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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.

Duck with Ducklings

Checking

40030 Duck with Ducklings

51 pieces in 22 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

Red 18 pieces

  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×4
  • Plate 2 x 3 Red Part 3021 Element 302121 ×4
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×10

Yellow 15 pieces

  • Brick 2 x 2 with Eye with White Print on Two Sides, White Circle in Pupil, Offset Yellow Part 3003pr0001 Element 4569077 ×3
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×3
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×3
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Yellow Part 3794b Element 379424 ×3

White 10 pieces

  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×2
  • Brick 2 x 2 with Eye without White Print on Two Sides, Circle in Pupil, Offset White Part 3003pr0002 Element 4569079 ×2
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) White Part 3794b ×1

Orange 4 pieces

  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×1
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×2

Tan 4 pieces

  • Brick 2 x 3 Tan Part 3002 Element 4159739 or 300205 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Tan Part 54200 Element 4516055 or 4278069 1 spare in the box ×1
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Tan Part 3794b Element 4155708 ×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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