A detailed LEGO model of a Caterpillar-style tracked dozer. This model uses electric motors for the tracks, remote control for driving and steering, and pneumatic power for movement of the blade. The hood enclosure doors open to reveal a detailed engine compartment.
The ripper on the back of the tractor is removable, and in its place a LEGO Power Functions battery pack can be attached. An infrared receiver sits in the cab behind the seat for operating the dozer. Two electric motors, one per track, allow for forward, reverse, and steering operation.