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.

Rainbow Fun

Checking

10401 Rainbow Fun

85 pieces in 42 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

Medium Blue 12 pieces

  • Brick 1 x 2 Medium Blue Part 3004 Element 4629786 or 4179833 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Medium Blue Part 54200 Element 4565363 1 spare in the box ×2
  • Brick Special 1 x 1 with Stud on 1 Side Medium Blue Part 87087 Element 4649756 ×4
  • Plate 2 x 4 Medium Blue Part 3020 Element 6302678 or 4650970 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Medium Blue Part 15573 Element 6092601 ×1

Red 9 pieces

  • Brick Arch 1 x 6 x 3 1/3 Curved Top Red Part 6060 Element 6297822 or 6185958 ×2
  • Brick Curved 2 x 2, Two Top Studs Red Part 30165 Element 4521852 or 4142112 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×2
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×2

Yellow 9 pieces

  • Brick Arch 1 x 3 x 2 Curved Top Yellow Part 6005 Element 4652261 or 4502067 ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×2
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×1

Blue 7 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Blue Part 3040b Element 4121936 or 304023 ×4
  • Lever Small Base with Black Lever Blue Part 298c02 Element 4296152 or 4163988 1 spare in the box ×1
  • Tile Round 1 x 1 with White Star Print Blue Part 98138pr0038 Element 6138208 1 spare in the box ×2

Black 6 pieces

  • Propeller 3 Blade Small Black Part 2421 Element 6170693 or 4289255 ×2
  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×4

Light Bluish Gray 6 pieces

  • Plate Special 1 x 2 with Wheel Holder, Single Slit Light Bluish Gray Part 21445 Element 6125569 ×2
  • Wheel Holder, Plate, Round 2 x 2 Thin with Clips Light Bluish Gray Part 2655 Element 6152344 or 4211373 ×4

Tan 6 pieces

  • Animal Body Part, Cat Tail Tan Part 15429 Element 6109586 ×1
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×4
  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×1

White 6 pieces

  • Animal / Creature Body Part, Wing Feathered White Part 11100 Element 6018302 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Tile 2 x 4 with '60 Years' Print White Part 87079pr0157 Element 6218943 ×1
  • Tile Round 1 x 1 with Offset Black Eye Print White Part 98138pr0008 Element 6284599 or 6029156 1 spare in the box ×2

Bright Light Blue 5 pieces

  • Brick Curved 2 x 2, Two Top Studs Bright Light Blue Part 30165 Element 6231510 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Bright Light Blue Part 30136 Element 6231511 ×2
  • Plate 2 x 3 Bright Light Blue Part 3021 Element 6361991 or 6132423 ×1

Orange 4 pieces

  • Brick 2 x 4 Orange Part 3001 Element 4153827 or 4119641 ×2
  • Plate Round 1 x 1 with Solid Stud Orange Part 6141 Element 4157103 1 spare in the box ×2

Trans-Light Blue 3 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Light Blue Part 54200 Element 6245277 or 6073445 1 spare in the box ×3

Dark Azure 2 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Azure Part 6091 Element 6411366 or 6151669 ×2

Magenta 2 pieces

  • Plate 1 x 1 Magenta Part 3024 Element 6096942 or 6014499 1 spare in the box ×2

Trans-Dark Blue 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 1 spare in the box ×2

Trans-Green 2 pieces

  • Plate 1 x 1 Trans-Green Part 3024 Element 6513967 or 6252046 1 spare in the box ×2

Trans-Orange 2 pieces

  • Brick 1 x 1 Trans-Orange Part 3005 Element 6514209 or 6240550 ×2

Green 1 piece

  • Plate 2 x 8 Green Part 3034 Element 303428 ×1

Pearl Gold 1 piece

  • Creature Body Part, Horn (Unicorn) Pearl Gold Part 89522 Element 6214208 or 4584762 1 spare in the box ×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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