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$44.00
FREE delivery: Monday, 20 Dec
Fastest delivery: Tuesday, 14 Dec
Arrives before Christmas
In stock.
$$44.00 () Includes selected options. Includes initial monthly payment and selected options. Details
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$79.99
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Sold by: Myhobbies
Sold by: Myhobbies
(61 ratings)
94% positive over last 12 months
Only 2 left in stock.
Delivery Rates and Return policy

LEGO Technic Heavy-Duty Excavator 42121 Toy Set

4.7 out of 5 stars 604 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice for "toys for boys"

RRP: $69.99 Details

Recommended Retail Price (RRP)

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Price: $44.00
You Save: $25.99 (37%)
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Enhance your purchase

Brand LEGO
Model name Heavy-Duty Excavator
Model year 2021
Number of pieces 569
Educational objective Creative Thinking, Social Skills, Imagination Development, Problem Solving Skills, STEM

About this item

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  • 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
  • Roleplay 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
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Product Information

Technical Details

Additional Information

Buy it with

  • LEGO Technic Heavy-Duty Excavator 42121 Toy Set
  • +
  • LEGO 42123 Technic McLaren Senna GTR Racing Sports Car, Vehicle Construction Set
  • +
  • LEGO 42122 Technic Jeep Wrangler 4x4 Toy Car, Off Roader SUV Model Building Set
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Product description

Looking for a special gift for kids who love construction toy sets? This 2-in-1 LEGO Technic Heavy-Duty Excavator (42121) toy has plenty of features for hours of creative play. Boys and girls aged 8 and up will enjoy an immersive building challenge before exploring the digger toy's realistic features. See how an excavator works Digging, driving, rotating; there's so much to discover in this cool kids' excavator toy. Check out the shovel that moves up and down, plus the movable arm, running belts and rotating body. There’s also a detailed cabin with a driver’s seat and control panel. The set comes with extra LEGO brick ‘stones’ to dig and 4 cones. When it’s time for a new challenge, the model rebuilds into a tracked tractor with backhoe. A rewarding build for young LEGO fans The LEGO Technic universe offers advanced building toys for LEGO fans ready for their next challenge. With realistic mechanisms, these rewarding sets are a great way to introduce kids to the world of engineering.


From the manufacturer

42121

Build a mighty machine

This heavy-duty excavator building kit makes the perfect gift for any kid who loves construction toys and big machines.

Important information

Safety Information:

WARNING! Choking hazard. Small parts. Not for children under 3 years.


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Customer reviews

4.7 out of 5 stars
4.7 out of 5
604 global ratings

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Top reviews from Australia

TOP 500 REVIEWER
Reviewed in Australia on 14 November 2021
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Reviewed in Australia on 4 September 2021
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5.0 out of 5 stars LEGO Technic Heavy-Duty Excavator 42121
By Megan Brake on 4 September 2021
This was a gift for my husband for his collection and he absolutely loves it.
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One person found this helpful
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Reviewed in Australia on 3 November 2021
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TOP 1000 REVIEWER
Reviewed in Australia on 23 August 2021
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Reviewed in Australia on 21 July 2021
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Reviewed in Australia on 13 October 2021
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Reviewed in Australia on 17 April 2021
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Reviewed in Australia on 9 July 2021
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Top reviews from other countries

Laurence Gough
3.0 out of 5 stars Looks great, but don't expect great control at all.
Reviewed in the United Kingdom on 24 May 2021
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5 people found this helpful
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Percy Briscoe
5.0 out of 5 stars Good investment, money well spent. Lovely set.
Reviewed in the United Kingdom on 22 July 2021
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5.0 out of 5 stars Good investment, money well spent. Lovely set.
Reviewed in the United Kingdom on 22 July 2021
A lovely, satisfying set to build. Bags are numbered from 1-4. Instructions are easy to follow. Each numbered bag covers a section in the instructions. Building the 86 link drive chain(43 links per side.) requires concentration and discipline.
In conclusion: A worthy investment, value for money. All bricks/pieces fit well together.
End result satisfying.
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2 people found this helpful
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MR B TYRWHITT-DRAKE
4.0 out of 5 stars Good for teaching hand coordination
Reviewed in the United Kingdom on 18 July 2021
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One person found this helpful
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Nicolai Kolb
3.0 out of 5 stars Schöner Bagger, aber mit Schwächen
Reviewed in Germany on 21 March 2021
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15 people found this helpful
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Robert Clarke
5.0 out of 5 stars Great for young minds to explore mechanics
Reviewed in the United Kingdom on 4 September 2021
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