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| Operator: | United Automobile | Fleet No: | BU631 |
| Chassis: | Bristol MW5G | Chassis No: | 164.198 |
| Body: | ECW B45F | Body No: | 11910 |
| Jul 61 | In service with United Automobile Services Limited, Darlington (BU631) |
| Nov 62 | Converted to B44F |
| Nov 64 | Fleet number changed to U631 |
| Jan 69 | Fleet number changed to 2631 |
| <Mar 75 | Transferred to Hexham |
| Dec 75 | Out of service with United Automobile Services Limited, Darlington (2631) |