Ships hit by U-403
See the profile page for U-403
| Date | U-boat | Commander | Name of ship | Tons | Nat. | Convoy | ||
| 16 Apr, 1942 | U-403 | Heinz-Ehlert Clausen | Empire Howard | 6.985 |  | br | PQ-14 | |
| 19 Feb, 1943 | U-403 | Heinz-Ehlert Clausen |  | Zeus | 5.961 |  | gr | ONS-165 |
| 12.946 | ||||||||
| 2 ships sunk (12.946 tons).
| ||||||||