Item #:
46186740
LEGO Technic 42121 Heavy Duty Excavator
85% of respondents would recommend this to a friend
Item #:
46186740
TTD 1067
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from JP
In stock
Imported from Japan store
QTY:
Order now and get it around Wednesday, October 07
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
This hydraulic excavator is the perfect gift for any child who loves building toys and large machinery.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Realistic Functionality
The Lego Technic Heavy Duty Excavator features movable parts, including a working boom, arm, and bucket, providing an authentic building and play experience that mimics real-life excavation tasks.
Durable Construction
Crafted from high-quality plastic bricks, this set ensures long-lasting durability, making it suitable for both building enthusiasts and children, while withstanding vigorous play and repeated assembly.
STEM Learning
Encourages problem-solving and engineering skills through interactive play, this excavator set introduces children to the principles of mechanics and construction, providing educational value alongside fun.
Product Details
| Brand Name | LEGO |
| Sub Brand | レゴ(lego)テクニック |
| Model Number | 42121 |
| Age Range Description | Kid |
| Global Trade Identification Number | 05702016890976 |
| Target Audience | Boys |
| Included Components | false |
| Item Type Name | toys |
| Manufacturer | レゴ(LEGO) |
| Model Year | 2021 |
| Manufacturer Part Number | 42121 |
| Item Dimensions | 28.2 x 26.2 x 7.6 cm |
| Item Weight | 640 Grams |
| Manufacturer recommended age | 8 years and up |
| Theme | Christmas |
| Number of Pieces | 569 |
| Size | 高さ23cm ｘ 長さ37cm（アームを伸ばした状態） ｘ 幅11cm |
| Educational Objective | Creativity, Creativity, Spatial Recognition, Focus and Dexterity |
| Additional Features | Excavation |
| Toy Building Block Type | Interlocking Toy Building Block |
| Is Assembly Required | Yes |
| Number of Batteries | 2 AA batteries required. |
| Material Type | Plastic |
| Brand | LEGO |
| Manufacturer Minimum Age (MONTHS) | 96.0 |
| Material | Plastic |
| Special Feature | Excavation |
| Item dimensions L x W x H | 28.2 x 26.2 x 7.6 cm |
Who Should Buy?
-
Construction Enthusiasts
Ideal for those who enjoy building realistic models and exploring engineering concepts through a detailed Lego set.
-
Gift Givers
Perfect as a gift for birthdays or holidays, it’s appealing for children and adults who love creative play.
-
STEM Learners
Great for students interested in STEM, it enhances problem-solving skills and fosters an understanding of mechanical functions.
-
Very Young Kids
Not suitable for children under 10 due to small parts and the complexity of assembly required for this set.
Product Description
About This Item
Introducing the Lego Technique Heavy Duty Excavator 42121: the ultimate construction toy for aspiring builders and Lego enthusiasts. With its impressive size and intricate details, this Lego Technique Excavator model is designed to bring your construction projects to life. The Heavy Duty Excavator set features a realistic design, complete with an extendable arm, working boom, and a rotating cabin.
Whether you're digging trenches, lifting heavy objects, or clearing debris, this Lego Technique Excavator is up to the task. Its sturdy construction and durable materials ensure that it can handle even the toughest jobs. Not only is the Lego Technique Heavy Duty Excavator a must-have for builders, but it also makes for a great collector's item. Display it proudly on your shelf, or use it as the centerpiece of your Lego city. This set includes clear building instructions, making it easy for both beginners and experienced Lego builders to assemble.
Compatible with other Lego sets, you can also combine it with additional sets to create even more exciting projects. Unlock your imagination and let your creativity flourish with the Lego Technique Heavy Duty Excavator. Order yours today and experience the thrill of construction like never before.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What age group is this excavator suitable for?
Answer: The excavator is ideal for children aged 8 and up. -
Question:
Can the excavator model be converted into another vehicle?
Answer: Yes, it can be converted into a caterpillar tractor with rear excavator. -
Question:
What are some of the authentic features included?
Answer: It features a rotating hull, moving arm, working shovel, and authentic chains.
Building Sets 42121 Editorial Review
The Lego Technic Heavy Duty Excavator has received mixed reviews from customers. Some customers praised the set for its intricate design, fun build process, and cool functionality. They appreciated the attention to detail, such as the articulated arm movements and realistic excavator features. Additionally, some users mentioned that it was an engaging build, suitable for both children and adults. However, there were also some criticisms of the set. Some customers felt that the age recommendation might be a bit low, suggesting that the set may be more suitable for older children. Furthermore, there were comments about certain parts being a bit fragile or tight, specifically mentioning the knob mechanism and treads. Additionally, there were concerns raised about the overall lack of creativity in modern Lego sets, with some customers expressing a desire for more open-ended building options. Overall, the Lego Technic Heavy Duty Excavator seems to offer a detailed and engaging building experience, with some minor drawbacks related to age recommendations and fragility of certain parts. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Intricate design with cool functionality
- Engaging build process enjoyable for both children and adults
- Realistic excavator features add to the play experience
Cons
- Age recommendation may be too low
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TTD 1067
Order now and get it around Wednesday, October 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Perfect gift for children who love construction toys.
- Features authentic details for realistic play.
- 360° rotating hull and moving arm for dynamic action.
- 2-in-1 model easily converts to caterpillar tractor.
- Includes multiple realistic features, such as working shovel.
- Ideal for kids aged 8 and up, enhancing their imaginative play.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.