| Item | Part No. | Part Name | Qty | Serial No. |
| \6\ | CYLINDER BLOCK ASSEMBLY | 501591- | ||
| 1 | 6271-21-1110 | BLOCK, CYLINDER | 501591- | |
| 2 | \5\6204-29-1210 | CAP, MAIN METAL, NO. 1, 2, 3, 4 | 501591- | |
| 3 | \5\6204-29-1220 | CAP, MAIN METAL, NO. 5 | 501591- | |
| 4 | 6204-21-1610 | BOLT, MAIN CAP | 501591- | |
| 5 | 6141-21-1530 | RING, DOWEL | 501591- | |
| 6 | 6206-21-1430 | BUSHING, CAMSHAFT | 501591- | |
| 7 | 6206-21-1420 | BUSHING, CAMSHAFT | 501591- | |
| 8 | 07046-42216 | PLUG | 501591- | |
| 9 | 07046-42516 | PLUG | 501591- | |
| 10 | 07046-43016 | PLUG | 501591- | |
| 11 | 07046-44016 | PLUG | 501591- | |
| 12 | 07042-70312 | PLUG | 501591- | |
| 13 | 6215-81-9710 | O-RING | 501591- | |
| 14 | 6215-81-9510 | PLUG | 501591- | |
| 15 | 6204-51-1711 | BUSHING, OIL PUMP | 501591- | |
| 16 | 6140-21-1130 | BUSHING, DOWEL | 501591- | |
| 17 | 04020-00820 | PIN, DOWEL | 501591- | |
| 18 | 04020-01228 | PIN, DOWEL | 501591- | |
| 19 | 04025-00408 | PIN, SPRING | 501591- | |
| 20 | 07046-41810 | PLUG | 501591- | |
| 21 | 07043-70108 | PLUG | 501591- | |
| 22 | 6136-52-1620 | PIN, DOWEL | 501591- | |
| 23 | 6204-51-1620 | SHAFT | 501591- | |
| 24 | 6207-21-1190 | PIN | 501591- |