| Item | Part No. | Part Name | Qty | Serial No. |
| 6643-21-1016 | CYLINDER BLOCK A. | | 174428- |
| 6643-21-1026 | CYLINDER BLOCK A. | | 174428- |
| 1 | \6\ | BLOCK | | 174428- |
| 6610-21-1040 | BUSHING ASS'Y,CAMSHAFT | | 174428- |
| 2 | 6610-21-1410 | BUSHING,FRONT | | 174428- |
| 3 | 6610-21-1420 | BUSHING | | 174428- |
| 4 | 6610-11-1611 | BOLT | | 174428- |
| 5 | 6610-11-1620 | WASHER | | 174428- |
| 6 | 6620-21-3610 | PIN,DOWEL¤ GEAR COVER | | 174428- |
| 7 | 6620-21-3620 | PIN,DOWEL¤ GEAR COVER | | 174428- |
| 8 | 6610-11-1410 | PIN,DOWEL¤ CYLINDER HEAD | | 174428- |
| 9 | 02720-20810 | PLUG | | 174428- |
| 11 | 02400-10416 | PIN,DOWEL¤ CAM FOLLOWER | | 174428- |
| 12 | 6610-21-2720 | PLUG,OIL HEADER | | 174428- |
| 13 | 02720-20607 | PLUG | | 174428- |
| 14 | 02720-20204 | PLUG | | 174428- |
| 15 | 02720-20810 | PLUG | | 174428- |
| 16 | 6600-01-2860 | PLUG | | 174428- |
| 17 | 02720-21214 | PLUG | | 174428- |
| 19 | 6610-21-2790 | PIN,DOWEL | | 174428- |
| 20 | 6691-51-9930 | FLANGE,OIL HEADER | | 174428- |
| 20A | 02720-20810 | PLUG | | 174428- |
| 21 | 6610-21-5671 | GASKET (K2) | | 174428- |
| 22 | 02030-20625 | BOLT | | 174428- |
| 23 | 02310-11224 | WASHER,SPRING | | 174428- |
| 25 | 6610-21-2213 | LINER,CYLINDER | | 174428- |
| 26 | 6610-21-2240 | SEAL,CREVICE (K2) | | 174428- |
| 27 | 6610-21-2221 | O-RING (K2) | | 174428- |
| 28 | 6610-21-2250 | O-RING (K2) | | 174428- |
| 30 | 04418-02550 | SCREW | | 174428- |
| 31 | 6610-29-2330 | SHIM¤ 0.18MM,(SERVICE PARTS) | | 174428- |
| 6610-28-2330 | SHIM¤ 0.20MM,(SERVICE PARTS) | | 174428- |
| 6610-27-2330 | SHIM¤ 0.23MM,(SERVICE PARTS) | | 174428- |
| 6610-26-2330 | SHIM¤ 0.51MM,(SERVICE PARTS) | | 174428- |
| 6610-25-2330 | SHIM¤ 0.79MM,(SERVICE PARTS) | | 174428- |
| 6610-24-2330 | SHIM¤ 1.57MM,(SERVICE PARTS) | | 174428- |
| 36 | 02701-11208 | ELBOW,BYPASS FILTER | | 174428- |
| 37 | 6610-81-8820 | ELBOW,PRESSURE GAUGE | | 174428- |
| 37A | 6610-81-8950 | CAP | | 174428- |
| 39 | 6620-81-1117 | PLATE¤ NAME,(LIMITED SUPPLY) | | 174428- |
