Diesel 10 (also known as Classic Diesel 10) is an engine in the Classics theme.
- Spooky Diesel 10
- Diesel 10 as The Joker
- Launcher Diesel 10 (from Diesel 10 Launcher)
- Diesel 10 as Solomon Grundy (from DC Super Friends 9-Pack 3 (2016))
- Diesel 10 as Plankton (from SpongeBob SquarePants 9-Pack)
- Construction Diesel 10
- Steel Diesel 10
- Diesel 10 as Deadshot (from DC Super Friends 9-Pack 2 (2017))
- Diesel 10 as Lord Zedd (from Mighty Morphin Power Rangers 9-Pack)
- Diesel 10 as Shredder (from Teenage Mutant Ninja Turtles 9-Pack)
- Yeti Diesel 10
- Pop Art Diesel 10
- Diesel 10 was released within boxes of 2015 Series 2 blind bags. This makes him the only engine during that year to be found in two series.
- Diesel 10 has a moulded face, while other engines have computer printed ones. Gator, Scruff, Ben, Bill, Flynn, and Duck also have this feature.
- Diesel 10 is shortened to "D-10" on checklists and boxes because of spacing.