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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.

Big Ben

Checking

21013 Big Ben

346 pieces in 34 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

Plates 87 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Bluish Gray ×1
  • Plate 6 x 10 Black Part 3033 Element 303326 ×2
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box Also in Black ×6
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×1
  • Plate 2 x 3 Dark Green Part 3021 Element 6013801 or 4650244 ×2
  • Plate 1 x 2 Tan Part 3023 Element 4113917 or 302305 ×38
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×14
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×5
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×18

Bricks Round and Cones 63 pieces

  • Cone 1 x 1 [Top Groove] Dark Bluish Gray Part 59900 Element 4529240 ×1
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×57
  • Cone 1 x 1 [Top Groove] Tan Part 59900 Element 4529237 ×5

Tiles 59 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Bluish Gray ×4
  • Tile 1 x 8 with "Big Ben" Print Black Part 4162pr0017 Element 6011634 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×3
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×8
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 Also in Black ×1
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×3
  • Tile 1 x 8 with Groove Light Bluish Gray Part 4162 Element 4211481 ×3
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box ×34
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×2

Bricks 35 pieces

  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×27
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×4
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×4

Tiles Special 32 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Tan Part 2412b Element 4124456 or 393305 ×32

Plates Round Curved and Dishes 28 pieces

  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 1 spare in the box ×24

Bricks Special 17 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×9
  • Brick Special 1 x 1 with Studs on 2 Sides Light Bluish Gray Part 47905 Element 4213567 ×3
  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×5

Plates Special 16 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×16

Bricks Sloped 5 pieces

  • Brick Sloped 45° 2 x 1 Double with Inside Stud Holder Dark Bluish Gray Part 3044c Element 4226221 ×4
  • Brick Sloped 75° 2 x 2 x 2 Quadruple Convex Dark Bluish Gray Part 3688 Element 4645099 ×1

Tiles Round and Curved 4 pieces

  • Tile Round 2 x 2 with Clock Print White Part 4150pr0001 Element 4507355 or 4142872 ×4

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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