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.

Spinner

Checking

2123 Spinner

12 pieces in 9 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 5 pieces

  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×1
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×2

Bricks Curved 3 pieces

  • Brick Curved 2 x 3 Red Part 6215 Element 621521 ×2
  • Brick Curved 2 x 4 x 2 Double with Face and Horns Print Red Part 4744pr0027 ×1

Plants & Trees 2 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×2

Bricks Special 1 piece

  • Brick Special 2 x 2 No Studs, Top Pin Yellow Part 4729 Element 4100523 or 472924 ×1

Wheels and Tyres 1 piece

  • Wheel Freestyle with 2 x 2 Studs and Pin Hole Red Part 6248 Element 4144357 or 624821 ×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.