The Workshop Sheet 10 of 22

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Basic Set

Checking

2241 Basic Set

32 pieces in 15 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 32 pieces

  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×5
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×1
  • Duplo Brick 2 x 4 x 2 Rounded Ends Blue Part 4198 Element 644823 ×1
  • Duplo Brick 2 x 4 x 2 with Big Red Bird Print Blue Part 31111pr0020 Element 4107933 ×1
  • Duplo Brick 2 x 2 Green Part 3437 Element 6528078 or 4583552 ×5
  • Duplo Brick 2 x 2 x 2 Green Part 31110 Element 4107912 ×1
  • Duplo Brick 2 x 4 Green Part 3011 Element 4290071 or 301128 ×1
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×5
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×1
  • Duplo Brick 2 x 8 Red Part 4199 Element 4291879 or 419921 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×5
  • Duplo Brick 2 x 2 with Eye with White Spot Print, on Two Sides - Type 1 Yellow Part 3437pr0067 Element 82061 ×2
  • Duplo Brick 2 x 2 x 2 Yellow Part 31110 Element 4566620 or 4107911 ×1
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×1
  • Duplo Brick 2 x 4 x 2 with Apple Tree Print Yellow Part 31111pr9996 Element 4107938 ×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.