| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A40034-A40042- | |||
| YM123910-49800 | THERMOSTAT HOUSING | A40034-A40042- | ||
| 1 | (NSS) | HOUSING | A40034-A40042- | |
| 2 | YM123910-49530 | COVER, TOP | A40034-A40042- | |
| 3 | YM261060-80702 | BOLT | A40034-A40042- | |
| 4 | YM124610-49291 | GASKET, COVER | A40034-A40042- | |
| 5 | YM123911-48620 | THERMOSTAT | A40034-A40042- | |
| 6 | YM123500-49550 | GASKET, BOTTOM | A40034-A40042- | |
| 7 | YM238760-30000 | PLUG, PORT | A40034-A40042- | |