LEGO Set 21104 NASA Mars Science Laboratory Curiosity Rover

Specifications

Set number	21104
Release year	2014
Piece count	295
Minifigures	0
Theme	LEGO Ideas and CUUSOO
Building instructions	Download the instructions on lego.com

Where to buy set 21104

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LEGO set 21104, “NASA Mars Science Laboratory Curiosity Rover,” depicts the Curiosity rover from the Mars Science Laboratory mission.

Set 21104 recreates the Curiosity rover, a scientific vehicle associated with Mars exploration. Within LEGO Ideas and CUUSOO, it represents a fan originated concept based on real engineering and space science rather than a fictional space setting or character driven scene.

The build focuses on the rover’s recognizable form, including a low chassis, exposed wheels, a camera mast and details that suggest onboard scientific equipment.

This set suits builders interested in space exploration, technical subjects and compact display models. Among LEGO Ideas and CUUSOO releases, it is best understood as a documentary style model, positioned around a real mission and a clearly identifiable machine.

Inventory of set 21104

The inventory of set 21104 lists 295 pieces, spare parts excluded: 94 different lots (one shape in one color) for 85 part shapes. The box also contains 16 spare parts, for small elements that are easy to lose.

Colors of set 21104

Main color: white, making up 38% of the parts, followed by dark bluish gray (21%) and black (21%).

Color	Parts	Share
White	112	38%
Dark Bluish Gray	63	21%
Black	61	21%
Light Bluish Gray	36	12%
Dark Tan	7	2.4%
Pearl Gold	6	2%
Blue	5	1.7%
Tan	4	1.4%
Trans-Red	1	0.3%

Part types

Type	Parts	Share
Technic Connectors	35	12%
Plates	34	12%
Bricks Sloped	29	9.8%
Technic Axles	28	9.5%
Tiles	25	8.5%
Plates Special	22	7.5%

Most common parts in set 21104

Part	Color	Quantity
Brick Sloped 33° 3 x 2 3298	Dark Bluish Gray	20
Technic Axle Connector with Axle Hole 32039	Black	18
Tile 1 x 1 with Groove 3070b	White	12
Technic Axle 2 Notched 32062	Black	10
Tile 1 x 2 with Groove 3069b	White	9
Brick Special 1 x 1 with Headlight 4070	White	7
Technic Axle 3 with Stud 6587	Dark Tan	7
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) 15573	White	6
Tile Special 1 x 2 Grille with Bottom Groove 2412b	Pearl Gold	6
Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes 55981	Light Bluish Gray	6

84 of the 85 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts

No part in set 21104 is exclusive: each one is found in at least one other set, which makes replacing a lost element easier.

Rebuilding set 21104 from another set

Share of the parts of set 21104 found in each of these similarly sized sets, counting shape, colour and quantity:

Set	Found	Parts	Release year
10186 General Grievous	33%	1,085	2008
21317 Steamboat Willie	25%	751	2019
5974 Galactic Enforcer	25%	825	2009

No similarly sized set goes above 33%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.

Size of set 21104 within its line

With 295 pieces, set 21104 ranks #80 out of 94 LEGO Ideas and CUUSOO sets in our database, which have an average of 1,279 parts. Among the 478 sets released in 2014, it ranks #125. That is less than half the average LEGO Ideas and CUUSOO set size.

Frequently asked questions

How many pieces does LEGO set 21104 NASA Mars Science Laboratory Curiosity Rover have?

LEGO set 21104 NASA Mars Science Laboratory Curiosity Rover has 295 pieces. It was released in 2014 as part of the LEGO Ideas and CUUSOO theme.

What year was LEGO set 21104 released?

Set 21104 NASA Mars Science Laboratory Curiosity Rover was released in 2014 and belongs to the LEGO Ideas and CUUSOO theme.

Which minifigures are included in set 21104?

LEGO set 21104 NASA Mars Science Laboratory Curiosity Rover does not include any minifigures.

Where can I find the building instructions for set 21104?

The instructions for LEGO set 21104 NASA Mars Science Laboratory Curiosity Rover can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 21104.

What is the main color of LEGO set 21104?

White, with 112 out of 295 pieces, or 38%. Next come dark bluish gray (21%) and black (21%).

How many different parts does set 21104 contain?

Set 21104 has 94 different lots (one shape in one color), covering 85 part shapes. Most common part: Brick Sloped 33° 3 x 2 in dark bluish gray, with 20 copies.

Does LEGO set 21104 contain any exclusive parts?

No: every one of its parts is found in at least one other set.

Which similarly sized set contains the most parts from set 21104?

Set 10186 General Grievous, released in 2008: it supplies 33%, counting shapes, colors and quantities.

Is this set part of a classic LEGO Space theme?

No. It is classified under LEGO Ideas and CUUSOO, although its subject comes from real space exploration.