| Item | Part No. | Part Name | Qty | Serial No. |
| 21U-32-31300 | Track Shoe Assembly | 20509- | ||
| 1 | 21U-32-31110 | Shoe | 20509- | |
| 2 | 20S-32-76131 | Shoe, Regular | 20509- | |
| 3 | 20S-32-11180 | Pin | 20509- | |
| 4 | 20S-32-11210 | Bushing | 20509- | |
| 5 | 20S-32-76151 | Bolt | 20509- | |
| 6 | 21U-32-31110 | Shoe | 20509- | |
| 7 | 20S-32-76141 | Shoe, Master | 20509- | |
| 8 | 20S-32-11190 | Pin, Master | 20509- | |
| 9 | 20S-32-11220 | Pin, Lock | 20509- | |
| 10 | 20S-32-11210 | Bushing | 20509- | |
| 11 | 20S-32-76151 | Bolt | 20509- |