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.

Blue and Yellow Bricks

Checking

932 Blue and Yellow Bricks

45 pieces in 12 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

Yellow 23 pieces

  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×3
  • Brick 2 x 10 Yellow Part 3006 Element 6119276 or 6073100 ×1
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×6
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×8
  • Brick 2 x 8 Yellow Part 3007 Element 4639693 or 300724 ×1

Blue 22 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×3
  • Brick 2 x 10 Blue Part 3006 Element 4615600 or 300623 ×1
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×6
  • Brick 2 x 3 without Cross Supports Blue Part 3002a ×3
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×8
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×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.