---
product_id: 160185072
title: "42100 Technic Control Liebherr R 9800 RC Excavator, Remote App Controlled Advanced Construction Set, with Interactive Motors"
brand: "lego"
price: "¥453784"
currency: JPY
in_stock: false
reviews_count: 8
category: "Lego"
url: https://www.desertcart.jp/products/160185072-42100-technic-control-liebherr-r-9800-rc-excavator-remote-app
store_origin: JP
region: Japan
---

# App-controlled with 4 control modes 7 powerful motors & Bluetooth hubs 4108 precision pieces 42100 Technic Control Liebherr R 9800 RC Excavator, Remote App Controlled Advanced Construction Set, with Interactive Motors

**Brand:** lego
**Price:** ¥453784
**Availability:** ❌ Out of Stock

## Summary

> 🚜 Build. Control. Conquer. Own the ultimate engineering challenge!

## Quick Answers

- **What is this?** 42100 Technic Control Liebherr R 9800 RC Excavator, Remote App Controlled Advanced Construction Set, with Interactive Motors by lego
- **How much does it cost?** ¥453784 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/160185072-42100-technic-control-liebherr-r-9800-rc-excavator-remote-app)

## Best For

- lego enthusiasts

## Why This Product

- Trusted lego brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision in Motion:** 7 interactive motors and dual Bluetooth Smart Hubs ensure lifelike, smooth excavator operations.
- • **Command with a Swipe:** Control every move via the intuitive LEGO TECHNIC CONTROL+ app with 4 dynamic control screens.
- • **Authentic & Immersive:** True-to-life Liebherr R 9800 replica with realistic colors, stickers, and multi-function control for ultimate immersion.
- • **Master the Art of Engineering:** 4108 intricately designed pieces deliver a challenging build for seasoned creators.
- • **Unlock Achievements & Customize:** Record custom sequences and complete challenges to earn badges, elevating your builder status.

## Overview

The LEGO 42100 Technic Control Liebherr R 9800 Excavator is a premium, app-controlled construction set featuring 4108 pieces, 7 interactive motors, and Bluetooth Smart Hubs. Designed for advanced builders, it offers multi-function control via the LEGO TECHNIC CONTROL+ app, allowing precise, lifelike excavator movements and custom command sequences. This authentic replica combines engineering complexity with immersive play, perfect for professionals and enthusiasts seeking a sophisticated building experience.

## Description

LEGO 42100 Technic Control Liebherr R 9800 RC Excavator, Remote App Controlled Advanced Construction Set, with Interactive Motors : desertcart.co.uk: Toys & Games

Review: Great lego set - Great lego set for the price. I have been a fan of lego since my childhood days. I stopped buying lego in the middle as I got busy and didn't have time to work on a set. I recently came back to lego after a long hiatus and decided to get this set as I wanted something complicated and challenging. I absolutely adored this set it was a nice challenge but not too overbearing the motors and hubs worked great exactly 1000 steps. And it can be controlled via the app. The set was a bit expensive than I liked but it is well worth the money. My only gripe is that the digger bucket was not like the original liebherr so it couldn't dig stuff but still a good set all round I recommend this set to seasoned and veteran lego builders who want a challenge.
Review: Very good lookalike - Great model

