| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 22B-01-41340 | Bracket | 50001- | |
| 2 | 01010-81240 | Bolt | 50001- | |
| 3 | 175-54-34170 | Washer | 50001- | |
| 4 | 6543-01-0010 | SCR Assembly | 50001- | |
| 5 | 6533-11-2030 | Clamp | 50001- | |
| 6 | 6533-11-2020 | Gasket | 50001- | |
| 7 | 22B-01-43150 | Bolt | 50001- | |
| 8 | 01594-01008 | Nut | 50001- | |
| 9 | 6533-01-0010 | Komatsu diesel Oxidation Catalyst (KDOC) Assembly | 50001- | |
| 10 | 6534-91-1120 | Clamp | 50001- | |
| 11 | 6534-91-1130 | Gasket | 50001- | |
| 12 | 21K-01-41250 | Bolt | 50001- | |
| 13 | 22B-01-43140 | Bolt | 50001- | |
| 14 | 01594-01008 | Nut | 50001- | |
| 15 | 6276-11-5210 | Tube | 50001- | |
| 16 | 6276-11-5840 | Elbow | 50001- | |
| 17 | 6535-91-1120 | Clamp | 50001- | |
| 18 | 6535-91-1130 | Gasket | 50001- | |
| 19 | 6540-71-1110 | Injector | 50001- | |
| 20 | 6166-13-5990 | Bolt | 50001- | |
| 21 | 01643-30623 | Washer | 50001- | |
| 22 | 6253-11-5170 | Gasket | 50001- | |
| 23 | 6276-81-8790 | Cover | 50001- | |
| 24 | 2A7-01-11921 | Pipe | 50001- | |
| 25 | 6534-91-1120 | Clamp | 50001- | |
| 26 | 6534-91-1130 | Gasket | 50001- |