Retiring Soon Top Rated

LEGO® Technic™ Heavy-Duty Excavator

#42121
Rated 4.5 out of 5
Based on 2 reviews
AU $34.99 AU $69.99
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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 toys realistic features.


See how an excavator works
Digging, driving, rotating; theres 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.



  • 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 – its been that way since 1958.

  • LEGO® components are dropped, heated, crushed, twisted and analyzed to make sure they meet strict global safety standards.

We now ship to Australia and New Zealand.
  • All exact shipping costs are provided at the checkout; guides on delivery fees are displayed below.
  • Within Australia, your order can be sent in multiple parcels from different locations  > you will be provided a shipping tracking number for each parcel we send to you, and we will keep you updated throughout your order's journey.
  • Please note, not all of our stores are able to ship orders to you, some of our stores only offer click & collect at this time. 
  • Orders to New Zealand are now sent domestically within New Zealand. (From midday 15/12/22)
AUSTRALIAN DELIVERY

 

WA and SA shipping addresses only - we recommend ordering with EXPRESS shipping; significant delays are affecting Standard delivery in these states. Scroll down for more info.

Orders with a weight of under 3kg

Service Time* Cost 
Standard  2-7 Days $12 AUD 
Express 1-4 Days $15 AUD

 

Orders with a weight of 3kg or more

Service Time* Estimated Cost 
Standard  2-7 Days

Calculated at Checkout

Express 1-4 Days Calculated at Checkout

 

*Lead times are from dispatch date and are business days. Please note all orders are subject to a longer shipping timeframe across Christmas and New Year due to public holidays observed by shipping carriers.
 

We use Australia Post for our Australian orders. PLEASE NOTE – We ship from multiple locations, so you may receive multiple items separated into multiple orders and delivered separately under different tracking numbers. If this occurs, you will receive an email notification advising you of a partial order delivery. No additional shipping charges will be applied to orders that are sent in multiple parcels.  Once your order is dispatched, you can use your tracking number(s) to view updates on your order's progress.

 

 NEW ZEALAND DELIVERY

PLEASE NOTE: Due to the unfolding Auckland Flood Emergency, there will be a delay to all NZ Post parcels. All our Parcels are sent from our Auckland store and will not be collected by NZ Post until their services in Auckland are resumed. Contingency plans are being implemented to ensure items reach their destinations as safely and quickly as possible.


In addition, all parcels that are addressed to Auckland, Northland, Bay of Plenty, Waikato, Gisborne and Nelson regions on Auckland, Northland and Nelson and noted as 'In Transit' via the tracking link, are suspended and subject to delivery delays. We will continue to update this page (and customers via email) as we receive more information from NZ Post - you can also find the latest updates from NZ Post on full service impacts HERE

All orders are sent within New Zealand via a Standard NZ Post service and take 1-4 days for delivery.

North Island Regions

Up to 3kg Over 3kg - exact cost calculated at Checkout
$8 Between $10 & $20

 

South Island Regions

Up to 3kg Over 3kg - calculated at Checkout
$20  Between $25 & $61

 

 

**NEW** Australian Same Day Delivery (select Sydney and Melbourne metro postcodes)

Our Same Day Delivery service is available for Australian customers within the Sydney and Melbourne metro areas (select postcodes and subject to item availability) for orders placed before midday on Monday to Friday. If Same Day Delivery is available for your order, you’ll see it displayed as an option to select in 'Delivery' at the Checkout.

Orders will be delivered with contactless delivery between 2pm and 8pm Monday to Friday (excluding public holidays) via our partner Get it Fast. Orders placed after midday Monday to Friday, or on weekends and public holidays, will be delivered the next business day.

You’ll receive emails, SMS and a Get it Fast tracking link to track your order; there will be an update at each stage of delivery - from pick up, right the way through to delivery, which is when you will receive a photo of the safe place the parcel has been left.

The fee for this service is $20.

For more information, please click here.

 

NEED MORE HELP OR INFO?

 If you have any questions or concerns regarding your order please do not hesitate to contact our customer care via email online@bricksmegastore.com or phone 1300 832 843. Our customer care service is open Monday to Thursday from 8am 4:30pm  and Friday  8am – 4pm  AEST.  

 
average rating 4.5 out of 5
Based on 2 reviews
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    1 Review
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100% of reviewers would recommend this product to a friend
2 Reviews
Reviewed by John M.
Verified Reviewer
I recommend this product
Rated 4 out of 5
Review posted

Good

I like this set because you can build 2 things with it.

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Reviewed by George W.
Verified Buyer
I recommend this product
Bought For
Myself
Rated 5 out of 5
Review posted

Technic heavy duty excavator

Relaxing and fun to put together

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Fun Factor
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
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