Tar Wagons are painted black with "TAR" written on the sides in white. They are used for transportation of Tar across the North Western Railway. James once crashed into some after losing control of his trucks.
- Some tar wagon models are on display at Drayton Manor.
- In Toad Stands By, a tar tanker can be seen with a narrow gauge truck face.
- ERTL (with milk tanker; discontinued)
- Wooden Railway (discontinued)
- Take-Along (discontinued)
- Motor Road and Rail (discontinued outside Asia)
- TrackMaster (discontinued)
- Bachmann (HO and large scale; HO discontinued)
- De Agostini
- Nakayoshi (discontinued)
- Wind-up Trains