| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A40034-A40042- | |||
| 1 | YM977770-01212 | GASKET, LIQUID | A40034-A40042- | |
| YM723900-92630 | GASKET SET | A40034-A40042- | ||
| 2 | YM123900-01340 | GASKET | A40034-A40042- | |
| 3 | YM243110-00320 | O-RING | A40034-A40042- | |
| 4 | YM243210-00850 | O-RING | A40034-A40042- | |
| 5 | YM121850-11150 | SEAL | A40034-A40042- | |
| 6 | YM119625-11870 | PROTECTOR | A40034-A40042- | |
| 7 | YM119625-11880 | SEAT, NOZZLE | A40034-A40042- | |
| 8 | YM123900-03210 | GASKET | A40034-A40042- | |
| 9 | YM123900-11310 | GASKET | A40034-A40042- | |
| 10 | YM123900-12110 | PACKING | A40034-A40042- | |
| 11 | YM123900-77020 | GASKET | A40034-A40042- | |
| 12 | YM123900-77030 | GASKET | A40034-A40042- | |
| 13 | YM123900-13150 | GASKET | A40034-A40042- | |
| 14 | YM129400-13201 | GASKET | A40034-A40042- | |
| 15 | YM123901-18080 | GASKET | A40034-A40042- | |
| 16 | YM123901-18090 | GASKET | A40034-A40042- | |
| 17 | YM123900-33060 | GASKET | A40034-A40042- | |
| 18 | YM123900-42050 | GASKET | A40034-A40042- | |
| 19 | YM124610-49290 | GASKET | A40034-A40042- | |
| 20 | YM123500-49550 | GASKET | A40034-A40042- | |
| 21 | YM221900-80002 | SEAL | A40034-A40042- | |
| 22 | YM221901-20002 | SEAL | A40034-A40042- | |
| 23 | YM221901-40002 | SEAL | A40034-A40042- | |
| 24 | YM234140-80000 | GASKET | A40034-A40042- | |
| 25 | YM234141-00000 | GASKET | A40034-A40042- | |
| 26 | YM124465-44950 | GASKET | A40034-A40042- | |
| 27 | YM129900-32030 | O-RING | A40034-A40042- | |
| 28 | YM129900-32040 | O-RING | A40034-A40042- | |
| 29 | YM243112-40100 | O-RING | A40034-A40042- | |
| 30 | YM243110-00120 | O-RING | A40034-A40042- | |
| 31 | YM243140-00180 | O-RING | A40034-A40042- | |
| 32 | YM243410-00240 | O-RING | A40034-A40042- | |
| 33 | YM243110-00110 | O-RING | A40034-A40042- | |
| 34 | YM123900-49820 | GASKET | A40034-A40042- | |
| 35 | YM129400-92420 | HONE | A40034-A40042- | |