---
product_id: 402810023
title: "LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces)"
brand: "lego"
price: "€ 100.17"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.es/products/402810023-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set
store_origin: ES
region: Spain
---

# App-controlled 3854 pieces Realistic movement LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces)

**Brand:** lego
**Price:** € 100.17
**Availability:** ❌ Out of Stock

## Summary

> 🚧 Build, Control, Conquer!

## Quick Answers

- **What is this?** LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) by lego
- **How much does it cost?** € 100.17 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/402810023-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set)

## Best For

- lego enthusiasts

## Why This Product

- Trusted lego brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Authentic Details:** Meticulously designed to replicate the iconic Cat D11 with stunning colors and graphics.
- • **Robust and Reliable:** Crafted with LEGO Technic components that meet rigorous safety and quality standards since 1958.
- • **Control at Your Fingertips:** Operate your bulldozer with the CONTROL+ app for an immersive, tech-savvy experience.
- • **Unleash Your Inner Builder:** Dive into a rewarding 3,854-piece construction experience that challenges your creativity.
- • **Perfect Gift for Enthusiasts:** An ideal present for fans of construction vehicles and LEGO aficionados alike.

## Overview

The LEGOTechnic App-Controlled Cat D11 Bulldozer 42131 is a detailed 3,854-piece building set designed for adults. This model features realistic movement, app-controlled operation, and authentic design elements, making it a perfect gift for construction vehicle enthusiasts. With dimensions of 22 in. long and 10 in. high, it offers a challenging yet rewarding building experience.

## Description

Celebrate a hero of the construction world as you build a replica version of the biggest Cat dozer with this LEGO Technic™ App-Controlled Cat D11 Bulldozer (42131) kit. This large set lets adults enjoy quality ‘me time’ focusing on their passion. Just like the real Cat bulldozer, this model is built in modular sections. LEGO fans will love the new-for-October-2021 LEGO element – a large track that can be tightened and loosened. And the build is just the start! With many authentic features and functions packed into this model, there’s lots to discover. Take control of your bulldozer model Use the CONTROL+ app to operate and explore this heavy-duty machine. Use the app to drive and steer. The app delivers realistic movement 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.

## Features

- Build a mighty construction vehicle packed with details with this huge LEGO Technic App-Controlled Cat D11 Bulldozer 42131 model building set for adults
- Enjoy a rewarding build, then explore the model’s many features and functions. See the new-for-October-2021 LEGO track element that gives the bulldozer its realistic movement
- Use the CONTROL+ app to operate your bulldozer. Bring the bulldozer model to life as you drive and steer, then raise, lower and tilt the blade or raise and lower the ripper and ladder.
- Looking for the best gifts for yourself or any fan of Cat bulldozers and other cool vehicles? This impressive construction vehicle set makes a top gift idea
- This Cat replica measures over 10 in. (26 cm) high, 22 in. (57 cm) long and 14.5 in. (37 cm) wide
- Requires 6 x AA batteries (not included). The set also includes 2 x no. 15 motors, 2 x large motors and 1 x hub
- This Cat model is meticulously detailed to replicate the full-sized model with authentic colors and graphics that Cat enthusiasts will love
- The LEGO Technic universe offers advanced buildable models for LEGO fans who are looking for an immersive building challenge
- LEGO Technic components meet rigorous industry standards to ensure they are consistent, compatible and connect reliably every time – it’s been that way since 1958
- LEGO Technic components are dropped, heated, crushed, twisted and analyzed to make sure they meet strict global safety standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 13.05 Pounds |
| Item Dimensions | 22.91 x 18.9 x 6.69 inches |
| Number of Pieces | 3854 |
| Theme | Transportation |
| Subject Character | Cat |
| Color | Multicolor |
| Manufacturer Minimum Age (MONTHS) | 216 |
| Special Features | Buildable |
| Educational Objective | Creative Thinking |
| Material Type | Plastic |

## Images

![LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - Image 1](https://m.media-amazon.com/images/I/81d14EnNNeL.jpg)
![LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - Image 2](https://m.media-amazon.com/images/I/811EfETv1rL.jpg)
![LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - Image 3](https://m.media-amazon.com/images/I/912CeiYwT7L.jpg)
![LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - Image 4](https://m.media-amazon.com/images/I/71tCQ+qhl1L.jpg)
![LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - Image 5](https://m.media-amazon.com/images/I/816PGQzSpiL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Y’all could take $150 off, why such a ridiculous price?**
A: One word, Lego. No, but this is a very big, nice, well detailed set, and it’s remote controlled. The motors and the wireless hub cost around $150-$200. Not saying the price is perfect, but I definitely see why it is what it is.

**Q: Why is this priced like it is made of gold ?**
A: So tightwads like you will have something to complain about. Nobody is forcing you to buy it, are they?

**Q: Difference between frustration free packaging and standard packaging**
A: Frustration free packaging means they ship the LEGO box "as is" meaning they don't put the actual box inside another box. They just put the shipping label on the actual box and that's how it is shipped. I would never choose this option because too many things can and probably will go wrong by choosing this option. You're better off doing standard packaging where the LEGO package is put inside a cardboard box and then it is shipped. Better protection...

**Q: Is there an up armored version?**
A: unfortunately this is the only version currently available.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The meticulous and wonderful piece of work
*by H***H on April 16, 2025*

Hard to make it but worthy to make it.Awesome piece

### ⭐⭐⭐⭐⭐ Make sure you get the gears right
*by R***1 on March 26, 2025*

Fun and challenging build I really enjoyed it.

### ⭐⭐⭐⭐⭐ This is a GREAT KIT!
*by T***M on October 19, 2022*

Another home run for Lego! Instructions are superb, almost without exception. There were no missing parts, and everything fit perfectly, though when marrying some of the larger assemblies together, you have to do a little finagling, but that should be expected on any model this complex. There was a moment of trepidation when the model was complete and I started it for the first time, but amazingly it worked perfectly!Yes, it is a lot of money but when you consider the amount of engineering hours that had to go into developing this monster and it's fairly limited market, plus the number of blocks needed to build, the price is really quite reasonable. You can trust Lego parts to fit together like they should without being loose or requiring a hammer and quality like that costs extra.This is not a model for the inexperienced or young and mechanical ability is a plus. Build time was about 26 hours - give or take - because I really didn't time myself.

## Frequently Bought Together

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-05*