| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A20637-A20813- | |||
| 1 | YM129466-49300 | ELBOW | A20637-A20813- | |
| 2 | YM123900-42000 | WATER PUMP | A20637-A20813- | |
| (NSS) | PLUG | A20637-A20813- | ||
| (NSS) | PLUG | A20637-A20813- | ||
| (NSS) | BOLT | A20637-A20813- | ||
| 3 | YM123900-42050 | GASKET | A20637-A20813- | |
| 4 | YM123900-49820 | GASKET | A20637-A20813- | |
| 5 | YM261060-80552 | BOLT | A20637-A20813- | |
| 6 | YM123900-42450 | PULLEY, FAN | A20637-A20813- | |
| 7 | YM123900-42480 | BELT, FAN | A20637-A20813- | |
| 8 | YM123910-44740 | FAN, ENGINE | A20637-A20813- | |
| 9 | YM123900-44760 | SPACER, FAN | A20637-A20813- | |
| 10 | YM261061-00452 | BOLT | A20637-A20813- | |
| 11 | YM121851-11970 | CONNECTOR | A20637-A20813- | |
| 12 | YM230000-25000 | CLAMP, HOSE | A20637-A20813- | |
| 13 | YM123910-49032 | HOSE, BLOCK | A20637-A20813- | |
| 14 | OIL COOLER (SEE FIG. A0120-01A0) | A20637-A20813- | ||
| YM123910-49600 | TUBE, OUTLET | A20637-A20813- | ||
| 15 | (NSS) | TUBE | A20637-A20813- | |
| 16 | YM123910-49610 | PROTECTOR | A20637-A20813- | |
| 17 | THERMOSTAT (SEE FIG. A0141-01A0) | A20637-A20813- | ||
| 18 | YM261060-80502 | BOLT | A20637-A20813- | |
| 19 | YM261060-80702 | BOLT | A20637-A20813- | |
| 20 | YM261060-80602 | BOLT | A20637-A20813- | |
| 21 | YM121250-44901 | SWITCH, TEMPERATURE | A20637-A20813- | |
| 22 | YM124465-44950 | GASKET | A20637-A20813- | |
| 23 | YM121450-42450 | PLUG | A20637-A20813- | |
| 24 | ENGINE BLOCK (SEE FIG. A0110-01A0) | A20637-A20813- | ||
| 25 | CYLINDER HEAD (SEE FIG. A0103-01A0) | A20637-A20813- | ||
| 26 | GEAR COVER (SEE FIG. A0111-01A0) | A20637-A20813- |
