
Rocket Truck
Set 31103 belongs to the Creator 3-in-1 range and rebuilds from the same 198 pieces into three different vehicle models. With 90 different shapes, it offers a decent part variety for a 3-in-1 set. Light bluish grey, dark bluish grey, white and lime create a technical, sporty colour scheme.
- Set number
- 31103
- Year
- 2020
- Pieces
- 198
- Minifigures
- 0
- Theme
- Creator 3-in-1
- Different parts
- 90
Parts list 90
-
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
× 10
-
Plate Special 1 × 2 with Door Rail
× 8
-
Plate 1 × 2
× 7
-
Plate 1 × 1
× 6
-
Brick Curved 2 × 1 No Studs [1/2 Bow]
× 6
-
Plate 2 × 2
× 5
-
Plate 1 × 6
× 5
-
Technic Axle 4 with Stop
× 5
-
Technic Bush
× 4
-
Plate Special 1 × 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
× 4
-
Bracket 3 × 2 × 1 1/3 with Pin Bottom
No longer produced · last seen 2021
× 4
-
Technic Brick 1 × 2 [2 Pin Holes]
× 4
-
Tyre 37 × 22 ZR
× 4
-
Wheel 30.4 × 20 without Pinholes, with Reinforced Rim
× 4
-
Technic Pin with Friction Ridges Lengthwise and Center Slots
No longer produced · last seen 2021
× 3
-
Plate 2 × 3
× 3
-
Plate 1 × 2
× 3
-
Technic Pin 1/2 without Friction Ridges
× 3
-
Wave / Flame Rounded with Base Rim
× 3
-
Plate 2 × 2 Corner
× 2
-
Plate 2 × 2 Corner
× 2
-
Tile Special 1 × 2 with Handle
× 2
-
Plate 2 × 3
× 2
-
Brick Sloped 45° 2 × 1 with Bottom Pin
× 2
-
Plate 1 × 3
× 2
-
Brick Sloped Inverted 45° 2 × 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]
× 2
-
Brick Sloped Inverted 45° 2 × 1
× 2
-
Technic Brick 1 × 2 [1 Pin Hole]
× 2
-
Technic Axle 4
× 2
-
Plate 1 × 4
× 2
-
Brick Curved 2 × 1 No Studs [1/2 Bow]
× 2
-
Brick Curved 2 × 2 × 2/3
× 2
-
Tile Special 2 × 3 Pentagonal
× 2
-
Brick Special 1 × 2 × 1 2/3 with 4 Studs on 1 Side
× 2
-
Bar Holder with Hole and Bar Handle
× 2
-
Panel 1 × 3 × 1
× 2
-
Wedge Plate 2 × 2 Left
× 2
-
Wedge Plate 2 × 2 Right
× 2
-
Tile Special 2 × 2 Corner with Cut Corner - Facet
× 2
-
Wheel Arch, Mudguard 3 × 4 with 2 × 2 Plate
No longer produced · last seen 2023
× 2
-
Bar 4L (Lightsaber Blade / Wand)
× 2
-
Hinge Cylinder 1 × 2 Locking with 1 Finger and Axle Hole On Ends
No longer produced · last seen 2020
× 2
-
Technic Axle and Pin Connector Perpendicular Double
× 2
-
Plate Special 1 × 3 with 2 Studs with Groove and Inside Stud Holder (Jumper)
× 2
-
Brick Sloped Inverted 33° 3 × 1 with Internal Stopper and No Front Stud Connection
× 2
-
Hinge Plate 1 × 2 Locking with 2 Fingers On End, with Groove, 9 Teeth
No longer produced · last seen 2020
× 2
-
Brick Sloped 30° 1 × 1 × 2/3 (Cheese Slope)
× 2
-
Wheel 31 × 15 Technic, 7 Pin Holes
× 2
-
Brick Special 1 × 1 with Clip Horizontal
× 2
-
Brick Sloped 65° 2 × 1 × 2
× 2
-
Brick Sloped 18° 2 × 1 × 2/3 with 4 Slots / Grate
× 2
-
Wheel Arch, Mudguard, 1 1/2 × 6 × 1 [Arch Extended]
× 2
-
Tile 1 × 3
× 2
-
Arm Mechanical with Clip [Thick Support]
× 2
-
Bracket 1 × 2 - 2 × 2 Inverted
× 2
-
Lever Small Base with Black Lever
× 1
-
Brick 2 × 2
× 1
-
Brick 1 × 2
× 1
-
Plate 2 × 4
× 1
-
Brick Round 2 × 2 Dome Top, Hollow Stud
× 1
No part matches this colour selection.
Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.
Spare parts (7)
These extra parts come with the set in case one gets lost.
-
Technic Pin with Friction Ridges Lengthwise and Center Slots
No longer produced · last seen 2021
× 1
-
Lever Small Base with Black Lever
× 1
-
Plate 1 × 1
× 1
-
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
× 1
-
Technic Bush
× 1
-
Technic Pin 1/2 without Friction Ridges
× 1
-
Brick Sloped 30° 1 × 1 × 2/3 (Cheese Slope)
× 1
Alternative models
A 3-in-1 set: the official LEGO® building instructions contain three models you can build from the same parts. View the official building instructions at LEGO® ↗
What can I build with it?Description
Three models from one box
The defining feature of 31103 is the Creator range's 3-in-1 approach: the same 198 pieces can be rebuilt into three separate vehicle models, each following its own instructions. The 90 different shapes cover typical vehicle elements such as wheels, body panels and technical details that get reassembled differently for each version. At 198 pieces, each individual build stays compact, so all three variants can realistically be built one after another in a reasonable amount of time. The parts list on this page shows every included shape, regardless of which of the three models is currently built.
A technical palette for vehicles
Light bluish grey, dark bluish grey, white and lime make up the palette, giving the models a sporty, technical look well suited to vehicle builds. Among the 90 unique parts are plenty of classic technic and body shapes that also work well in other vehicle projects outside this set. Builders with several Creator sets can mix this set's colours into other vehicle models to build up a larger fleet. The parts list helps identify matching shapes and colours for that kind of expansion.
Pure vehicle building, no minifigures
The set includes no minifigures, focusing entirely on the vehicle building itself. For anyone who enjoys tinkering with technical construction, the 3-in-1 format adds extra appeal: after finishing the first model, the same collection of parts can be rebuilt two more times without buying anything extra. That makes 31103 a good choice for anyone who wants more building time out of a single set rather than just one finished model.
A compact set with three builds
At 198 pieces, 31103 sits in the typical range for smaller Creator 3-in-1 sets and works well as an introduction to the rebuilding concept. Building all three models in turn adds up to considerably more total building time than the piece count alone suggests. The parts list on this page gives a complete overview of every shape and colour, whichever model is currently under construction.
FAQ
- How many pieces does set 31103 have?
- The set contains 198 pieces across 90 unique parts and colours.
- What does 3-in-1 mean for this set?
- The same 198 pieces can be rebuilt into three different vehicle models, each with its own instructions.
- Does the set include minifigures?
- No, the set focuses entirely on vehicle building with no minifigures.



