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.

Freestyle Cat

Checking

1836 Freestyle Cat

9 pieces in 6 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

Blue 3 pieces

  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×2
  • Brick Curved 2 x 4 x 2 Double with Green Bow Tie Print Blue Part 4744pr0040 Element 82389 ×1

Red 3 pieces

  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2

Yellow 3 pieces

  • Brick Curved 2 x 3 Yellow Part 6215 Element 621524 ×2
  • Brick Curved 2 x 4 x 2 Double with Tiger Face Print Yellow Part 4744pr0039 Element 82370 ×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.