BlockTalk Find Your Set

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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.

Medium Basic Set

Checking

2-11 Medium Basic Set

130 pieces in 26 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.

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Piece checklist

Bricks 87 pieces

  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×3
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×8
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×15
  • Brick 2 x 3 without Cross Supports White Part 3002a ×10
  • Brick 2 x 4 without Cross Supports White Part 3001a ×22
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×1
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×14
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×2
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×11
  • Brick 2 x 8 Yellow Part 3007 Element 4639693 or 300724 ×1

Bricks Sloped 16 pieces

  • Brick Sloped 33° 2 x 2 Double Red Part 3300 Element 330021 ×1
  • Brick Sloped 33° 2 x 4 Double Red Part 3299 Element 329921 ×3
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×4
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×8

Windows and Doors 11 pieces

  • Minitalia Window 1 x 4 x 3 with 12 Panes Black Part 3853mi ×3
  • Minitalia Window 1 x 6 x 3 Panorama with 12 Panes Black Part 604mi ×1
  • Minitalia Window 1 x 2 x 3 Shutter Green Part 3856mi ×6
  • Minitalia Door 1 x 4 x 5 with 9 Panes White Part 3861mi ×1

Bars, Ladders and Fences 5 pieces

  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×5

Plants & Trees 5 pieces

  • Plant, Flower Stem Green Part 3741 Element 6277589 or 374128 ×1
  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×1
  • Plant, Flower - Small Red Part 3742 1 spare in the box ×3

Bricks Curved 4 pieces

  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside White Part 3307 Element 330701 ×2
  • Brick Arch 1 x 4 Yellow Part 3659 Element 6310246 or 4280126 ×2

Baseplates 1 piece

  • Baseplate 16 x 24 with Rounded Corners Green Part 455 ×1

Plates 1 piece

  • Plate 6 x 10 Red Part 3033 Element 6509008 or 6249097 ×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.

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