| Item | Part No. | Part Name | Qty | Serial No. |
| 6251-21-1100 | Cylinder Block Assembly | 660776- | ||
| 1 | Block, Cylinder | 660776- | ||
| 2 | 6150-21-1490 | Bushing | 660776- | |
| 3 | 6150-29-1210 | Cap, Main, No.1.2,3,4,5,6 | 660776- | |
| 4 | 6150-29-1250 | Cap, Main, No.7 | 660776- | |
| 5 | 04020-00514 | Pin, Dowel | 660776- | |
| 6 | 6150-21-1710 | Bolt | 660776- | |
| 7 | 01643-31645 | Washer | 660776- | |
| 8 | 07043-70108 | Plug, Taper | 660776- | |
| 9 | 07043-70211 | Plug | 660776- | |
| 10 | 07043-70617 | Plug | 660776- | |
| 11 | 07040-12414 | Plug | 660776- | |
| 12 | 07040-13016 | Plug | 660776- | |
| 13 | 07002-23034 | O-ring | 660776- | |
| 14 | 07002-22434 | O-ring | 660776- | |
| 15 | 07046-43016 | Plug | 660776- | |
| 16 | 07046-44016 | Plug | 660776- | |
| 17 | 6154-21-1981 | Plug | 660776- | |
| 18 | 07000-72022 | O-ring | 660776- | |
| 19 | 07046-43516 | Plug | 660776- | |
| 20 | 04020-00820 | Pin, Dowel | 660776- | |
| 21 | 6150-21-1170 | Tube | 660776- | |
| 22 | 6150-41-2430 | Pin | 660776- | |
| 23 | 6150-41-2440 | Pin | 660776- | |
| 24 | 04025-00408 | Pin, Spring | 660776- | |
| 25 | 6150-21-4770 | Pin, Dowel | 660776- | |
| 26 | 6150-41-2430 | Pin | 660776- | |
| 27 | 04025-00512 | Pin, Spring | 660776- | |
| 28 | 6154-21-2220 | Liner, Cylinder | 660776- | |
| 29 | 6150-21-2230 | O-ring | 660776- | |
| 30 | 6251-21-2240 | O-ring | 660776- | |
| 31 | 6150-21-2250 | Seal | 660776- | |
| 32 | 6154-21-1810 | Nozzle | 660776- | |
| 33 | 01435-00816 | Bolt | 660776- |