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.

Snail

Checking

LMG009 Snail

8 pieces in 6 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 Sloped 6 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Green Part 3040b Element 4121969 or 4109668 ×2
  • Brick Sloped Inverted 45° 2 x 1 Green Part 3665 Element 4142989 or 4119659 ×2
  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×1
  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Yellow Part 4287a ×1

Bricks 1 piece

  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×1

Plates 1 piece

  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×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.