BlockTalk Find Your Set

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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.

Buildable People with Big Emotions

Checking

10423 Buildable People with Big Emotions

71 pieces in 44 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.

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Piece checklist

Duplo, Quatro and Primo 71 pieces

  • Duplo Brick 2 x 2 Black Part 3437 Element 4583790 or 343726 ×2
  • Duplo Brick 2 x 3 with Curved Top Black Part 2302 Element 6475449 or 6172448 ×2
  • Duplo Brick, Hair, 2 x 2 Top Studs, Straight, Jagged Bangs Black Part 4999 Element 6463863 ×1
  • Duplo Car Base 2 x 4 with Fixed Axles - 27.5 Yellow Wheels and Black Tires Black Part 12592c02 Element 6246959 or 6201043 ×1
  • Duplo Plant / Leaf Black Part 3118 Element 6470141 ×1
  • Duplo Plate 2 x 4 Black Part 40666 Element 4192931 ×2
  • Duplo Brick 2 x 3 with Curved Top Blue Part 2302 Element 230273 or 230223 ×2
  • Duplo Brick Special 1 x 2 Bow Blue Part 39924 Element 6470135 ×1
  • Duplo Plate 2 x 6 Blue Part 98233 Element 6172227 ×1
  • Duplo Support / Umbrella Stand with Square Base (fits 92002) Blue Part 93353 Element 6020922 ×2
  • Duplo Brick 2 x 2 x 2 Bright Green Part 31110 Element 4566314 ×4
  • Duplo Brick 2 x 3 x 2 with Curve Bright Green Part 2301 Element 4170794 ×2
  • Duplo Brick Special 1 x 2 Bow Bright Green Part 39924 Element 6470133 ×1
  • Duplo Brick 2 x 3 x 2 with Curve Bright Light Yellow Part 2301 Element 6470127 ×2
  • Duplo Brick Round 2 x 2 x 2 Bright Light Yellow Part 98225 Element 6302600 ×2
  • Duplo Brick, Hair, 2 x 2 Top Studs, Wavy, Long Bright Light Yellow Part 4998 Element 6463862 ×1
  • Duplo Plate 2 x 4 Bright Light Yellow Part 40666 Element 6303200 ×2
  • Duplo Brick 2 x 3 with Curved Top Coral Part 2302 Element 6294240 ×2
  • Duplo Plate 2 x 4 Coral Part 40666 Element 6288476 ×2
  • Duplo Brick 2 x 3 x 2 with Curved Top Dark Azure Part 11344 Element 6210723 ×2
  • Duplo Brick, Hair, 2 x 2 Top Studs, Rounded Dark Brown Part 5000 Element 6463864 ×1
  • Duplo Brick 2 x 2 Lavender Part 3437 Element 4654789 ×2
  • Duplo Brick 2 x 3 with Curved Top Lavender Part 2302 Element 6475460 or 6295008 ×2
  • Duplo Brick 2 x 6 x 2 Curved with 2 x 2 Cutout on Bottom Lavender Part 11197 Element 6470129 ×1
  • Duplo Brick, Hair, 2 x 2 Top Studs, Rounded Lavender Part 5000 Element 6463865 ×1
  • Duplo Brick 2 x 4 Curved Top with Yellow, Green, Medium Azure, Blue, and Bright Print Squares Print Light Aqua Part 98223pr0037 Element 6464004 ×1
  • Duplo Plate 2 x 4 Light Aqua Part 40666 Element 6296140 ×2
  • Duplo Plate Round 4 x 4 Light Aqua Part 98222 Element 6392988 ×1
  • Duplo Brick 2 x 2 Medium Azure Part 3437 Element 6054619 ×2
  • Duplo Brick 2 x 3 with Curved Bottom Medium Azure Part 98252 Element 6167834 ×2
  • Duplo Brick 2 x 4 Curved Top Medium Azure Part 98223 Element 6167668 ×1
  • Duplo Support Column 2 x 2 x 6 Round with Open Latticed Back Medium Azure Part 57888 Element 6475455 or 6310295 ×2
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Happy Face, Reddish Brown Lines and Spots Print Medium Brown Part 4198pr0035 Element 6464002 ×1
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Worried Face, Glasses Print Medium Nougat Part 4198pr0034 Element 6464001 ×1
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Very Happy Face, Open Mouth Smile with Tooth Print Nougat Part 4198pr0033 Element 6464000 ×1
  • Duplo Brick, Hair, 2 x 2 Top Studs, Spiked to Side, Spiked Bangs Orange Part 4997 Element 6463861 ×1
  • Duplo Plant / Leaf Orange Part 3118 Element 6470142 ×1
  • Duplo Brick 2 x 2 x 2 Slope Red Part 70676 Element 6475459 or 6331278 ×2
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Very Happy Face, Open Mouth Smile Print Reddish Brown Part 4198pr0031 Element 6463980 ×1
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Sad Face, Dark Pink Markings Print Warm Tan Part 4198pr0032 Element 6463999 ×1
  • Duplo Brick 1 x 2 x 2 Log Effect White Part 18783 Element 6475461 or 6145930 ×4
  • Duplo Brick 2 x 4 Curved Top with Yellow, Green, Bright Pink, Blue, and Coral Wavy Lines Print White Part 98223pr0038 Element 6464005 ×2
  • Duplo Plate 4 x 4 White Part 14721 Element 6421340 ×2
  • Duplo Plate 4 x 6 White Part 25549 Element 6475458 or 6330785 ×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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