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.

Holiday Ornament with Red Bricks

Checking

853344 Holiday Ornament with Red Bricks

32 pieces in 4 part and color combinations.

LEGO counts 30 pieces. This inventory comes from a separate parts catalog and lists 32; the two do not always count the same elements, so their totals differ. 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.

Show

Piece checklist

Red 16 pieces

  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×12
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×4

Trans-Red 14 pieces

  • Brick 2 x 2 without Inside Ridges Trans-Red Part 6223 Element 6514092 or 6239416 ×14

Trans-Clear 2 pieces

  • Dome Hemisphere [Bauble Half] with White Snowflakes Print Trans-Clear Part 12708pr0002 ×2

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.