| Item | Part No. | Part Name | Qty | Serial No. |
| 20N-60-16100 | SWING MOTOR ASS'Y | 4501- | ||
| 1 | \6\ | HOUSING | 4501- | |
| 2 | 20N-60-16110 | SEAL,DUST | 4501- | |
| 3 | \6\ | PLATE | 4501- | |
| 4 | \6\ | GEROLER | 4501- | |
| 5 | \6\ | PLATE | 4501- | |
| 6 | \6\ | HOUSING | 4501- | |
| 7 | 20N-60-16120 | RING,SEAL | 4501- | |
| 8 | 20N-60-16170 | RING,SEAL | 4501- | |
| 9 | 20N-60-16160 | RING,SEAL | 4501- | |
| 10 | \6\ | SHAFT | 4501- | |
| 11 | 20N-60-16140 | SEAL,OIL | 4501- | |
| 12 | \6\ | BEARING | 4501- | |
| 13 | \6\ | CUP | 4501- | |
| 14 | \6\ | SPACER | 4501- | |
| 15 | \6\ | SPACER | 4501- | |
| 16 | \6\ | DRIVE | 4501- | |
| 17 | 20N-60-16150 | SEAL | 4501- | |
| 18 | \6\ | RING | 4501- | |
| 19 | \6\ | DRIVE | 4501- | |
| 20 | \6\ | VALVE | 4501- | |
| 21 | \6\ | PLATE | 4501- | |
| 22 | 20N-60-16180 | SEAL,OUTER | 4501- | |
| 23 | 20N-60-16190 | SEAL,INNER | 4501- | |
| 24 | \6\ | SPRING | 4501- | |
| 25 | \6\ | PIN | 4501- | |
| 26 | \6\ | BALL | 4501- | |
| 27 | \6\ | PLUG | 4501- | |
| 28 | 20N-60-16220 | O-RING | 4501- | |
| 29 | \6\ | PLUG | 4501- | |
| 30 | 20N-60-16210 | O-RING | 4501- | |
| 31 | \6\ | BOLT | 4501- |