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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.

Kladno Campus (2012 Version)

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4000006 Kladno Campus (2012 Version)

278 pieces in 55 part and color combinations.

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

Light Bluish Gray 109 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×6
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Bluish Gray Part 73983 Element 6102769 or 4219256 ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×26
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×6
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×8
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×9
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×3
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×12
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×7
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×6
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 ×8
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×2
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×4
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×2
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×5

Dark Bluish Gray 38 pieces

  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×2
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Bluish Gray Part 44301a Element 4210883 ×3
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 ×13
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×5
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 Also in Black ×4
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×5
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×5

Trans-Clear 38 pieces

  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 ×35
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×3

Black 25 pieces

  • Plate 1 x 3 Black Part 3623 Element 362326 Also in Dark Bluish Gray ×1
  • Plate 2 x 12 Black Part 2445 Element 244526 ×3
  • Plate 6 x 12 Black Part 3028 Element 302826 ×4
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×7
  • Tile 1 x 8 with 'Kladno Campus' Print Black Part 4162pr0089 ×1
  • Tile 1 x 8 with 'September 2012' Print Black Part 4162pr0027 Element 6031551 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×6

Green 25 pieces

  • Plate 1 x 1 Green Part 3024 Element 302428 ×2
  • Plate 1 x 2 Green Part 3023 Element 302328 ×4
  • Plate 1 x 4 Green Part 3710 Element 371028 ×4
  • Plate 2 x 2 Corner Green Part 2420 Element 4157120 or 242028 ×2
  • Plate 2 x 3 Green Part 3021 Element 302128 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Green Part 3794b Element 379428 ×9
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Green Part 87580 Element 6389692 or 4565321 ×1

Red 12 pieces

  • Plate 1 x 1 Red Part 3024 Element 302421 ×4
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×3
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×5

Reddish Brown 10 pieces

  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×5
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 ×5

Bright Green 7 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 ×7

White 5 pieces

  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×5

Yellow 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×2
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×1

Blue 2 pieces

  • Plate 1 x 1 Blue Part 3024 Element 302423 ×2

Tan 2 pieces

  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×2

Metallic Silver 1 piece

  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 ×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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