--- product_id: 383794218 title: "LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces)" price: "¥339183" currency: JPY in_stock: true reviews_count: 13 url: https://www.desertcart.jp/products/383794218-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set store_origin: JP region: Japan --- # App-Controlled via CONTROL+ 5 powerful motors + battery powered 3,854 precision pieces LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) **Price:** ¥339183 **Availability:** ✅ In Stock ## Summary > 🚜 Build. Control. Conquer. Own the ultimate LEGO bulldozer experience. ## Quick Answers - **What is this?** LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - **How much does it cost?** ¥339183 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/383794218-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Command with a Swipe:** Operate your bulldozer seamlessly using the intuitive CONTROL+ app—drive, steer, and manipulate every function remotely. - • **Master the Mighty Build:** Dive into 3,854 meticulously engineered LEGO pieces for an immersive, rewarding construction experience. - • **Elevate Your Creative Play:** Perfect for professionals craving a sophisticated, hands-on escape that blends engineering, creativity, and tech. - • **Engineering Meets Artistry:** Showcase a stunning replica with true-to-life Cat colors, graphics, and modular design that impresses both fans and pros. - • **Realistic Movement, Real Impact:** Experience authentic track tensioning with the new LEGO track element for smooth, lifelike bulldozer motion. ## Overview The LEGO Technic App-Controlled Cat D11 Bulldozer 42131 is a premium 3,854-piece building set designed for adults, featuring authentic Cat design, modular construction, and advanced app-controlled functions powered by 5 motors. This detailed replica offers realistic track movement and multiple controllable features via the CONTROL+ app, delivering a sophisticated blend of engineering challenge and immersive play. ## 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 | |---------------|-------| | Additional Features | Battery Operated | | Age Range Description | Kid | | Asin | B09HY4WL5B | | Best Sellers Rank | #617,625 in Toys & Games (See Top 100 in Toys & Games) #105 in Kids' Play Bulldozers #16,445 in Toy Building Sets | | Brand Name | LEGO | | Color | Black, Yellow | | Customer Reviews | 4.7 4.7 out of 5 stars (375) 4.7 out of 5 stars | | Educational Objective | Creative Building | | Included Components | LEGO Building Elements | | Item Dimensions | 22.91 x 18.9 x 6.69 inches | | Item Type Name | Building Kit | | Manufacturer | LEGO | | Manufacturer Part Number | 6392316 | | Manufacturer Recommended Age | 3 months - 8 years | | Material Type | Plastic | | Model Name | App-Controlled Cat® D11 Bulldozer 42131 | | Model Number | 6392316 | | Model Year | 2021 | | Number Of Pieces | 3854 | | Power Source | battery_powered | | Subject Character | Cat | | Supported Battery Types | AA | | Theme | Vehicle,Vehicles | | Upc | 673419363860 | ## 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/816PGQzSpiL.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/812islWPmzL.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 ### ⭐⭐⭐⭐⭐ This is a GREAT KIT! *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ Get it before it's gone for good, AMAZING build and app control! *by on Reviewed in the United States December 17, 2023* The Lego D11 is an amazing Lego build hands down. It definitely ranks up there with one of the best builds I have done to date. It is a very technical build but not overly complicated in my book. The gearbox is amazing in how it works overall.The app does have some issues which has been reported by others. The fix for me was to uninstall the control app, install and everything worked as it should. Mind you, the original app install went through the testing phases without issue. The issue arose when the build was complete, and nothing would function. But as mentioned, uninstall and reinstall and you should be golden! ### ⭐⭐⭐⭐⭐ Cat D11 *by on Reviewed in the United States May 17, 2026* Nice lego ## Frequently Bought Together - LEGO Technic App-Controlled Cat D11 Bulldozer 42131 Building Set for Adults (3,854 Pieces) - LEGO Technic Liebherr Crawler Crane LR 13000 Set, Build the Ultimate Remote Controlled Construction Vehicle with Control+ App, Winch System and Luffing Jib, Large Model for Adults, Men, Women 42146 - LEGO Technic Audi RS Q e-tron Remote Control Rally Car Toy, Dakar Rally Off-Road Car Model Set, App-Controlled RC with CONTROL+, Gift Idea for Boys, Girls and Fans Aged 10 Plus to Build 42160 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/383794218-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set](https://www.desertcart.jp/products/383794218-lego-technic-app-controlled-cat-d11-bulldozer-42131-building-set) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-10*