--- product_id: 645897792 title: "Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs)" brand: "mould king" price: "1155 kr" currency: DKK in_stock: true reviews_count: 13 category: "Mould King" url: https://www.desertcart.dk/products/645897792-mould-king-10087-l4-engine-building-kit-build-your-own store_origin: DK region: Denmark --- # Rechargeable battery-powered 4-cylinder functional engine replica 1787 precision pieces Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs) **Brand:** mould king **Price:** 1155 kr **Availability:** ✅ In Stock ## Summary > ⚙️ Ignite your inner engineer — build, learn, and power up your passion! ## Quick Answers - **What is this?** Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs) by mould king - **How much does it cost?** 1155 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/645897792-mould-king-10087-l4-engine-building-kit-build-your-own) ## 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 - • **Organized Assembly:** Individually packed components and clear instructions streamline your build, minimizing frustration and maximizing fun. - • **Master the Mechanics:** Build a fully functional 4-cylinder combustion engine and watch it come to life with realistic moving parts. - • **STEM-Powered Creativity:** Boost engineering skills, critical thinking, and problem-solving with a hands-on, educational build experience. - • **Battery-Operated Animation:** Rechargeable battery powers the engine’s automatic operation, making your creation truly dynamic. - • **The Ultimate Gift for Future Engineers:** Perfect for teens 14+, this sophisticated model inspires innovation and makes a standout gift for aspiring mechanics. ## Overview The Mould King 10087 L4 Engine Building Kit is a 1787-piece, battery-powered, 4-cylinder combustion engine replica designed for teens 14 and older. This STEM-focused model offers a hands-on educational experience that enhances engineering skills, creativity, and problem-solving. With rechargeable battery operation and individually packaged parts, it delivers an engaging and organized build that brings mechanical principles to life. ## Description Buy Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs): Building Sets - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: A fun project but it takes patience - I got this kit for my grandson who loves Legos and anything mechanical. Putting this together was a fun challenge and a great introduction to an engines functionality. The only reason for a 4 rating vs a 5 was due to the quality of the directions. The pictorial directions did not give clear step by step visuals so several times during the assembly he had to go back and rebuild a section after carefully studying the drawing. It was still a good fun and challenging project . Review: Outstanding Build. Highly recommend. - This was by far my favorite build so far! It builds well and holds its form. I found it thrilling everytime I completed a section and connected it to another. You can really see the motor come together. I will definitely purchase another build from Mould King. The directions weren't always helpful but I was able to figure it out on my own. I was missing one piece but it didn't stop me from continuing on. I honestly couldn't remember what piece was missing in the end so it must not have been to important. If you're thinking about purchasing one, I highly reccomend it. ## Features - Individual Package - All accessories are packed in an independent packing bag, which is easier for everyone to understand. The package now includes easy-to-understand instructions. It is easy for everyone to understand and assemble. - Build Your Own V8 Engine Kit - You are capable of building your own engine kit, your will get some awesome experiences developing this total model engine toy. To cause this little gadget to become animated unmistakably before their eyes! - Engineering Building Kit for Building Toy Lovers - The Enginediy V8 Engine Model Kit will invigorate little teenagers and adolescents to develop their inventive brain, think truly, and even refine their motor aptitudes simultaneously. Teenagers can make the world with this norm by building their own engine kit. It makes science, mechanical masterminding, and even movement empowerment from start to finish. - Battery-powered Design - Students can learn scientific and industrial principles while enhancing critical thinking and imagination. Sparks mental agility and fosters creative and innovative problem-solving. Requires 6 AAA batteries (not included). - Nice Gift for Mechanical Toy Enthusiast - This technology Engine building blocks with colorful gift packaging is a nice gift for students for their birthday/Christmas/New Year. All of my company's products have been strictly checked before shipping. If you have any problems with your purchase, please feel free to contact us! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D81KL3MZ | | Additional Features | Battery Operated, Easy Storage, Non Toxic | | Best Sellers Rank | #204,237 in Toys & Games ( See Top 100 in Toys & Games ) #3,464 in Educational Science Kits | | Brand Name | Mould King | | Customer Reviews | 4.2 4.2 out of 5 stars (528) | | Educational Objective | Engineering Skills, Creative Thinking, Problem Solving Scientific Thinking | | Is Assembly Required | Yes | | Item Dimensions | 12.83 x 9.21 x 5.08 inches | | Item Weight | 1.97 Kilograms | | Manufacturer | Mould King | | Manufacturer Minimum Age (MONTHS) | 168.00 | | Manufacturer Part Number | WX10087-JYDXHH | | Material Type | Plastic | | Model Name | 10087 L4 Engine Building Kit | | Model Number | WX10087-JYDXHH | | Model Year | 2024 | | Number of Batteries | 1 Lithium Polymer batteries required. (included) | | Number of Pieces | 1787 | | Operation Mode | automatic | | Power Source | rechargeable_battery | | Set Name | 10087 L4 Engine Building Kit | | Size | 23.4 cm x 32.6 cm x 12.9 cm | | Supported Battery Types | Rechargeable | | Theme | Car | | Toy Building Block Type | Interlocking Toy Building Block | ## Images ![Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs) - Image 1](https://m.media-amazon.com/images/I/81a7UG-C7mL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A fun project but it takes patience *by D***E on October 16, 2025* I got this kit for my grandson who loves Legos and anything mechanical. Putting this together was a fun challenge and a great introduction to an engines functionality. The only reason for a 4 rating vs a 5 was due to the quality of the directions. The pictorial directions did not give clear step by step visuals so several times during the assembly he had to go back and rebuild a section after carefully studying the drawing. It was still a good fun and challenging project . ### ⭐⭐⭐⭐⭐ Outstanding Build. Highly recommend. *by K***Y on April 27, 2025* This was by far my favorite build so far! It builds well and holds its form. I found it thrilling everytime I completed a section and connected it to another. You can really see the motor come together. I will definitely purchase another build from Mould King. The directions weren't always helpful but I was able to figure it out on my own. I was missing one piece but it didn't stop me from continuing on. I honestly couldn't remember what piece was missing in the end so it must not have been to important. If you're thinking about purchasing one, I highly reccomend it. ### ⭐⭐⭐⭐⭐ A Blast With Caveats *by A***N on October 22, 2025* There are a lot of parts and I made some mistakes along the way, but I am thoroughly enjoying this project. There haven't been any missing parts so far, so I feel pretty confident that I'll finish without incident. I just started step 4. There are very few written instructions and some of the drawings of the connecting pins in the instructions aren't quite as clear as I would have preferred. I'm having a blast though :) ## Frequently Bought Together - Mould King 10087 L4 Engine Building Kit - Build Your Own L4 Engine Toy, 4-Cylinder Combustion Petrol Car Engine Replica STEM Mechanic Engineering Model Construction for Teens 14+ Years (1787 Pcs) - Mould King W16 Engine Building Blocks Set, Combustion Engine Model That Runs, Mini Engine Build Kit for Adults with Battery and Motor, Engineering Construction STEM Toy for Children Boys Girl(952 Pcs) --- ## 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.dk/products/645897792-mould-king-10087-l4-engine-building-kit-build-your-own](https://www.desertcart.dk/products/645897792-mould-king-10087-l4-engine-building-kit-build-your-own) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*