These buses were also introduced for the OMO city-railbus Service 25.
| Model | Bristol RESL6G | |||
| Details |
Single deck with Eastern Counties bodywork, front entrance and centre exit Gardner 8.4 Litre 6HLW engine 42 seats |
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| Number | Delivered | Withdrawn | Reg No | Notes |
| 519 | 1967 | KHP519E | 1974: Reconfigured 41 seats 1974: transferred to WMPTE | |
| 520 | 1967 | KHP520E | 1974: transferred to WMPTE | |
| 521 | 1967 | KHP521E | ||
|