--- product_id: 441732694 title: "Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult" brand: "mould king" price: "VT71557" currency: VUV in_stock: true reviews_count: 12 category: "Mould King" url: https://www.desertcart.vu/products/441732694-mould-king-13112-rc-excavator-building-set-1830-pieces-building store_origin: VU region: Vanuatu --- # App & remote control modes 360° rotating cab 1830 precision pieces Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult **Brand:** mould king **Price:** VT71557 **Availability:** ✅ In Stock ## Summary > 🚜 Build, Control, Conquer: The Excavator That Works as Hard as You Play ## Quick Answers - **What is this?** Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult by mould king - **How much does it cost?** VT71557 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/441732694-mould-king-13112-rc-excavator-building-set-1830-pieces-building) ## Best For - mould king enthusiasts ## Why This Product - Trusted mould king brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Terrain-Ready Tracks:** Durable, wear-resistant tracks ensure smooth navigation across diverse surfaces, from desk to dirt. - • **360° Realistic Rotation:** Experience true-to-life operation with a fully rotating cab and flexible arm for dynamic play and display. - • **Lego-Compatible Innovation:** Fully compatible with Lego Technic, empowering you to customize and expand your construction universe. - • **Ultimate Control, Anywhere:** Seamlessly switch between app and remote control for full command over your excavator’s every move. - • **Precision Engineering Challenge:** 1830 meticulously designed pieces deliver a rewarding build that sharpens your STEM skills and creativity. ## Overview The Mould King 13112 RC Excavator is a sophisticated 1830-piece building set designed for adults and STEM enthusiasts. Featuring a 360-degree rotating cab, flexible arm, and wear-resistant tracks, it offers realistic remote control via app or traditional controller. Fully compatible with Lego Technic, this set combines hands-on assembly with advanced motorized functions, making it a perfect blend of engineering challenge and interactive fun. ## Description desertcart.com: Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult : Toys & Games Review: Fully Lego compatible - Just finished this build today. I made e modifications that I think turn this into an excellent RC excavator. First I swapped out the dual battery boxes for a single 6 channel battery and remote with proportional controls. Mould King sells it for $40 her on desertcart. It's a tight fit. But will fit into the rear battery box spot unmodified. Just adjust the position of the technic beam on top of the xl motor forward one stud. 2. The mounting brack that attached the rear of the lift cylinder that controls the sticks in and out movement. ( Located on top of the boom) Needed to be raised up by one stud, ( or hole) to make the mechanisn work smoothly and not bond up. 3. The bucket it comes with is way too wide for a real excavator. So I 3d printed my own bucket that looks much more realistic. Basically the same exact shap but half the width. Every piece was there and it's a fun build. Definitely challenging. Pay close attention to details and go slow. Keep an eye on some pieces that look almost identical to each other but have slots in them to mate up to other parts. If you use the wrong ones, you'll regret it later, and be tearing pieces apart to swap them. Trust me! All in all great build. Just needed a few tweaks to make it perfect. Fully 100% compatible with Lego and Lego technic. Even the motors are Lego power functions basically. Review: Totally worth it if you dont need Lego-level quality - If you just want to build a unique and well engineered mechanical model for the joy of doing it, then this is GREAT value. If all of your problems are first-world, you have $500 to burn, AND you demand the absolute finest quality control in every respect, then buy yourself some lego and what are you doing even looking at this? Anyway, I was consistently impressed with the fit, design, and features throughout. The instructions are FINE. There was no point where the quality of instructions was nearly as low as the price. I expected absolute trash based on the price! But this set was clearly produced with much more care than chinas typical level of effort when producing knock-off type products. The parts fit together in a consistent and surprisingly precise way( not as good as lego but way better than COBI). They consistently exceeded my (minimal) expectations with sufficiently detailed instructions, and mechanisms which were engineered with a clear priority for high functionality and aesthetic over cheap simplicity. ## Features - 【RC Excavator truck】 Mould King 13112 is equipped with the 360-degree rotating cab, flexible swinging arm and shovel, The wear-resistant track allows it to travel freely on various terrains. The Building Toy can not only enjoy the fun of assembling, but also can remotely control the truck after assembling, which is very interesting. - 【Easy to Assemble】 It has about 1830 pieces parts. All the parts are packaged into some independent packaging numbered bags, which makes it easier to assemble the building kits. Meanwhile, Following the detailed manual with clear assembly steps, this building toy set is easy to put together even for beginners. - 【STEM projects for learning】 The building blocks are the challenges during assembling and the achievement after finishing. All will love this building kits as a gift . It will not only afford you an opportunity to enjoy fun activities and help you to develop patience and build hands-on skills, but also can work on hands-on skills and stimulate creativity and imagination. - 【Flexible Remote Control】You can control the car toy via remote control or your mobile phone, you just need to download the app and connect it via Bluetooth. It supports 2 remote control modes - remote control mode and programming function. Each mode is simple and easy to use. Enjoy the fun of all control options. - 【Nice for Adults】Building set is a wonderful activity together with family or friends. It is nice for birthday/Christmas/New Year. Hope our interesting building toys bring your family more happiness, if you have any problems, we are always standing by to help. