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.

Polar Animals (Explore)

Checking

3621 Polar Animals (Explore)

31 pieces in 23 part and color combinations.

LEGO counts 29 pieces. This inventory comes from a separate parts catalog and lists 31; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

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 29 pieces

  • Duplo Animal Killer Whale/Orca, Adult Black Part 75580 Element 75580 ×1
  • Duplo Animal Killer Whale/Orca, Baby Black Part 6434pr0001 Element 82281 ×1
  • Duplo Animal Penguin, with White Only, Chest Print Black Part 54651pr0001 Element 82280 ×2
  • Duplo Parka with Hood Blue Part 42867 Element 4166881 ×2
  • Duplo Airplane, High Small Wings, with Dark Gray Underside and Black Propeller Orange Part 2159c01 Element 4171886 ×1
  • Duplo Tent Orange Part 43062 Element 4169208 ×1
  • Duplo Helicopter Skids Small Pearl Light Gray Part 6353 Element 4192610 ×1
  • Duplo Suitcase Pearl Light Gray Part 6427 Element 4157602 ×1
  • Duplo Skis Red Part 41977 Element 4162959 ×1
  • Duplo Snowmobile Front Red Part 43088 Element 4169209 ×1
  • Duplo Brick 2 x 2 Trans-Dark Blue Part 3437 Element 4583325 or 4287254 ×2
  • Duplo Brick 2 x 2 Trans-Light Blue Part 3437 Element 6507900 or 6201835 ×1
  • Duplo Brick 2 x 4 Trans-Light Blue Part 3011 Element 6507904 or 6202108 ×3
  • Duplo Animal Polar Bear Adult, Round Eyes White Part 74588pr0002 Element 4166497 or 4108005 ×1
  • Duplo Animal Polar Bear Cub on Blue Base, Round Eyes White Part 75016c01pr0001 ×1
  • Duplo Brick 2 x 4 White Part 3011 Element 301101 ×1
  • Duplo Brick 2 x 6 White Part 2300 Element 4581256 or 4290353 ×3
  • Duplo Fire / Grass / Ice 1 x 4 x 2 White Part 31168 Element 4589699 or 4165991 ×2
  • Duplo Rock Cave 4 x 4 x 6 White Part 31071 Element 4171818 or 4142787 ×1
  • Duplo Video Camera Yellow Part 6504 Element 4171258 ×1
  • Duplo Playmat, Snow with Footprints, Fish, Water, Icebergs Print [No Color/Any Color] Part 4173956 ×1

Non-Buildable Figures (Duplo, Fabuland, etc) 2 pieces

  • Duplo Figure, Early, Ponytail Black, Yellow Legs, Shirt Print Dark Gray Part 43324pr0001 ×1
  • Duplo Figure, Early, with Short Parted Hair Black, Dark Gray Legs, Blue Arms, Shirt Print Dark Gray Part 74511pr0011 ×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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