LEGO 71842 Building Instructions - Rontu the Master Dragon

Ninjago • 2025

Where can I find LEGO 71842 Rontu the Master Dragon instructions?

LEGO 71842 Rontu the Master Dragon is a 381-piece LEGO Ninjago set released on 1 June 2025. This page provides a step-by-step building instruction video. 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 71842 set details

Set number	71842
Theme	Ninjago
Subtheme	Dragons Rising Season 3
Year	2025
Pieces	381
Release date	1 June 2025
Minifigures	4
UK MSRP	£39.99
US MSRP	$49.99
EU MSRP	€44.99

Set overview

LEGO 71842 Rontu the Master Dragon is a 381-piece LEGO Ninjago set released in 2025 from the Dragons Rising Season 3 range with 4 minifigures.

This page includes one step-by-step instruction video for building Rontu the Master Dragon.

Notable features

posable sections
a brick-built animal model
included minifigure content