BlockTalk Find Your Set

Free tool

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.

Classic Trial Box

Checking

4283 Classic Trial Box

53 pieces in 20 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

Bricks 51 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×4
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×4
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×1
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×6
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×4
  • Brick 2 x 2 with Eye with White Print on Two Sides, Offset White Part 3003pr0053 Element 81508 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×6
  • Brick 2 x 2 with Eye with White Print on Two Sides, Offset Yellow Part 3003pr0053 Element 81910 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×5
  • Brick 2 x 4 with Smile and Frown Print on Opposite Sides Yellow Part 3001pr0043 Element 80141 ×1

Bricks Curved 2 pieces

  • Brick Curved 2 x 4 x 2 Double with Yellow Girl Face Print Black Part 4744pr0001 Element 81781 ×1
  • Brick Curved 2 x 4 x 2 Double [Plain] Green Part 4744 Element 474428 ×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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