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.

Basic Set

Checking

2330 Basic Set

10 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

Red 4 pieces

  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×2
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×1
  • Duplo Door / Window Frame Flat Front Surface Red Part 4253 ×1

Yellow 4 pieces

  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×1
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×1
  • Duplo Car Base 2 x 6 with Red Wheels and Old Style Closed Hitch End Yellow Part 4883c02 ×1
  • Duplo Door / Window Yellow Part 4247 Element 424724 ×1

Blue 1 piece

  • Duplo 2 x 2 x 2 Figure Brick Early, Short Spiky Hair Brown, Cheek Freckles Print Blue Part dupfig0009pr0004 ×1

Green 1 piece

  • Duplo Brick 2 x 2 Green Part 3437 Element 6528078 or 4583552 ×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.