Pay tribute to a construction hero with the LEGO® Technic Remote-Controlled Cat® D11 Bulldozer (42131), a replica of the largest Cat® bulldozer. This set allows adult builders to enjoy relaxing moments while pursuing their passion. Like the real Cat® bulldozer, this model features modular sections. LEGO fans will love the large track, which can be tightened and loosened (new for October 2021). And building it is just the beginning—the many included functions will continue to impress.

Take control of your bulldozer
Use the CONTROL+ app to drive, steer, and operate this powerful machine. Lower and raise the blade, ripper, and ladder, or tilt the blade to experience astonishingly realistic movements.

A marvel of engineering
LEGO Technic models are renowned for their realistic mechanisms and movements, giving builders hands-on insight into the world of engineering.

• Build a powerful, detailed construction machine – This large LEGO® Technic Remote-Controlled Cat® D11 Bulldozer (42131) is designed for adults who enjoy complex builds.

• Enjoy a rewarding building experience – Explore the many functions and features of the model, including the large track that provides realistic movement (new LEGO® feature, October 2021).

• CONTROL+ app functionality – Bring your bulldozer to life by driving, steering, raising, lowering, and tilting the blade, as well as operating the ripper and ladder.

• Perfect gift – Ideal for yourself or any fan of Cat® bulldozers and other exciting vehicles.

• Size and scale – This Cat® bulldozer replica measures over 26 cm (10 in.) high, 57 cm (22.5 in.) long, and 37 cm (14.5 in.) wide.

• Powered build – Requires 6 AA batteries (not included). The set also includes 2 L motors, 2 XL motors, and 1 hub.

• Authentic details – With its colors and graphics, this detailed Cat® model faithfully replicates the original machine, delighting enthusiasts.

• Complex LEGO® Technic experience – The LEGO® Technic universe offers challenging models for fans ready for an immersive building experience.

• Premium quality – LEGO® Technic elements meet the strictest industry standards. They fit together perfectly and separate easily, as they have since 1958.

• Safety assured – LEGO® Technic elements undergo rigorous drop, heat, crush, and twist testing to ensure they meet the highest global safety standards.