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.

Stack 'n' Learn Building Blocks

Checking

9005 Stack 'n' Learn Building Blocks

80 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

Blue 20 pieces

  • Primo Brick 1 x 1 Blue Part 31000 Element 4142220 or 4112265 ×17
  • Primo Brick 1 x 2 Blue Part 31001 Element 4142223 or 4112258 ×2
  • Primo Vehicle Wagon without Tow Hitches Blue Part 31008 Element 4142269 ×1

Green 20 pieces

  • Primo Brick 1 x 1 Green Part 31000 Element 4142222 or 4112267 ×17
  • Primo Brick 1 x 2 Green Part 31001 Element 4142224 or 4112259 ×2
  • Primo Brick 1 x 3 Green Part 31002 Element 4144113 or 4112255 ×1

Red 20 pieces

  • Primo Brick 1 x 1 Red Part 31000 Element 4223135 or 4142219 ×17
  • Primo Brick 1 x 2 Red Part 31001 Element 4142226 or 4112261 ×2
  • Primo Figure Boy with Blue Base, Blue Suspenders Print, Brown Hair Red Part 75595c02pr0003 Element 4107976 ×1

Yellow 20 pieces

  • Primo Brick 1 x 1 Yellow Part 31000 Element 4225981 or 4142221 ×17
  • Primo Brick 1 x 2 Yellow Part 31001 Element 4142225 or 4112260 ×2
  • Primo Brick 1 x 3 Yellow Part 31002 Element 4144112 or 4112254 ×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.