8275 Motorized Bulldozer is a TECHNIC set released in 2007. It contains a yellow bulldozer with turning threads, working pistons, a rising and lower front blade, and a raising and lowering ripper on the back. It contains the Power Functions remote control, two receivers, a battery box, two motors, and two XL motors. It requires six AA batteries and three AAA batteries, which are not included. The alternative model is a simple r/c track vehicle.