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LEGO TECHNIC: Heavy-Duty Excavator (42121)

4.9315 product ratings
Speed Stars Store (1762)
100% positive feedback
Price:
US $109.99
ApproximatelyAU $169.89
+ $27.50 postage
Estimated delivery Fri, 15 Aug - Wed, 1 Oct
Returns:
No returns, but backed by eBay Money Back Guarantee.
Condition:
New
Item will be sold as is.

About this product

Product Information

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.

Product Identifiers

BrandLEGO
MPN42121
UPC0673419336611
eBay Product ID (ePID)13045517868

Product Key Features

LEGO Set NameHeavy-Duty Excavator
LEGO Set Number42121
Release Year2021
LEGO ThemeTECHNIC
Age Level8+

Dimensions

Item Height11.02 in
Item Weight5.21 lb
Item Length11.77 in
Item Width9.65 in

Additional Product Features

Launch Date03/01/2021
Country/Region of ManufactureMexico

All listings for this product

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Any condition
New
Pre-owned
LEGO TECHNIC: Heavy-Duty Excavator (42121) Complete No Box or manual
item 1 LEGO TECHNIC: Heavy-Duty Excavator (42121) Complete No Box or manual
AU $59.38
+AU $77.05 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121) Read
item 2 LEGO TECHNIC: Heavy-Duty Excavator (42121) Read
AU $67.96
+AU $84.87 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121) 100% Complete w/ Manual & Box
item 3 LEGO TECHNIC: Heavy-Duty Excavator (42121) 100% Complete w/ Manual & Box
AU $101.93
+AU $83.07 postage
Retired LEGO TECHNIC: Heavy-Duty Excavator (42121) - Complete and Put Together!
item 4 Retired LEGO TECHNIC: Heavy-Duty Excavator (42121) - Complete and Put Together!
AU $127.43
+AU $79.11 postage
LEGO TECHNIC 42121 Heavy-Duty Excavator (1 Bag built already) 100% Complete
item 5 LEGO TECHNIC 42121 Heavy-Duty Excavator (1 Bag built already) 100% Complete
AU $144.42
+AU $62.66 postage
LEGO 42121 TECHNIC Heavy-Duty Excavator
item 6 LEGO 42121 TECHNIC Heavy-Duty Excavator
AU $169.89
+AU $42.48 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121) 100% COMPLETE W/INSTRUCTIONS
item 7 LEGO TECHNIC: Heavy-Duty Excavator (42121) 100% COMPLETE W/INSTRUCTIONS
AU $127.43
+AU $100.33 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121) Used Retired
item 8 LEGO TECHNIC: Heavy-Duty Excavator (42121) Used Retired
AU $152.83
+AU $84.09 postage
LEGO TECHNIC 42121 Heavy-Duty Excavator- 569 pcs- New Sealed ( box damage)
item 9 LEGO TECHNIC 42121 Heavy-Duty Excavator- 569 pcs- New Sealed ( box damage)
AU $178.39
+AU $63.67 postage
LEGO® Technic 42121-1 Heavy Duty Excavator
item 10 LEGO® Technic 42121-1 Heavy Duty Excavator
AU $169.89
+AU $77.55 postage
LEGO TECHNIC 42121 Heavy-Duty Excavator- 569 pcs- New Sealed & Retired
item 11 LEGO TECHNIC 42121 Heavy-Duty Excavator- 569 pcs- New Sealed & Retired
AU $183.50
+AU $77.41 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121)
item 12 LEGO TECHNIC: Heavy-Duty Excavator (42121)
AU $181.80
+AU $85.23 postage
LEGO 42121 Heavy Duty Excavator RETIRED FREE SHIPPING DAMAGED BOX
Last one
item 13 LEGO 42121 Heavy Duty Excavator RETIRED FREE SHIPPING DAMAGED BOX
AU $201.28
+AU $71.84 postage
LEGO TECHNIC HEAVY-DUTY EXCAVATOR 569 PCS 42121 NEW IN BOX 2021 RETIRED
item 14 LEGO TECHNIC HEAVY-DUTY EXCAVATOR 569 PCS 42121 NEW IN BOX 2021 RETIRED
AU $161.24
+AU $117.31 postage
LEGO Technic Heavy Duty Excavator 42121
item 15 LEGO Technic Heavy Duty Excavator 42121
AU $237.87
+AU $62.20 postage
LEGO Technic 42121 Heavy-Duty Excavator 8+ 569pcs New Sealed Heavy Duty 2 In 1
item 16 LEGO Technic 42121 Heavy-Duty Excavator 8+ 569pcs New Sealed Heavy Duty 2 In 1
AU $228.53
+AU $72.74 postage
LEGO TECHNIC 42121 Heavy Duty Excavator NEW/FACTORY SEALED & RETIRED
item 17 LEGO TECHNIC 42121 Heavy Duty Excavator NEW/FACTORY SEALED & RETIRED
AU $212.39
+AU $91.77 postage
Lego Technic 42121 - Heavy-Duty Excavator NEW - FREE SHIPPING
item 18 Lego Technic 42121 - Heavy-Duty Excavator NEW - FREE SHIPPING
AU $306.60
Free postage
NIB - RETIRED - LEGO TECHNIC: Heavy-Duty Excavator (42121) NEW & SEALED
item 19 NIB - RETIRED - LEGO TECHNIC: Heavy-Duty Excavator (42121) NEW & SEALED
AU $220.87
+AU $85.80 postage
LEGO Technic 42121 Heavy-Duty Excavator – 265 Pieces – New & Sealed – Ships from
item 20 LEGO Technic 42121 Heavy-Duty Excavator – 265 Pieces – New & Sealed – Ships from
AU $321.47
+AU $6.80 postage
LEGO Technic 42121 Fork Crane
item 21 LEGO Technic 42121 Fork Crane
AU $159.46
+AU $169.91 postage
LEGO 42121 TECHNIC: Heavy-Duty Excavator Block toy 8+ New
item 22 LEGO 42121 TECHNIC: Heavy-Duty Excavator Block toy 8+ New
AU $321.45
+AU $11.89 postage
LEGO Technic 42121 excavator
item 23 LEGO Technic 42121 excavator
AU $182.98
+AU $169.91 postage
LEGO Technic Heavy Duty Excavator 42121
item 24 LEGO Technic Heavy Duty Excavator 42121
AU $358.05
+AU $10.62 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121) NEW & SEALED
item 25 LEGO TECHNIC: Heavy-Duty Excavator (42121) NEW & SEALED
AU $285.45
+AU $89.08 postage
LEGO TECHNIC: Heavy-Duty Excavator (42121)
item 26 LEGO TECHNIC: Heavy-Duty Excavator (42121)
AU $339.82
+AU $81.46 postage
Lego 42121 Technic Heavy-Duty Excavator Building Kit 569 PCS
Almost gone
item 27 Lego 42121 Technic Heavy-Duty Excavator Building Kit 569 PCS
AU $364.78
+AU $66.33 postage
listings for this product

