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
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
15 left in stock
Arrives
Thursday, Nov 20
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Style: A-WX13112
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 for children.
- 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 kids or beginners.
- STEM projects for children's learning The building blocks are the challenges during assembling and the achievement after finishing. Kids will love this building kits as a gift . It will not only afford your kids an opportunity to enjoy fun activities and help your child develop patience and build hands-on skills, but also can work on hands-on skills and stimulate creativity and imagination.
- Flexible Remote ControlYou 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 KidsBuilding set is a wonderful activity together with family or friends. It is nice for children for birthday/children's day/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.
Product Dimensions: 18 x 7 x 13 inches
Item Weight: 5.55 pounds
Item model number: WX13112-WJN
Manufacturer recommended age: 14 years and up
Batteries: 1 Lithium Ion batteries required. (included)
Manufacturer: Mould King
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
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.
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Reviewed in the United States on August 25, 2025 by The_Debrainer
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.
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Reviewed in the United States on May 8, 2024 by Novanoon
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
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Reviewed in the United States on August 12, 2024 by Ken
Pros: Has all 6 functions of a real excavator (all independent of one another): left track (forward/reverse), right track (forward/reverse), swing (rotate left/right), boom (up/down), stick (in/out), and bucket (curl/uncurl). Can swing infinitely in either direction. Fun build with impressive mechanical drive designs. No pieces missing. Cons: The controller is awkward because 1) it lacks analog inputs / each command is either at 0 or 100% and 2) the controller needs to toggle between modes to select between track functions vs. digging functions; you can buy "Mould King M0019 6.0 Powered Module Kit" to separately upgrade to 4 analog + 2 digital functions (too big to be a perfect drop-in replacement). The boom/stick joint is not sturdy. Observations: This is an advanced build; interpretting the manual requires skill and possibly some judgement. Some parts fit tight and require strong adult hands. Both ends of the boom rams attach to rigid carbon fiber shafts. Boom rams can be manually adjusted to match in length. My tracks have remained on without issue (was careful to count track links; spare link was included in package). Front left cab pillar is made from rubber tube that needs to be cut to length. When a ram jams, remove both ends from excavator, manually turn gear to unjam ram, and reinstall. For the $130 price, I'd make this purchase again.
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Reviewed in the United States on April 11, 2024 by CF
bought it as a birthday gift for my husband, and he loved it because the design is very realistic and fits perfectly.
Reviewed in the United States on October 6, 2025 by Mariana Herrera
Missing pieces from each bag that has been opened. First missing piece was replaced after pictures, descriptions and verification of Amazon purchase order. Now after more missing pieces was sent an email to open all remaining bags to check for parts that aren’t supposed to be in them. Why aren’t appropriate items in correct bags? How many more parts are going to be missing from yet unopened bags? It’s not worth the cheap price for this item. Bought this for my children, so far a disappointment. This is what happens when you try to save money, you get poor quality and service. Stick to LEGO!
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Reviewed in the United States on January 21, 2025 by pattersonrf