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.

Yellow Tub

Checking

5367 Yellow Tub

100 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

Duplo, Quatro and Primo 100 pieces

  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×10
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×5
  • Duplo Brick 2 x 4 x 2 Rounded Ends Blue Part 4198 Element 644823 ×2
  • Duplo Brick 2 x 2 Bright Green Part 3437 Element 4583789 or 4168579 ×10
  • Duplo Brick 2 x 4 Bright Green Part 3011 Element 4513084 or 4290085 ×5
  • Duplo Brick 1 x 2 x 2 Green Part 4066 Element 4100630 ×6
  • Duplo Brick 2 x 3 x 2 with Curve Green Part 2301 Element 230128 ×5
  • Duplo Brick 2 x 2 Light Yellow Part 3437 Element 4157594 ×2
  • Duplo Brick 2 x 6 Light Yellow Part 2300 Element 4290390 or 4157592 ×1
  • Duplo Brick 2 x 2 Orange Part 3437 Element 4159527 ×12
  • Duplo Brick 2 x 4 Orange Part 3011 Element 4290078 or 4158403 ×5
  • Duplo Animal Brick 2 x 2 Rounded Purple Part 44198 Element 4185685 ×1
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×10
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×5
  • Duplo Door / Window Frame with Raised Door Outline Red Part 2332 Element 233221 or 74923 ×1
  • Duplo Brick 2 x 2 x 2 White Part 31110 Element 4143308 ×2
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×10
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×5
  • Duplo Brick 8 x 8 Yellow Part 31113 Element 4101454 ×2
  • Duplo Door / Window with Four Panes Yellow Part 4809 Element 480924 ×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.