BlockTalk Find Your Set

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.

Teacher's Day

Checking

40404 Teacher's Day

43 pieces in 19 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 Special 10 pieces

  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Bright Light Orange Part 26604 Element 6292415 ×4
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×4
  • Brick Special 1 x 2 with Studs on 2 Sides White Part 52107 Element 6548274 or 4667575 ×2

Plates 7 pieces

  • Plate 1 x 2 Red Part 3023 Element 302321 ×4
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1

Bricks Curved 5 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Green Part 11477 Element 6047426 ×1
  • Brick Curved 2 x 2 x 2/3 Red Part 15068 Element 6105976 ×4

Bricks Round and Cones 5 pieces

  • Brick Round 1 x 1 Open Stud Lime Part 3062b Element 4212454 ×4
  • Cone 1 x 1 [Top Groove] Tan Part 59900 Element 4529237 ×1

Tiles 5 pieces

  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×1
  • Tile 2 x 3 Blue Part 26603 Element 6196596 ×4

Bricks Sloped 4 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Red Part 85984 Element 4651524 ×4

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Bright Pink Part 6141 Element 4517996 1 spare in the box ×1
  • Plate Round 1 x 1 with Solid Stud Flat Silver Part 6141 Element 4633691 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×1

Bars, Ladders and Fences 1 piece

  • Bar 6L with Stop Ring Black Part 63965 Element 6170421 or 6081988 ×1

Bricks 1 piece

  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×1

Plates Special 1 piece

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy