LEGO 6831
Message Decoder

LEGO 6831 Message Decoder box image
Set number
6831
Theme
Space Police I
Pieces
34 pcs
Year
1989
Used & parts
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“Message Decoder” is LEGO® “Space Police I” theme set number 6831. Released in 1989, it has 34 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 18 types

Color split (most first)
Black×19
Blue×5
Trans-Red×4
Main parts (most used first)
4288 Wheel Full Rubber Balloon with Axle hole
Black · ×4
122c01 Plate Special 2 x 2 with Wheels Red
Black · ×2
298c02 Lever Small Base with Black Lever
Black · ×2
3787 Wheel Arch, Mudguard 2 x 4 [Smooth]
Black · ×2
3957a Antenna 1 x 4 with Rounded Top
Black · ×2
4070 Brick Special 1 x 1 with Headlight
Blue · ×2
4740 Dish 2 x 2 Inverted [Radar]
Trans-Red · ×2
6141 Plate Round 1 x 1 with Solid Stud
Trans-Red · ×2
3020 Plate 2 x 4
Black · ×1
3022 Plate 2 x 2
Black · ×1
3039 Slope 45° 2 x 2
Blue · ×1
3298pr0013 Slope 33° 3 x 2 with 'POLICE' print (Space Police I)
Black · ×1
3832 Plate 2 x 10
Black · ×1
3937 Hinge Brick 1 x 2 Base
Blue · ×1
3938 Hinge Brick 1 x 2 Top Plate Thin
Black · ×1
4590 Plate Special 1 x 4 Offset with Bar Holes
Black · ×1
4859 Wedge Plate 3 x 4 without Stud Notches
Blue · ×1
4873 Bar 1 x 6 [Open Studs]
Black · ×1

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