Lego Technic CAT D11 Bulldozer Construction Machine Building Set

Lego Technic 42131 App-Controlled CAT D11 Bulldozer – Highly detailed 3854 Piece Building Kit

Lego Technic CAT D11 Bulldozer is a True-to-Life replica of an iconic construction machine. Now you can build your own authentic version of this mighty machine with the Lego D11 Bulldozer building set. Relax and take your time to assemble all the details in this rewarding project. Explore the many mechanical functions. Use the Control+ app to drive and operate the bulldozer – just like the real thing!


Lego Technic CAT D11 Bulldozer 42131 is App-controlled and contains 3854 Pieces. This large set lets 18+, and adults enjoy quality ‘me time’ focusing on their passion. Just like the real CAT bulldozer, this model is built in modular sections. With many authentic features and functions packed into this model, there are lots to discover.
Lego Technic CAT D11 Bulldozer - The built set and the content box
Take control of your bulldozer model: Construction fans will love building this action-packed Lego Technic Cat D11 Bulldozer. Use the Control+ app to operate and explore this heavy-duty machine. Use the app to drive and steer. The app delivers realistic movements as you raise, lower, and tilt the blade or raise and lower the ripper and ladder.

Explore engineering

Lego Technic buildable models feature realistic movement and mechanisms that let Lego builders explore engineering concepts in an approachable and realistic way.

Developmental Focus

This item from Lego will strengthen and help improve the relationship between development and play. These are a few areas where it can play a part: Cognitive Enforcement, Imagination Growth, Physical Motor Skills, and Sensory Skills.

Authentic features and functions

This meticulously detailed model is packed with true-to-life mechanisms that Cat fans will love.
Lego Technic CAT D11 Bulldozer - The lego set box

A rewarding building challenge

This Cat replica measures over 10 in. (26 cm) high, 22 in. (57 cm) long, and 14.5 in. (37 cm) wide. It contains 3,854 pieces and offers hours of mindful building with a cool model to display.

Once built, the vehicle is a joy to look at. You will find details everywhere you look, from platforms to railways, to an un-deployed side ladder, opening doors, and more. It would be a great display piece if you can find a shelf big enough. Now, Download the Lego Technic Control + app. Open the door and press the red lever on the bulldozer. Follow the prompts, connect, and wait for the calibration sequence. Once that’s done you’ll be ready to doze! The controls are complex enough to be fun, but simple enough to grasp immediately. The Cat drives slowly but steadily and has very responsive controls. It doesn’t roll on its own, but that’s totally understandable, given that it’s a construction vehicle.

Perfect Gift for Lego Technic Fans

Looking for the perfect gift idea for someone that loves Lego Technic? Then this App-controlled Lego D11 Bulldozer should be on the top of your list. This Building set Lego 42131 has 3854 Pieces and is great for anyone 18 years and older. Anyone who loves Lego Technic or Building sets will be beyond excited to get their hands on this. It will make a great gift for birthdays, holidays, or any special occasion.

Safety Information:
WARNING: Choking Hazard. Small parts. Not suitable for children under 3 years.
An adult building the Lego Technic CAT D11 Bulldozer set

Product Features and Highlights

» Build a mighty construction vehicle packed with details with this Lego model building set
» Lego Technic CAT D11 Bulldozer set has 3854 Pieces and is Lego Technic App-Controlled
» Enjoy a rewarding build, then explore the model’s many features and functions
» The new Lego track element gives the bulldozer its realistic movement
» Use the Control+ app to operate your bulldozer and bring the bulldozer model to life
» You can drive & steer, then raise, lower & tilt the blade, or raise & lower the ripper & ladder
» This Cat replica measures over 10 in (26 cm) H, 22 in (57 cm) L, and 14.5 in (37 cm) W
» Requires 6 x AA batteries (not included). Recommended Admiral NiMH AA Rechargeable batteries
» Lego 42131 set also includes 2 x no. 15 motors, 2 x large motors, and 1 x hub
» The Lego D11 Bulldozer model is meticulously detailed to replicate the full-sized model
» When done, it will have the authentic colors and graphics that Cat enthusiasts will love
» This advanced buildable model is for fans who are looking for an immersive building challenge
» Lego Technic components meet rigorous industry standards
» Components are dropped, heated, crushed, twisted, and analyzed to meet strict global safety standards
» This impressive construction vehicle set makes a top gift idea. Perfect for ages 18 and up.

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