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Notes on prices & affiliate links
Displayed prices may differ from actual offers. We update prices regularly, but offers on the linked pages may change quickly. Please note that we earn a commission on some qualified purchases made through partner links (e.g., from Amazon, eBay, or other shops). This only applies to links used within affiliate programs. There are no additional costs for you, and we also provide non-affiliate links to ensure a comprehensive overview of available offers.
Price history · Price development
Has Heavy-Duty Excavator ever been cheaper?
- Current
- 190,10 €
- New, best shop
- 30-day low
- 190,10 €
- on 13. Feb. 2026 · galaxus-de
- 90-day avg.
- 190,10 €
- Daily average
- All-time low
- 134,68 €
- on 11. Juli 2025 · galaxus-de
Loading chart …
| Date | New | Shop |
|---|---|---|
| 13. Feb. 2026 | 190,10 € | galaxus-de |
| 09. Feb. 2026 | 193,62 € | galaxus-de |
| 26. Jan. 2026 | 195,56 € | galaxus-de |
| 11. Juli 2025 | 134,68 € | galaxus-de |
Details
Set details
At a glance
- Brand
- Lego
- Partcount
- 569
- Build Duration
- 1–2 h
- Age
- 8+
- Release / EOL
- 2021 – 2022
- RRP
- 39,99 €
Building instructionsPDF from the manufacturer
Technical data9 entries
Product
- Name
- Heavy-Duty Excavator
Dimensions
- Product weight
- 0,4 kg
- Packaging width
- 26,2 cm
- Packaging height
- 7,6 cm
- Packaging length
- 28,2 cm
- Packaging weight
- 0,6 kg
Identification
- MFR
- 42121-1
- EAN
- 5702016890976
- SKU
- 42121
DescriptionManufacturer text
Inspire kids who love construction vehicles or excavator toys to build something new with the LEGO® Technic™ Heavy-Duty Excavator 2-in-1 model.
Take on the toughest construction site challenges with this rugged LEGO® Technic™ Heavy-Duty Excavator. Check out the driver’s cabin, then rotate the body and move the arm just like on a real excavator. Raise and lower the shovel to transport the stones and use the 4 cones to mark out your route. Ready for an exciting new challenge? Rebuild your model into a cool tracked tractor with backhoe.
Whether it’s a birthday, Christmas, or ‘just because’ gift, young construction fans will love building and exploring this 2-in-1 LEGO® Technic™ Heavy-Duty Excavator (42121) toy set.
Packed with realistic features, this digger toy set lets kids see how construction vehicles really work. Check out the moving shovel and arm, plus running belts, just like on a real excavator.
When kids are ready for a new challenge, the 2-in-1 toy model rebuilds into a tracked tractor with backhoe.
This cool excavator toy for kids is ideal for boys and girls aged 8 and up who love construction vehicles.
With the authentic cabin and control panel to explore, it’s easy for kids to imagine life on a construction site with this cool excavator toy.
Role-play is easy with this cool set. There are 4 cones to manage the building site, plus extra LEGO® pieces to use as bricks for scooping up with the digger truck toy.
This kids’ excavator toy model measures over 9 in. (23 cm) high, with arm up, 14.5 in. (37 cm) long, with arm fully extended, and 4 in. (11 cm) wide.
The LEGO® Technic™ universe opens up the world of engineering for young LEGO fans ready for their next building challenge.
LEGO® components meet stringent industry standards to ensure they are consistent, compatible and connect reliably every time – it’s been that way since 1958.
LEGO® components are dropped, heated, crushed, twisted and analyzed to make sure they meet strict global safety standards.
Gallery
Product images (15)
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FAQ
Frequently Asked Questions
Was Heavy-Duty Excavator ever cheaper? Price history & all-time low
VERObricks tracks the price history of Lego® Heavy-Duty Excavator across all shops. The historical low for new is 134,68 €. The highest observed new price was 195,56 € — a range of 60,88 €. The price trend is currently downward — the price has fallen recently. With the VERObricks price alert you'll be notified instantly when the price reaches your target.
What is Lego® Heavy-Duty Excavator? Contents, parts & details
Lego® Heavy-Duty Excavator is a set by Lego from the "LEGO® Technic" theme (Set No. 42121, EAN: 5702016890976). According to the VERObricks database, the set includes 569 parts, Recommended age 8+. Manufacturer description: "Inspire kids who love construction vehicles or excavator toys to build something new with the LEGO® Technic™ Heavy-Duty Excavator 2-in-1 model." On VERObricks you can find the set in these categories: LEGO® Technic, Technic, Construction Machines, Vehicles, Utility vehicles.
When was Lego® Heavy-Duty Excavator released and how long will it stay available?
Lego® Heavy-Duty Excavator was released in March 2021. The set retired at the end of 2022 (EOL, end of life). New copies come from remaining stock only; for used ones, use the eBay search on this page. The official building instructions are available as 3 PDF files directly from the manufacturer, linked in the set details section.