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LEGO Technic Heavy Duty Excavator 2 in 1 Building Set 42121941/6925

Rating 4.861111111111111 out of 5
Read reviews (36)
LEGO Technic Heavy Duty Excavator 2 in 1 Building Set 42121
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  • £35.00

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About this product

Inspire kids who love construction vehicles, diggers, or excavator toys to build something new with the LEGO® Technic Heavy-Duty Excavator 2 in 1 model. Build the Excavator then rebuild it into a tracked tractor with backhoe.

LEGO® model number: 42121 - for ages 8 years and over.

Theme: LEGO Technic.

  • Features 2in1 toy digger set for construction toy fans, packed with realistic features and details.
  • The set lets kids see how construction vehicles really work with moving shovel and arm, plus running belts, just like on a real excavator.
  • There are 4 cones to manage the building site, plus extra LEGO pieces to use as bricks for scooping up during all possible excavation works.
  • With the authentic cabin and control panel to explore, it's easy for kids to imagine working on a construction site with the toy vehicles.
  • This cool digger toy for kids is an ideal birthday gift for 8+ years old boys and girls who love construction vehicles.
  • Looking for a special gift for kids who love construction vehicle toy sets? This 2 in 1 LEGO Technic Heavy-Duty Excavator 42121 toy rebuilds into a tracked Tractor with backhoe and has plenty of features for hours of creative play. 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.
  • Includes 569 pieces.
  • Box size H26.2, W28.2, D7.6cm.
  • For ages 8 years and over.
  • EAN: 5702016890976.


  • Not suitable for children under 3 years old.
  • Only for domestic use.

The small print

*Prices correct as displayed but are subject to change.

The customer and brand answers you’ll see above are submitted independently. As we don’t review these answers, we can’t take responsibility for anything they may say. The responses from Argos colleagues are accurate at the time of publishing. For the latest info, you should check the product page.