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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.

Koi Fish

Checking

40397 Koi Fish

33 pieces in 24 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

Bricks Curved 8 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Orange Part 11477 Element 6055069 ×2
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Orange Part 11153 Element 6037750 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] White Part 11153 Element 6578744 or 6564905 ×1
  • Brick Curved Inverted 2 x 2 x 2/3 White Part 32803 Element 6210385 ×1
  • Brick Curved Inverted 4 x 1 White Part 13547 Element 6552146 or 6034675 ×2

Plates Special 8 pieces

  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Orange Part 60897 Element 6352223 or 6055326 ×1
  • Bracket 1 x 2 - 1 x 2 White Part 99781 Element 6552141 or 6548275 ×2

Plates 6 pieces

  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 1 x 1 Orange Part 3024 Element 4524929 or 4203454 1 spare in the box ×1
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1

Animal / Creature Body Parts 2 pieces

  • Animal / Creature Body Part, Wing Feathered Orange Part 11100 Element 6057921 ×2

Bricks Sloped 2 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2

Tiles Round and Curved 2 pieces

  • Tile Round 2 x 2 with Offset Black Eye Print White Part 14769pr1003 Element 6545267 or 6060734 ×2

Transportation - Land 2 pieces

  • Wheel Arch, Mudguard 3 x 4 with 2 x 2 Plate Black Part 28326 Element 6170597 ×1
  • Wheel Arch, Mudguard 2 x 4 Studded with Hole White Part 60212 Element 4600181 or 4520807 ×1

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Trans-Light Blue Part 3941 Element 6514282 or 6273153 ×1

Plates Round Curved and Dishes 1 piece

  • Plate Round 4 x 4 with Pin Hole Medium Azure Part 60474 Element 6102828 ×1

Plates Wedged 1 piece

  • Wedge Plate 2 x 4 Orange Part 51739 Element 6025385 ×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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