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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.

Alphabet Bricks

Checking

EG00143 Alphabet Bricks

160 pieces in 39 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Bricks 76 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×4
  • Brick 1 x 1 Bright Pink Part 3005 Element 4286050 or 4245298 ×4
  • Brick 1 x 4 Bright Pink Part 3010 Element 4518890 ×4
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×4
  • Brick 1 x 4 Lime Part 3010 Element 4234716 or 4122449 ×4
  • Brick 1 x 4 Medium Azure Part 3010 Element 6603319 or 6036238 ×4
  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 ×4
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×4
  • Brick 1 x 4 Orange Part 3010 Element 4118827 ×4
  • Brick 1 x 4 Red Part 3010 Element 301021 ×4
  • Brick 1 x 1 Sand Green Part 3005 Element 4521948 or 4517507 ×4
  • Brick 1 x 2 without Bottom Tube Trans-Light Blue Part 3065 Element 6514268 or 6244910 ×8
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×4
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 1 x 2 Yellowish Green Part 3004 Element 6104578 or 6088532 ×4

Bricks Sloped 52 pieces

  • Brick Sloped Inverted 45° 2 x 1 Dark Azure Part 3665 Element 6298469 or 6135608 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Green Part 54200 Element 4546705 or 4503118 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Green Part 3040b Element 4121969 or 4109668 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Orange Part 54200 Element 4504371 or 4248195 Also in Trans-Orange ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×4
  • Brick Sloped Inverted 45° 2 x 1 Orange Part 3665 Element 4616279 or 4515954 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Dark Blue Part 54200 Element 6245256 or 4244366 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 Also in Orange ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Yellow Part 54200 Element 6245272 or 4260942 Also in Yellow ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 Also in Trans-Yellow ×4
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×4

Plates 32 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×4
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×4
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×4
  • Plate 1 x 4 Medium Lavender Part 3710 Element 6015108 or 4619524 ×4
  • Plate 1 x 2 Medium Nougat Part 3023 Element 6218360 or 4645055 ×4
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×4
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×4
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4

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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