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| Operator: | United Automobile | Fleet No: | BU51 |
| Chassis: | Bristol LS5G | Chassis No: | 101.012 |
| Body: | ECW B45F | Body No: | 6789 |
| 1953 | United Automobile Services Limited, Darlington (BU51) |
| Jun 54 | In service with United Automobile Services Limited, Darlington (BU51) |
| Nov 64 | Fleet number changed to U51 |
| 1968 | Out of service with United Automobile Services Limited, Darlington (U51) |
| Jun 69 | Wombwell Diesels Company Limited, Wombwell (dealer) |
| Jul 69 | H Cowley Limited, Kirkham (dealer) |