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.

Promo Basic Set

Checking

1910 Promo Basic Set

88 pieces in 22 part and color combinations.

LEGO counts 82 pieces. This inventory comes from a separate parts catalog and lists 88; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Bricks 77 pieces

  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×6
  • Brick 2 x 3 without Cross Supports Blue Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×8
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×2
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×6
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×8
  • Brick 4 x 12 Red Part 4202 Element 4140752 or 420221 ×1
  • Brick 2 x 4 without Cross Supports Trans-Clear Part 3001a Also in White ×2
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×6
  • Brick 2 x 3 without Cross Supports White Part 3002a ×4
  • Brick 2 x 4 without Cross Supports White Part 3001a Also in Trans-Clear ×8
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×6
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×8

Wheels and Tyres 6 pieces

  • Brick Special 2 x 4 with Wheels, Freestyle Red Black Part 4180c02 ×2
  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×4

Windows and Doors 4 pieces

  • Door Frame 2 x 4 x 5 Red Part 4130 ×1
  • Window 2 x 4 x 3 Frame with Solid Studs Red Part 4132 Element 413221 ×1
  • Door 1 x 4 x 5 Yellow Part 4131 Element 4521099 ×1
  • Window 2 x 4 x 3 Pane Yellow Part 4133 Element 4113170 or 4101806 ×1

Plants & Trees 1 piece

  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×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.