## Features

- Warning:Do not aim at eyes or face.
- Warning:Not suitable for children under 10 months.
- Warning:Not suitable for children under 36 months
- Warning:To be used under the direct supervision of an adult
- Warning:Toy inside. Adult supervision recommended
- This excavator model features the LEGO TECHNIC CONTROL+ app for a more immersive and realistic play experience and hours of fun.
- The app-controlled LEGO Technic Liebherr R 9800 Excavator is operated via a smart device with 4 alternative control screens. Go to LEGO.com/devicecheck for a list of compatible smart devices.
- Multi-function control: Drive forward, reverse, steer, rotate the superstructure, extend, raise and lower the boom, open and tilt the bucket and get model feedback, such as boom and superstructure position, power usage and drive distance.
- One-touch control: Select an on-screen drag pattern and see the excavator respond to your command.
- Custom-built movements: Use pre-set commands or record the model’s actions to create complex sequences of movements.
- Challenges & achievements: Complete challenges to unlock reward badges.
- Replica of the Liebherr R 9800 Excavator with an array of true-to-life features and functions, finished with an authentic color scheme and cool sticker detailing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NDBGW4G |
| Age Range Description | Adult |
| Best Sellers Rank | 267,137 in Toys & Games ( See Top 100 in Toys & Games ) 7,095 in Toy Building Sets |
| Brand Name | LEGO |
| Colour | Multicolor |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.8 out of 5 stars 3,705 Reviews |
| Educational Objective | Construction Skills |
| Global Trade Identification Number | 05702016369915 |
| Included Components | LEGO Technic Liebherr R 9800 Excavator Set 42100 |
| Item Dimensions | 17 x 58.2 x 48 centimetres |
| Item Type Name | Technic Control+ Liebherr R 9800 Excavator App Controlled Enhanced Construction Set with Interactive Motors and Bluetooth Connectivity |
| Item Weight | 6451 Grams |
| Item height | 48 centimetres |
| Manufacturer | LEGO |
| Manufacturer Warranty Description | If your new LEGO set is missing parts or has faulty parts, LEGO System A/S will replace these parts free of charge through our Bricks & Pieces service. We strive to make this free replacement available in all countries, but reserve the right to change the availability of the Bricks & Pieces service at any time without prior notice. |
| Material Type | Plastic |
| Maximum Age Recommendation | 1188 |
| Minimum Age Recommendation | 144 |
| Model Name | LEGO Technic Liebherr R 9800 Excavator Set 42100 |
| Model Number | 42100 |
| Model Year | 2019 |
| Number of Pieces | 4108 |
| Size | Large |
| Special Features | Non Toxic |
| Sub Brand | Liebherr |
| Theme | Vehicle |
| Unit Count | 4108.0 count |

## Product Details

- **Brand:** LEGO
- **Colour:** Multicolor
- **Educational objective:** Construction Skills
- **Manufacturer Minimum Age (MONTHS):** 144
- **Material:** Plastic
- **Model name:** LEGO Technic Liebherr R 9800 Excavator Set 42100
- **Number of pieces:** 4108
- **Special feature:** Non Toxic
- **Sub brand:** Liebherr
- **Theme:** Vehicle

## Images

![42100 Technic Control Liebherr R 9800 RC Excavator, Remote App Controlled Advanced Construction Set, with Interactive Motors - Image 1](https://m.media-amazon.com/images/I/81gN3xgLKfL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: why does it have so many fire extinguishers**
A: Industrial extinguisher systems consist of many tanks that will flood a compartment with a gas in the event of a fire. Its not lots of small hand operated extinguishers.

**Q: Is the label sticked directly on this box, or does it come in external packaging?**
A: Mine came in two additionsl brown cardboard boxes around the coloured one. The first was a lego one with bubble wrap inside the second was an amazon with the screwed up brown paper. Well packed and no damage to the main box.

**Q: Why are the batteries not working they were working**
A: They ve either gone flat or you have to connect everything up.

**Q: Why is the battery not working they were working**
A: I assume you mean the batteries on the two control + units in the model? As with all batteries check two things. Are they inserted the right way round? It is very easy to insert one of the 12 batteries the wrong way round. Simple to put right. The other is - are the batteries dead? Best take the batteries out and test them in another product which is working. Also best not to store batteries in the model for long periods. If you are displaying the model, take the batteries out and only put them back when you want to play with the model. If you have checked everything, and tried with new batteries and the control + units are still not working, contact Lego helpline. Hope this helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great lego set
*by T***E on 1 September 2021*

Great lego set for the price. I have been a fan of lego since my childhood days. I stopped buying lego in the middle as I got busy and didn't have time to work on a set. I recently came back to lego after a long hiatus and decided to get this set as I wanted something complicated and challenging. I absolutely adored this set it was a nice challenge but not too overbearing the motors and hubs worked great exactly 1000 steps. And it can be controlled via the app. The set was a bit expensive than I liked but it is well worth the money. My only gripe is that the digger bucket was not like the original liebherr so it couldn't dig stuff but still a good set all round I recommend this set to seasoned and veteran lego builders who want a challenge.

### ⭐⭐⭐⭐⭐ Very good lookalike
*by B***T on 23 August 2025*

Great model

### ⭐⭐⭐⭐⭐ Top notch build quality and app
*by P***E on 12 April 2020*

Built it for when the grandkids can visit again after C19. Also, I was getting bored and wanted a mini project, so this was my 71st birthday present. I thoroughly enjoyed building the kit. The instructions are very clear and you can't go wrong. Even so, I reckon it took probably 25-30 hours to complete. The programming aspect built into the Control+ app is superb. The round 'stone bricks' supplied with the kit are next to useless. However, the excavator works very well in picking up gravel in my garden. All in all, I'd say the kit is worth every penny of the necessary high price. I'm looking forward to lego bringing out similar large technic RC kits such as this one.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*