BlockTalk Find Your Set

Free tool

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.

Large Brick Box

Checking

5380 Large Brick Box

71 pieces in 25 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.

Show

Piece checklist

Duplo, Quatro and Primo 70 pieces

  • Duplo Brick 2 x 2 Black Part 3437 Element 4583790 or 343726 ×4
  • Duplo Brick 2 x 4 Black Part 3011 Element 4513081 or 4290069 ×2
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×6
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×2
  • Duplo Plate 2 x 4 Blue Part 40666 Element 4170804 ×2
  • Duplo Plate 8 x 8 Blue Part 51262 Element 4246956 ×1
  • Duplo Brick 2 x 2 Bright Green Part 3437 Element 4583789 or 4168579 ×6
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Bright Green Part 3437pr0067 Element 4170800 ×2
  • Duplo Brick 2 x 3 with Curved Top Bright Green Part 2302 Element 4170797 ×1
  • Duplo Brick 2 x 4 Bright Green Part 3011 Element 4513084 or 4290085 ×2
  • Duplo Plate 2 x 4 Bright Green Part 40666 Element 4170795 ×2
  • Duplo Brick 2 x 2 x 2 with Indented Sides (Tree Trunk) Dark Orange Part 31061 Element 4100841 ×1
  • Duplo Brick 2 x 2 Lime Part 3437 Element 4183780 ×3
  • Duplo Brick 2 x 4 Lime Part 3011 Element 4290083 or 4166923 ×1
  • Duplo Brick 2 x 2 Medium Blue Part 3437 Element 4166960 or 4162701 ×6
  • Duplo Brick 2 x 4 Medium Blue Part 3011 Element 4290088 or 4167177 ×2
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×9
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×3
  • Duplo Brick 2 x 2 Trans-Light Blue Part 3437 Element 6507900 or 6201835 ×2
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×6
  • Duplo Brick 2 x 2 Slope 45° Yellow Part 6474 Element 4118928 ×2
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×2
  • Duplo Car Base 2 x 6 with Open Hitch End and Red Wheels Yellow Part 2312c02 Element 6006222 or 4592297 ×1
  • Duplo Plate 2 x 4 Yellow Part 40666 Element 4160152 ×2

Non-Buildable Figures (Duplo, Fabuland, etc) 1 piece

  • Duplo Figure Child with Cap Lime, with White Shirt under Blue Coveralls with worms in Pocket - Blue Legs White Part 47511pr0001 Element 6233829 or 4651115 ×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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