| Item | Part No. | Part Name | Qty | Serial No. |
| 6620-11-7010 | HOUSING ASS'Y,ROCKER ARM | | 174428- |
| 6610-11-7020 | HOUSING ASS'Y,ROCKER ARM | | 174428- |
| 1 | 6610-11-7110 | HOUSING | | 174428- |
| 2 | 6710-11-7150 | PLUG,EXPANSION | | 174428- |
| 3 | 6610-11-7140 | PLUG,VENTILATOR | | 174428- |
| 4 | 6710-11-7330 | SCREW | | 174428- |
| 6610-41-5020 | SHAFT ASS'Y,ROCKER ARM | | 174428- |
| 6 | \6\ | SHAFT | | 174428- |
| 7 | 6610-41-5220 | PLUG | | 174428- |
| 6610-41-5030 | ARM ASS'Y,EXHAUST VALVE, NO.1,3,5 | | 174428- |
| 6610-41-5050 | ARM ASS'Y,EXHAUST VALVE, NO.2,4,6 | | 174428- |
| 6620-41-5030 | ARM ASS'Y,INTAKE VALVE, NO.1,3,5 | | 174428- |
| 6620-41-5050 | ARM ASS'Y,INTAKE VALVE, NO.2,4,6 | | 174428- |
| 6610-41-5040 | ARM ASS'Y,EXHAUST VALVE, NO.1,3,5 | | 174428- |
| 6610-41-5060 | ARM ASS'Y,EXHAUST VALVE, NO.2,4,6 | | 174428- |
| 6620-41-5040 | ARM ASS'Y,INTAKE VALVE, NO.1,3,5 | | 174428- |
| 6620-41-5060 | ARM ASS'Y,INTAKE VALVE, NO.2,4,6 | | 174428- |
| 8 | \6\ | ARM,EXHAUST VALVE, NO.1,3,5 | | 174428- |
| 9 | \6\ | ARM,EXHAUST VALVE, NO.2,4,6 | | 174428- |
| 10 | \6\ | ARM,INTAKE VALVE, NO.1,3,5 | | 174428- |
| 11 | \6\ | ARM,INTAKE VALVE, NO.2,4,6 | | 174428- |
| 12 | 6610-41-5330 | BUSHING | | 174428- |
| 12A | 6610-41-5340 | PIN | | 174428- |
| 13 | 6610-41-5350 | SCREW,ADJUSTING | | 174428- |
| 14 | 6610-41-5360 | NUT | | 174428- |
| 6610-41-5070 | ARM ASS'Y,INJECTOR | | 174428- |
| 6610-41-5080 | ARM ASS'Y,INJECTOR | | 174428- |
| 15 | \6\ | ARM | | 174428- |
| 16 | 6710-41-5531 | BUSHING | | 174428- |
| 17 | 6610-41-5540 | SOCKET,INJECTOR | | 174428- |
| 18 | 6610-41-5550 | SCREW,ADJUSTING | | 174428- |
| 19 | 6600-01-2510 | NUT | | 174428- |
| 20 | 6610-11-7310 | CAP,LUBRICATING OIL PIPE | | 174428- |
| 21 | 6610-11-7320 | GASKET (K1) | | 174428- |
| 22 | 6610-11-7811 | GASKET (K1) | | 174428- |
| 23 | 02010-30889 | BOLT | | 174428- |
