Class 107 Ltd was formed in 1996 to preserve an ex British Railways two car diesel mechanical unit purchased from the East Kent Railway Museum. The Company later purchased the last remaining example of a class 107 centre car, to be used with the two car unit. A second two car unit was purchased in 2000 from the Swindon & Cricklade Railway. The most recent addition is the purchase of a third two car unit from the Caledonian Railway at Brechin.
Class 107 Ltd. now have a fleet of seven Class 107 vehicles. For further details of each vehicle are available from the vehicles index page
September 1984 Ayr Depot DMU Formations
The information below gives the set number of all our vehicles, as recorded in September 1984. Information on their earlier set number would be gratefully received. Also any information as to why 52012 was running with class 101 vehicles would be welcome.
| Vehicle | Unit No. | DMBS | TCL | DMCL |
| 51993 | 107433 | 51993 | 59080 | 53242 |
| 52005 | 107444 | 52005 | 59804 | 52031 |
| 52006 | 107445 | 52006 | 59790 | 52036 |
| 52012 | 101366 | 53577 | 59215 | 52012 |
| 52025 | 107431 | 51991 | 59789 | 52025 |
| 52031 | 107444 | 52005 | 59804 | 52031 |
| 59791 | 107434 | 51994 | 59791 | 52011 |