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| Operator: | United Automobile | Fleet No: | BU604 |
| Chassis: | Bristol MW5G | Chassis No: | 164.110 |
| Body: | ECW B45F | Body No: | 11883 |
| Dec 60 | United Automobile Services Limited, Darlington (BUE604) |
| 1961 | In service with United Automobile Services Limited, Darlington (BU604) |
| Nov 64 | Fleet number changed to U604 |
| Jan 69 | Fleet number changed to 2604 |
| <Mar 75 | Transferred to Durham |
| Jul 76 | Out of service with United Automobile Services Limited, Darlington (2604) |