| Item | Part No. | Part Name | Qty | Serial No. |
| \0 | (21D-30-12002) | IDLER, ASSEMBLY | 21D5220365- | |
| 1 | 22E-30-11830 | RECOIL SPRING, ASSEMBLY | 21D5220365- | |
| 2 | 22E-30-11920 | SPACER | 21D5220365- | |
| 3 | 22E-30-11870 | PLATE | 21D5220365- | |
| 4 | 22E-30-11930 | BOLT | 21D5220365- | |
| 5 | 21D-30-12260 | SPRING WASHER | 21D5220365- | |
| 6 | 22E-30-11840 | TIE-ROD | 21D5220365- | |
| 7 | 21D-30-12251 | SPRING | 21D5220365- | |
| 8 | 21D-30-12220 | FLANGE | 21D5220365- | |
| 9 | 21D-30-12241 | RING, NUT | 21D5220365- | |
| 10 | 22E-30-11960 | SPRING PIN | 21D5220365- | |
| 11 | 21D-30-12270 | EXPANDER, ASSY. | 21D5220365- | |
| 12 | 21D-30-12310 | GASKET | 21D5220365- | |
| 13 | 21D-30-12290 | PISTON | 21D5220365- | |
| 14 | 21D-30-12320 | GASKET | 21D5220365- | |
| 15 | 21D-30-12280 | CYLINDER | 21D5220365- | |
| 16 | 21D-30-12330 | FITTING | 21D5220365- | |
| 17 | 01010-51245 | BOLT | 21D5220365- | |
| 18 | 21D-09-74500 | SPRING WASHER | 21D5220365- |