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.

Basic Set

Checking

6-3 Basic Set

338 pieces in 51 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.

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

Red 115 pieces

  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 2 x 10 Red Part 3006 Element 4617857 or 300621 ×2
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×12
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×46
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×2
  • Brick Sloped 33° 2 x 2 Double Red Part 3300 Element 330021 ×2
  • Brick Sloped 33° 2 x 4 Double Red Part 3299 Element 329921 ×3
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×10
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×12
  • Door 1 x 3 x 4 with Glass Red Part 7930 ×2
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×8
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Red Part 3081c01 Element 7026 ×4
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] Red Part 453cc01 ×3
  • Window 1 x 6 x 3 Panorama with Glass and Hollow Studs Red Part 604c01 ×1

White 93 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×16
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2
  • Brick 2 x 10 White Part 3006 Element 4617855 or 300601 ×2
  • Brick 2 x 2 without Inside Ridges White Part 3003a Also in Trans-Clear ×12
  • Brick 2 x 3 without Cross Supports White Part 3002a ×8
  • Brick 2 x 4 without Cross Supports White Part 3001a Also in Trans-Clear ×44
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×2
  • Brick Special 1 x 1 x 2 with Shutter Holder White Part 3581 Element 358101 ×2
  • Door Frame 1 x 3 x 4 White Part 3579 ×1
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] White Part 3081c01 Element 73594 ×2
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] White Part 453cc01 ×2

Yellow 48 pieces

  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×10
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×2
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×4
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×16
  • Brick 2 x 8 Yellow Part 3007 Element 4639693 or 300724 ×1
  • Brick Special 1 x 1 x 2 with Shutter Holder Yellow Part 3581 Element 4189055 or 358124 ×4
  • Door Frame 1 x 3 x 4 Yellow Part 3579 ×1

Black 40 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×4
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×18
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×4
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Tyre Smooth Old Style - Small Black Part 132a ×8

Blue 30 pieces

  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×6
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×16
  • Door 1 x 3 x 4 Left Blue Part 3193 ×1
  • Door 1 x 3 x 4 Right Blue Part 3192 ×1
  • Window 1 x 2 x 2 Shutter Blue Part 3582 Element 358223 ×6

Trans-Clear 10 pieces

  • Brick 2 x 2 without Inside Ridges Trans-Clear Part 3003a Also in White ×4
  • Brick 2 x 4 without Cross Supports Trans-Clear Part 3001a Also in White ×6

Green 2 pieces

  • Brick 10 x 20 with Bottom Tubes in single row around edge, with '+' Cross Support Green Part 700d ×2

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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