| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 427-01-A1400 | ENGINE, COMPLETE AND SERVICE | A50001-A50016- | |
| 427-01-A1401 | ENGINE, COMPLETE AND SERVICE | A50017-A50022- | ||
| 427-01-A1402 | ENGINE, COMPLETE AND SERVICE | A50023 AND UP- | ||
| PLEASE CONTACT YOUR KOMATSU DISTRIBUTOR FOR MODIFICATION INSTRUCTIONS WHEN UPGRADING ENGINE TO 427-01-A1402. | ||||
| F1 - WHEN ORDERING A SERVICE ENGINE, GIVE COM PLETE SERIAL NUMBER (INCLUDING LETTERS AND NUMERALS) SHOWN ON THE ENGINE TO BE REPLACED. |