---
product_id: 645897792
title: "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: "€ 123.10"
currency: EUR
in_stock: true
reviews_count: 13
category: "Mould King"
url: https://www.desertcart.fr/products/645897792-10087-l4-engine-building-kit-build-your-own-l4-engine
store_origin: FR
region: France
---

# Battery-powered animation STEM skill builder 1787 precision pieces 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:** € 123.10
**Availability:** ✅ In Stock

## Summary

> ⚙️ Ignite your inner engineer — build, learn, and impress with every turn!

## Quick Answers

- **What is this?** 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?** € 123.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/645897792-10087-l4-engine-building-kit-build-your-own-l4-engine)

## 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

- • **Clear, Organized Packaging:** Individually packed components and easy-to-follow instructions streamline your build.
- • **Precision Engineering Mastery:** Assemble 1787 detailed parts for an authentic 4-cylinder engine replica.
- • **STEM-Driven Creative Challenge:** Boost critical thinking and motor skills with a hands-on mechanical engineering experience.
- • **Dynamic Battery-Powered Animation:** Watch your engine come to life with realistic moving pistons powered by 6 AAA batteries.
- • **Perfect Gift for Future Innovators:** Ideal for teens 14+, inspiring curiosity and pride in mechanical craftsmanship.

## Overview

The Mould King 10087 L4 Engine Building Kit offers 1787 pieces to construct a realistic 4-cylinder combustion engine model. Designed for teens 14+, this battery-powered STEM kit animates moving pistons, providing an immersive mechanical learning experience. With organized packaging and detailed instructions, it’s a perfect gift to develop critical thinking, motor skills, and engineering passion.

## Description

desertcart.com: 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) : Toys & Games

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: Awesome Build - just started building it, after i did the v-8 which was also a very good build. 1/2 way done so far and no problems, and no pieces missing, wish they would have came out with these type of builds awhile back, building cars, ships, etc, is fun but these kits sort of changes things up, or just something different to build. i hope they keep coming out with these kits. the bricks/stones are very nice the clutch/or snap are very nice. A+ to MouldKing will buy again

## 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 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #113,985 in Toys & Games ( See Top 100 in Toys & Games ) #1,460 in Educational Science Kits |
| Customer Reviews | 4.2 4.2 out of 5 stars (439) |
| Item Weight | 4.33 pounds |
| Item model number | WX10087-JYDXHH |
| Manufacturer | Mould King |
| Manufacturer recommended age | 14 years and up |
| Product Dimensions | 12.83 x 9.21 x 5.08 inches |

## Images

![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)

## 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 .

### ⭐⭐⭐⭐⭐ Awesome Build
*by A***R on August 8, 2024*

just started building it, after i did the v-8 which was also a very good build. 1/2 way done so far and no problems, and no pieces missing, wish they would have came out with these type of builds awhile back, building cars, ships, etc, is fun but these kits sort of changes things up, or just something different to build. i hope they keep coming out with these kits. the bricks/stones are very nice the clutch/or snap are very nice. A+ to MouldKing will buy again

### ⭐⭐⭐⭐ Cool little project
*by A***S on February 12, 2025*

Would recommend that you glue some pieces together because when it torques it comes apart and one part didn't fit well so had to skip it. But it works good and runs

## Frequently Bought Together

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-14*