| Item | Part No. | Part Name | Qty | Serial No. |
| 21K-32-04420 | TRACK SHOE ASS'Y | B20001- | ||
| 1 | 20Y-32-31120 | LINK,TRACK¤ L.H. | B20001- | |
| 2 | 20Y-32-31130 | LINK,TRACK¤ R.H. | B20001- | |
| 3 | 20Y-32-11240 | SEAL | B20001- | |
| 4 | 20Y-32-11171 | BUSHING¤ MASTER | B20001- | |
| 5 | 20Y-32-11141 | BUSHING¤ REGULAR | B20001- | |
| 6 | 20Y-32-31150 | PIN | B20001- | |
| 7 | 21K-32-21520 | SHOE | B20001- | |
| 8 | 20Y-32-31210 | BOLT¤ SHOE (Y0320-K01 | B20001- | |
| 9 | 134-32-61221 | NUT (Y0320-K01 | B20001- | |
| 10 | 20Y-32-11260 | SEAL | B20001- | |
| 11 | 20Y-32-31190 | PIN | B20001- |