| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER II (SEE FIG. A0100-01A1) | A60049-- | |||
| YM723907-11100 | CYLINDER HEAD | A60049-- | ||
| 1 | (NSS) | HEAD, CYLINDER | A60049-- | |
| 2 | YM120325-11160 | GUIDE, EXHAUST VALVE | A60049-- | |
| 3 | YM123907-11160 | GUIDE, INTAKE VALVE | A60049-- | |
| 4 | YM238760-20000 | PLUG | A60049-- | |
| 5 | YM238760-30000 | PLUG | A60049-- | |
| 6 | YM272414-00000 | PLUG | A60049-- | |
| 7 | YM123907-11100 | VALVE, INTAKE | A60049-- | |
| 8 | YM123907-11110 | VALVE, EXHAUST | A60049-- | |
| 9 | YM123907-11120 | SPRING, VALVE | A60049-- | |
| 10 | YM123907-11180 | RETAINER, SPRING | A60049-- | |
| 11 | YM124160-11340 | SEAL, INTAKE VALVE | A60049-- | |
| 12 | YM124950-11340 | SEAL, EXHAUST VALVE | A60049-- | |
| YM123907-11510 | VALVE BRIDGE | A60049-- | ||
| 13 | YM129150-11750 | NUT | A60049-- | |
| 14 | YM123907-11830 | SCREW | A60049-- | |
| 15 | (NSS) | BRIDGE, VALVE | A60049-- | |
| 16 | YM273100-70001 | KEEPER, VALVE | A60049-- | |
| 17 | YM123907-11820 | SCREW, BRIDGE | A60049-- | |
| 18 | YM238760-05000 | PLUG | A60049-- | |
| 19 | YM243110-00120 | O-RING | A60049-- | |
| 20 | YM119802-11870 | PROTECTOR, NOZZLE | A60049-- | |
| 21 | YM119625-11880 | SEAT, NOZZLE | A60049-- | |
| 22 | YM123907-07900 | LIFT, ENGINE | A60049-- | |
| 23 | YM261061-00202 | BOLT | A60049-- | |
| 24 | YM123907-11550 | SEAT, BRIDGE | A60049-- | |
| 25 | YM119174-01200 | BOLT | A60049-- | |