| Item | Part No. | Part Name | Qty | Serial No. |
| ENGINE, TIER I (SEE FIG. A0100-01A0) | A90002-A90008- | |||
| 1 | YM12390014200 | TAPPET | A90002-A90008- | |
| 2 | YM12390014400 | ROD, PUSH | A90002-A90008- | |
| YM12390014580 | CAMSHAFT | A90002-A90008- | ||
| 3 | (NSS) | CAMSHAFT | A90002-A90008- | |
| 4 | YM12915002450 | FLANGE | A90002-A90008- | |
| 5 | YM12990014100 | GEAR | A90002-A90008- | |
| 6 | YM22512070140 | KEY | A90002-A90008- | |
| 7 | YM26106080142 | BOLT | A90002-A90008- | |
| 8 | YM12390025060 | SHAFT, IDLER | A90002-A90008- | |
| YM12390025100 | IDLER GEAR | A90002-A90008- | ||
| 9 | (NSS) | GEAR, IDLER | A90002-A90008- | |
| 10 | YM12915025920 | BUSHING, IDLER GEAR | A90002-A90008- | |
| 11 | YM26106080552 | BOLT | A90002-A90008- | |
| 12 | YM12990025900 | GEAR, PUMP | A90002-A90008- | |
| 13 | INJECTION PUMP (SEE FIG. A0133-01A0) | A90002-A90008- | ||
| 14 | ENGINE BLOCK (SEE FIG. A0110-01A0) | A90002-A90008- | ||
| 15 | GEAR COVER (SEE FIG. A0111-01A0) | A90002-A90008- | ||