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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Fun with Bricks (including Minifigures)

Checking

4103-2 Fun with Bricks (including Minifigures)

200 pieces in 50 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Dark Bluish Gray 44 pieces

  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 Also in Black ×8
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×12
  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×2
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 Also in Black ×2
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 Also in Black ×8
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 Also in Black ×4
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 Also in Black ×4
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×2
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×2

Red 30 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×8
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×4
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×2
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×2

Black 28 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 Also in Dark Bluish Gray ×8
  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×8
  • Brick 1 x 4 Black Part 3010 Element 301026 Also in Dark Bluish Gray ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 Also in Dark Bluish Gray ×4
  • Brick 2 x 3 Black Part 3002 Element 300226 Also in Dark Bluish Gray ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 Also in Dark Bluish Gray ×2
  • Flexible Hose 8.5L with Tabbed Ends (Ends same color as Tube) Black Part 73590c02a Element 4540890 or 621130 ×2

Blue 28 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×8
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×8
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×4
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×2
  • Brick Sloped Inverted 45° 2 x 1 Blue Part 3665 Element 366523 ×2

White 26 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×8
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×6
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×4
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×2
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2

Yellow 24 pieces

  • Brick 1 x 1 with Simple Eye Black and White Print Yellow Part 3005pr9996 Element 82357 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×8
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×6
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2

Green 20 pieces

  • Brick 1 x 1 Green Part 3005 Element 300528 ×6
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×6
  • Brick 2 x 2 Green Part 3003 Element 300328 ×4
  • Brick 2 x 3 Green Part 3002 Element 4109674 or 300228 ×2
  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×2

Minifigures 1 figure

  • Blue Torso, Green Legs, Red Hat Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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