The Workshop Sheet 10 of 19

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.

Holiday Stocking

Checking

40023 Holiday Stocking

76 pieces in 18 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.

Show

Piece checklist

Plates 41 pieces

  • Plate 1 x 1 Green Part 3024 Element 302428 ×9
  • Plate 1 x 2 Green Part 3023 Element 302328 ×12
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×14
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×5
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1

Bricks 19 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×1
  • Brick 1 x 10 Red Part 6111 Element 611121 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×2
  • Brick 1 x 3 Red Part 3622 Element 362221 ×6
  • Brick 1 x 4 Red Part 3010 Element 301021 ×5
  • Brick 1 x 6 Red Part 3009 Element 300921 ×1
  • Brick 1 x 8 Red Part 3008 Element 300821 ×2

Bricks Sloped 14 pieces

  • Brick Sloped 33° 3 x 1 Red Part 4286 Element 428621 ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×4
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Red Part 4287b ×2
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×5

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×1

Tiles 1 piece

  • Tile 1 x 8 with Groove Red Part 4162 Element 416221 ×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.