The Workshop Sheet 10 of 19

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.

Bob

Checking

2122 Bob

14 pieces in 8 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 10 pieces

  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×1
  • Brick 2 x 2 with Eye with White Print on Two Sides, Offset Yellow Part 3003pr0053 Element 81910 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×2
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2
  • Brick 2 x 4 with Wavy Mouth and Eyes Print Yellow Part 3001pr0009 Element 4110006 ×1

Bricks Curved 4 pieces

  • Brick Curved 2 x 3 Green Part 6215 Element 621528 ×2
  • Brick Curved 2 x 3 Red Part 6215 Element 621521 ×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.