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Set 71740 Jay's Electro Mech
Ninjago

Jay's Electro Mech

Jay's Electro Mech (71740) is a Ninjago set built around the lightning ninja Jay and his electrically themed battle mech. With 106 pieces, 59 unique elements and two minifigures, it packs a compact mech and an opponent into a small play set. Dark blue, light bluish grey, pearl gold and dark bluish grey shape the mech's look.

Set number
71740
Year
2021
Pieces
106
Minifigures
2
Theme
Ninjago
Different parts
59
What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 59

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Spare parts (3)

These extra parts come with the set in case one gets lost.

Minifigures 2

Alternative models

Fan models by Rebrickable users that you can build (mostly) from this set’s parts. Instructions are available from the designers.

View the idea at Rebrickable ↗

What can I build with it?

Description

Jay and his mech

At the centre of the set is a poseable mech in classic Ninjago style, built for Jay, the ninja known throughout the series for lightning and electric attacks. The mech has moving arms and legs, so battle poses and small action scenes can be recreated after building. With 106 pieces, the model stays compact enough for quick building and rebuilding, while still including enough moving parts to make it genuinely playable rather than just a display piece. Because the model relies on a few well-chosen movements rather than many fiddly joints, it stays sturdy through repeated play and repositioning.

Two minifigures, one duel

The set includes two minifigures: Jay himself and an opponent, so a small duel can be set up straight after building. This combination of mech and rival is typical of many compact Ninjago sets and keeps the model interesting for spontaneous play, without needing to combine it with other sets first. Anyone familiar with the Ninjago series will recognise Jay's lightning element reflected directly in the mech's equipment and colour scheme. That setup also makes it easy to invent your own short battle scenes straight away, without needing to combine several Ninjago sets first.

59 elements in blue, grey and gold

With just 106 pieces, 59 different elements deliver a fairly detailed build in which many parts appear only once or twice. The colour palette of dark blue, light bluish grey, dark bluish grey and pearl gold gives the mech a sturdy, slightly battle-worn look that suits Jay's armour well. The parts list on this page shows all 59 elements with their colour and quantity, useful if a piece is missing or you're after specific shapes for your own custom builds. That mix of materials is typical of Ninjago mechs and keeps the model visually interesting up close, not just from a distance.

For Ninjago fans and casual builders

With a modest piece count and clear building steps, Jay's Electro Mech also suits children with limited building experience who already know a few Ninjago characters. At the same time, the set combines well with other Ninjago sets, for instance to bring together several ninjas and their vehicles or mechs in one scene. Over time, a small collection can grow around compact sets like this one. Collectors who already own several Ninjago sets will find the compact size especially useful, since the mech slots easily into a larger scene.

FAQ

Which minifigures come with Jay's Electro Mech?
The set includes two minifigures: the ninja Jay and an opponent for a direct duel. Both match the electric theme of the set in colour.
Is the mech poseable?
Yes, the arms and legs move, allowing battle poses and small scenes to be recreated. The set is built for play after construction, not just for display.
How many different pieces does the set contain?
The 106 pieces are made up of 59 unique elements in dark blue, light bluish grey, dark bluish grey and pearl gold. The full breakdown is shown in the parts list on this page.

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