Setobrick

LEGO Technic 42103 Dragster

2020225 piecesno minifigures

LEGO 42103 Dragster

Specifications

Set number42103
Release year2020
Piece count225
Minifigures0
ThemeTechnic
Building instructionsDownload the instructions on lego.com

Where to buy set 42103

Also on: Amazon.co.uk · Amazon.ca

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LEGO Technic 42103, Dragster, is a racing car model released in 2020 within the Technic theme.

Set 42103 depicts a dragster, a racing car type associated with rapid straight line acceleration. Within the Technic theme, it belongs to the smaller vehicle models that emphasize exposed structure, wheel layout and mechanical construction rather than a fully enclosed body.

The build uses typical Technic elements such as beams, axles, connectors and body panels, giving a clear view of how the chassis and wheels are assembled.

It suits builders who want a compact Technic racing vehicle for play, display or comparison within a collection.

Inventory of set 42103

The inventory of set 42103 lists 225 pieces, spare parts excluded: 69 different lots (one shape in one color) for 64 part shapes. The box also contains 11 spare parts, for small elements that are easy to lose.

Colors of set 42103

Main color: black, making up 31% of the parts, followed by blue (20%) and light bluish gray (15%).

ColorPartsShare
Black7031%
Blue4620%
Light Bluish Gray3315%
Dark Bluish Gray188%
Yellow135.8%
Red125.3%
Lime62.7%
Trans-Yellow62.7%
White52.2%
Trans-Orange41.8%
Other colors (4)114.9%

Part types

TypePartsShare
Technic Pins7232%
Technic Beams3917%
Technic Connectors3516%
Technic Axles198.4%
Technic Panels114.9%
Tiles Round and Curved114.9%

Most common parts in set 42103

63 of the 64 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

Exclusive parts in set 42103

One part shape in set 42103 appears in no other set in the catalog, most often a printed element, a sticker or a mold specific to the model. If it gets lost, you will need to look for it individually, for example on BrickLink, rather than in another set.

PartColor
Sticker Sheet for Set 42103-1 65482

Rebuilding set 42103 from another set

Share of the parts of set 42103 found in each of these similarly sized sets, counting shape, colour and quantity:

No similarly sized set goes above 50%: the model relies on a little-shared assortment, most of which has to be gathered piece by piece.

Size of set 42103 within its line

With 225 pieces, set 42103 ranks #283 out of 443 Technic sets in our database, which have an average of 658 parts. Among the 490 sets released in 2020, it ranks #218. That is less than half the average Technic set size.

Frequently asked questions

How many pieces does LEGO set 42103 Dragster have?

LEGO set 42103 Dragster has 225 pieces. It was released in 2020 as part of the Technic theme.

What year was LEGO set 42103 released?

Set 42103 Dragster was released in 2020 and belongs to the Technic theme.

Which minifigures are included in set 42103?

LEGO set 42103 Dragster does not include any minifigures.

Where can I find the building instructions for set 42103?

The instructions for LEGO set 42103 Dragster can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 42103.

What is the main color of LEGO set 42103?

Black, with 70 out of 225 pieces, or 31%. Next come blue (20%) and light bluish gray (15%).

How many different parts does set 42103 contain?

Set 42103 has 69 different lots (one shape in one color), covering 64 part shapes. Most common part: Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots in blue, with 32 copies.

Does LEGO set 42103 contain any exclusive parts?

Yes: one part shape exists in no other set: Sticker Sheet for Set 42103-1.

Which similarly sized set contains the most parts from set 42103?

Set 31313 Mindstorms EV3, released in 2013: it supplies 50%, counting shapes, colors and quantities.

Set number42103
Release year2020
ThemeTechnic
Piece count225
Minifigures0
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-30