Builder: British Railways: Crewe, Darlington, Derby, Doncaster and Horwich

Power: Diesel-electric

Built: 1952–1962

Number in class: 996

Withdrawn: 1967–present

Numbers: 13000–13116, 13127–13136, 13167–13365; later: D3000–D3116, D3127–D3136, D3167-D3365 (renumbered from above), D3366–D3438, D3454–D3472, D3503–D3611, D3652–D3664, D3672–D3718, D3722–D4048, D4095–D4098, D4115–D4192; later 08001–08958