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LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Birthday Cake

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40641 Birthday Cake

203 pieces in 63 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 parts inside the set's minifigures, which this inventory lists separately. 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

Tiles Round and Curved 50 pieces

  • Tile Round 1 x 1 Half Circle Dark Purple Part 24246 Element 6313558 1 spare in the box ×1
  • Tile Round 1 x 1 Light Aqua Part 98138 Element 6398079 or 6322818 1 spare in the box ×3
  • Tile Round 1 x 1 Half Circle Lime Part 24246 Element 6250601 or 6236776 1 spare in the box ×1
  • Tile Round 1 x 1 Half Circle Orange Part 24246 Element 6344851 or 6177760 1 spare in the box ×1
  • Tile Round 1 x 1 Half Circle Red Part 24246 Element 6258973 1 spare in the box ×1
  • Tile Round 1 x 1 Quarter Reddish Brown Part 25269 Element 6149677 1 spare in the box ×40
  • Tile Round 1 x 1 Yellow Part 98138 Element 6284577 or 6070714 1 spare in the box ×3

Plates 27 pieces

  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×1
  • Plate 1 x 6 Light Aqua Part 3666 Element 6146702 ×1
  • Plate 2 x 4 Light Aqua Part 3020 Element 6138662 or 6014539 ×5
  • Plate 1 x 8 Reddish Brown Part 3460 Element 4216945 ×2
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 5 White Part 78329 Element 6550185 or 6350399 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×1
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×4
  • Plate 4 x 6 White Part 3032 Element 303201 ×3

Bricks Special 23 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Dark Pink Part 22885 Element 6132426 ×6
  • Brick Special 1 x 1 with Stud on 1 Side Light Aqua Part 87087 Element 4619815 ×5
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×3
  • Brick Special 1 x 2 with Studs on 2 Sides White Part 52107 Element 6548274 or 4667575 ×3
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Yellow Part 22885 Element 6313592 ×6

Tiles 20 pieces

  • Tile 1 x 2 with Groove Dark Pink Part 3069b Element 6056381 ×1
  • Tile 1 x 6 with Groove Dark Pink Part 6636 Element 4649764 ×3
  • Tile 2 x 2 with Groove Light Aqua Part 3068b Element 6192270 ×4
  • Tile 2 x 4 with Groove Light Aqua Part 87079 Element 6242256 ×8
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×1
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×3

Bricks Curved 10 pieces

  • Brick Curved 2 x 2 x 2/3 Reddish Brown Part 15068 Element 6146858 ×4
  • Brick Curved 8 x 2 No Studs Reddish Brown Part 42918 Element 6309010 ×4
  • Brick Curved 1 x 2 x 1 No Studs White Part 37352 Element 6552172 or 6248827 ×1
  • Brick Curved Inverted 2 x 2 x 2/3 White Part 32803 Element 6210385 ×1

Energy Effects 10 pieces

  • Wave / Flame Small with Pin Trans-Orange Part 37775 Element 6514274 or 6357747 1 spare in the box ×10

Bricks Round and Cones 9 pieces

  • Brick Round 2 x 2 Dome Top, Vented Stud Dark Turquoise Part 3262 Element 6429063 ×1
  • Brick Round 2 x 2 Dome Bottom [Open Stud] Medium Azure Part 15395 Element 6132411 ×1
  • Brick Round 2 x 2 with Axle Hole Tan Part 3941 Element 4125220 or 614305 ×1
  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×6

Plates Round Curved and Dishes 9 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×4
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×5

Plants & Trees 8 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Bright Pink Part 24866 Element 6212501 1 spare in the box ×8

Bricks 7 pieces

  • Brick 1 x 2 Light Aqua Part 3004 Element 6022032 ×3
  • Brick 1 x 3 Light Aqua Part 3622 Element 6295228 or 6172587 ×1
  • Brick 1 x 6 Light Aqua Part 3009 Element 6227921 or 4616203 ×3

Minifig Accessories 7 pieces

  • Equipment Candlestick White Part 37762 Element 6234807 ×7

Plates Special 6 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Purple Part 15573 Element 6092604 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Reddish Brown Part 18674 Element 6102360 ×1
  • Plate Special Round 2 x 2 with Melting Drops/Icing on Sides Reddish Brown Part 65700 Element 6286644 ×1
  • Plate Special 2 x 2 with Only 2 Studs White Part 33909 Element 6552170 or 6548287 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×1
  • Plate Special 3 x 5 Cloud with 3 Center Studs White Part 35470 Element 6223667 ×1

Hinges, Arms and Turntables 4 pieces

  • Hinge Plate 2 x 4 with Pin Hole with 2 Holes - Top White Part 43045 Element 6266332 ×4

Tiles Special 4 pieces

  • Tile, Star with Stud Holder, Pin Hole Bright Light Orange Part 11609 Element 6432033 or 6167776 1 spare in the box ×3
  • Tile Special 4 x 8 Inverted White Part 83496 Element 6430426 ×1

Plates Wedged 2 pieces

  • Wedge Plate 8 x 8 Cut Corner Reddish Brown Part 30504 Element 6234270 ×1
  • Wedge Plate 8 x 8 Cut Corner White Part 30504 Element 4585737 or 4288309 ×1

Technic Connectors 2 pieces

  • Technic Axle Connector Smooth [with x Hole + Orientation] White Part 59443 Element 6212049 ×2

Technic Pins 2 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×2

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Flat Top White Part 3957b Element 6550147 or 395701 ×1

Stickers 1 piece

  • Sticker Sheet for Set 40641-1 [No Color/Any Color] Part 10104641 Element 6447542 ×1

Technic Axles 1 piece

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×1

Minifigures 2 figures

  • Girl, White Vest Top, Short Green Legs, Reddish Brown Hair Minifigure, checked as a whole figure ×1
  • Man, White Shirt with Balloons, Medium Azure Legs, Magenta Helmet Minifigure, checked as a whole figure ×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.

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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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