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.

My First Set

Checking

40167 My First Set

9 pieces in 9 part and color combinations.

LEGO counts 10 pieces. This inventory comes from a separate parts catalog and lists 9; 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

Duplo, Quatro and Primo 6 pieces

  • Duplo Plate 4 x 4 Bright Green Part 14721 Element 6070667 ×1
  • Duplo Brick 2 x 2 Medium Azure Part 3437 Element 6054619 ×1
  • Duplo Flag Wavy 2 x 5 Red Part 15793 Element 6082294 ×1
  • Duplo Animal Rabbit with Head Raised and Pink Nose Print Reddish Brown Part 17684pr0001 Element 6103081 ×1
  • Duplo Flagpole / Antenna 1 x 9 Reddish Brown Part 51708 Element 4585937 or 4249081 ×1
  • Duplo Brick 1 x 4 x 2 with 2 Top Cutouts (Arrow Slits) Yellow Part 16685 Element 6250858 or 6071250 ×1

Non-System Parts 3 pieces

  • Display Card, Duplo, Afternoon [No Color/Any Color] Part 6146528 ×1
  • Display Card, Duplo, Evening [No Color/Any Color] Part 6146525 ×1
  • Display Card, Duplo, Morning [No Color/Any Color] Part 6146527 ×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.