LEGO Technic Cat D11 Bulldozer 42131

The LEGO Technic Cat D11 Bulldozer (42131) is the largest Caterpillar-licensed LEGO Technic set ever produced, with 3,854 pieces that recreate the world’s largest production crawler dozer in a model that faithfully captures the D11’s massive scale and working features. The Powered Up motorized functions — controlled via the LEGO Technic Caterpillar app through Bluetooth — include blade raise and lower, ripper raise and lower, and drive on both tracks for steering and forward/reverse movement. The dual-track drive system steers the model by varying the speed of the left and right tracks independently. The finished model measures 42cm long, 22cm wide, and 23cm tall. The iconic Caterpillar yellow and black livery is rendered with printed and sticker elements throughout. The interior cab features operator station detail. Developed in close collaboration with Caterpillar. Designed for 18+ adult builders.