- Form of 5th and 6th car (non-heavy type) of machines belonging to Tosu Engine Depot around 1970
- Reproduces the appearance unique to early mass-produced cars, such as end beams without jumpers, simple front handrails, and two-open front inspection lid.
- The steps next to the end beams reproduce the sloped straight shape.
- The intermediate truck is a TR101A type without a brake, and the underfloor fuel tank reproduces the shape of a type with a capacity of 4,500 liters.
- Achieves smooth running with a power unit with flywheel
- Headlight lighting (bulb color LED)
- Includes the head marks "Sakura (2 types)", "Hayabusa", and "Akatsuki" (all bowl-shaped) that were displayed when towing the Blue Train. Reproduce the head mark stay that Kyushu's DD51 was equipped with.
- Arnold coupler standard equipment. Replacement knuckle coupler included
- Selectable license plate: "39" "41" "51" "52"
- Manufacturing nameplate "Mitsubishi" printed
- Snow plow included. It is possible to reproduce the form seen on the Sanin Main Line etc.
- Accessories: Whistle, replacement snow plow, selective license plate, head mark, replacement knuckle coupler