Ratings and reviews

Learn more
4.9
15 product ratings
  • 14 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Durable

Entertaining

Most relevant reviews

See all 15 reviews
  • by mlaidler-2012
    28 Oct, 2021

    Lego technic excavator

    Outstanding product easy to build

    Verified purchase: YesCondition: New

  • by jagrkn0t_94
    30 Jul, 2025

    These technic lego sets are kool. Never ...

    These technic lego sets are kool. Never get tired of building these kits. Thanks

    Verified purchase: YesCondition: Pre-owned

  • by fkford1
    12 Feb, 2022

    Great LEGO

    Great Lego Excavator added to my collection.

    Verified purchase: YesCondition: Pre-owned

  • by wbgg
    20 Jul, 2021

    fun build

    great fun to build with my grandson , wish it were a little bigger but he still has lots of fun playing with it.

    Verified purchase: YesCondition: New

  • by micsnoop
    29 Dec, 2022

    Lego excavator

    I can't wait to build this. Looks like a fun kit to work on when the weather is nasty.

    Verified purchase: YesCondition: New

  • by steeleaglex13
    29 May, 2024

    It makes a nice addition to my collection

    It makes a nice addition to my collection

    Verified purchase: YesCondition: Pre-owned

  • by jeff-636
    24 Oct, 2024

    Lego is good ideas waiting to be built

    I like the looks of it. Be fun to build.

    Verified purchase: YesCondition: New

  • by dwg728
    10 Feb, 2023

    Nice Toy

    very nice, well designed.

    Verified purchase: YesCondition: New

  • by 14greenie
    03 Nov, 2023

    Entertaining

    It’s a fun build!

    Verified purchase: YesCondition: New

  • by d35dozerman
    29 Dec, 2021

    Nice piece

    Real nice lego for my grandson

    Verified purchase: YesCondition: New

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