The Dyson Lorries are used to help whenever there is an accident where the rails can't reach. They are also used for carrying rolling stock and engines. One was once used to carry Duke to the Skarloey Railway.
- Season 4 - Sleeping Beauty, Thomas and the Special Letter and Special Attraction
- Season 5 - Cranky Bugs, Horrid Lorry, James and the Trouble with Trees, Haunted Henry, Double Teething Troubles, Thomas and the Rumours, Sir Topham Hatt's Holiday, A Surprise for Percy, Busy Going Backwards, and Rusty and the Boulder
- Season 6 - No Sleep for Cranky (stock footage)
- ERTL (discontinued)