312-080160 | PIN,DOWEL | 18873- | |
| 12 | YM121450-01990 | PLUG | 18873- | |
| 13 | YM124950-01210 | STUD | 18873- | |
| 14 | YM121450-01220 | NUT | 18873- | |
| 15 | YM22351-060012 | PIN,SPRING | 18873- | |
| 16 | YM129350-01100 | LINER,CYLINDER | 18873- | |
| 17 | YM24101-062054 | BEARING,BALL | 18873- | |
| 18 | YM26587-080112 | SCREW | 22808- | |
| YM26587-080102 | SCREW | 18873-22807 | ||
| 19 | YM171056-49120 | PLUG | 18873- | |
| 20 | YM124976-34850 | PLUG | 18873- | |
| 21 | YM121520-01860 | COVER | 18873- | |
| 22 | YM121520-01850 | PACKING (KIT) | 18873- | |
| 23 | YM26106-060142 | BOLT | 18873- | |
| 24 | YM124240-01871 | COVER | 18873- | |
| 25 | YM124240-01882 | GASKET (KIT) | 18873- | |
| 26 | YM129335-55620 | BRACKET | 18873- | |
| 27 | YM26216-080222 | STUD | 18873- | |
| 28 | YM194990-22050 | NUT | 18873- |