The basic design of the CAT D350D was made by the British company DJB, which had been bought by Caterpillar in 1986. The articulated dump truck with a payload of 35 sht (31,8 metric tonnes) featured a 6×6 drive which had not yet seen widespread use at this time.

Unfortunately, the Ertl model of this truck is made rather coarsely with a rather toy-like quality.