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09XK68NPX | | Additional Features | Battery Operated | | Age Range Description | Adult | | Best Sellers Rank | #176,922 in Toys & Games ( See Top 100 in Toys & Games ) #5,852 in Toy Building Sets | | Brand Name | Mould King | | Color | Multicolor | | Customer Reviews | 4.2 4.2 out of 5 stars (335) | | Educational Objective | Hand-Eye Coordination | | Is Assembly Required | Yes | | Item Dimensions | 18 x 7 x 13 inches | | Item Weight | 5.5 Pounds | | Manufacturer | Mould King | | Manufacturer Minimum Age (MONTHS) | 168.00 | | Manufacturer Part Number | WX13112-WJN | | Material Type | Plastic | | Model Name | 13112 | | Model Number | WX13112-WJN | | Model Year | 2022 | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Number of Pieces | 1830 | | Number of Players | 1 | | Operation Mode | manual, remote control | | Power Source | Battery Powered | | Set Name | 13112 | | Size | 18 inches x 7 inches x 13 inches | | Supported Battery Types | 1 lithium-ion battery | | Target Audience | Unisex-kids | | Theme | Vehicle | | Toy Building Block Type | Interlocking Toy Building Block | | UPC | 731694829577 | ## Images ![Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult - Image 1](https://m.media-amazon.com/images/I/71rHeiYOMAL.jpg) ## Questions & Answers **Q: How many motors and batteries are included?** A: Contains 4 M motors, 1 L motor, 1 servo motor, and two 4.0 lithium batteries. **Q: Is it rechargeable or does it use AA / AAA type bateries？** A: Package includes multi-rechargeable lithium batteries, you don't need to install your own AA/AAA batteries. **Q: How long does a battery last?** A: About 15-20 minutes. **Q: What do I need to do if the product is missing parts?** A: Please contact Mould King by Amazon, we will send the pieces you need for free. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fully Lego compatible *by T***R on August 25, 2025* Just finished this build today. I made e modifications that I think turn this into an excellent RC excavator. First I swapped out the dual battery boxes for a single 6 channel battery and remote with proportional controls. Mould King sells it for $40 her on Amazon. It's a tight fit. But will fit into the rear battery box spot unmodified. Just adjust the position of the technic beam on top of the xl motor forward one stud. 2. The mounting brack that attached the rear of the lift cylinder that controls the sticks in and out movement. ( Located on top of the boom) Needed to be raised up by one stud, ( or hole) to make the mechanisn work smoothly and not bond up. 3. The bucket it comes with is way too wide for a real excavator. So I 3d printed my own bucket that looks much more realistic. Basically the same exact shap but half the width. Every piece was there and it's a fun build. Definitely challenging. Pay close attention to details and go slow. Keep an eye on some pieces that look almost identical to each other but have slots in them to mate up to other parts. If you use the wrong ones, you'll regret it later, and be tearing pieces apart to swap them. Trust me! All in all great build. Just needed a few tweaks to make it perfect. Fully 100% compatible with Lego and Lego technic. Even the motors are Lego power functions basically. ### ⭐⭐⭐⭐⭐ Totally worth it if you dont need Lego-level quality *by N***N on May 8, 2024* If you just want to build a unique and well engineered mechanical model for the joy of doing it, then this is GREAT value. If all of your problems are first-world, you have $500 to burn, AND you demand the absolute finest quality control in every respect, then buy yourself some lego and what are you doing even looking at this? Anyway, I was consistently impressed with the fit, design, and features throughout. The instructions are FINE. There was no point where the quality of instructions was nearly as low as the price. I expected absolute trash based on the price! But this set was clearly produced with much more care than chinas typical level of effort when producing knock-off type products. The parts fit together in a consistent and surprisingly precise way( not as good as lego but way better than COBI). They consistently exceeded my (minimal) expectations with sufficiently detailed instructions, and mechanisms which were engineered with a clear priority for high functionality and aesthetic over cheap simplicity. ### ⭐⭐⭐⭐⭐ Awesome! Mostly *by K***N on August 12, 2024* This is a great build! Drives great, operates great! Only downsides: 1) you have to turn the remote off/on if you want to switch from driving to using the bucket. 2) the drive control is reversed on each side so to go forward one side is the top button the other is the bottom button. Tried to fix that but failed. 3) the bucket is WAY, WAY to big. You can't pick up anything because the weight is too much for the gears. I tried picking up a half bucket of dog food (it was there. Lol) and the gears just clicked or stopped all together. I have also never seen an excavator with a bucket that size (proportion wise) in my life. it looks like they used the bucket from a loader for this model because they didn't feel like making one specifically for the excavators. If they put the right size bucket with this it would be PERFECT. Maybe I'll make one out of ABS sheet for it. Lol ## Frequently Bought Together - Mould King 13112 RC Excavator Building Set for Boys, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Kids - Mould King Bulldozer Technique Building Set, App-Controlled 2.4G RC Bulldozer Truck Construction Vehicle Toys with Engines, DIY Engineering Model Sets for Adults/14+(1508 Pieces) - Mould King 17010 Engineering Dump Truck Building Block Kits, MOC Building Blocks Set to Build, Gift for Kids Age 8+/Adult Collections Enthusiasts(1888 Pieces with Motor/APP Remote Control) --- ## 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.vu/products/441732694-mould-king-13112-rc-excavator-building-set-1830-pieces-building](https://www.desertcart.vu/products/441732694-mould-king-13112-rc-excavator-building-set-1830-pieces-building) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-06*