LEGO 42121 Building Instructions - Heavy Duty Excavator

Technic • 2021

Where can I find LEGO 42121 Heavy Duty Excavator instructions?

LEGO 42121 Heavy Duty Excavator is a 569-piece LEGO Technic set released on 1 March 2021. This page provides 2 step-by-step building instruction videos for the set. The page also links to LEGO's official building instructions for this set.

Official LEGO building instructions

Open the official LEGO instruction page to select and download the available PDF manual books.

VIEW OFFICIAL LEGO MANUALS

Instruction videos

LEGO 42121 set details

Set number	42121
Theme	Technic
Year	2021
Pieces	569
Model dimensions	9 in. (23 cm) high, with arm up,14.5 in. (37 cm) long, with arm fully extended, and 4 in. (11 cm) wide
Release date	1 March 2021
UK MSRP	£34.99
US MSRP	$39.99
EU MSRP	€39.99

Set overview

LEGO 42121 Heavy Duty Excavator is a 569-piece LEGO Technic set released in 2021.

What does this instruction guide include?

This page groups 2 instruction videos for this set in one place.

Continue building this set