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.

Basic Set

Checking

5-3 Basic Set

330 pieces in 52 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.

Show

Piece checklist

Bricks 279 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×10
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×3
  • Brick 2 x 3 without Cross Supports Black Part 3002a ×3
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×13
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×8
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×8
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×4
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×4
  • Brick 10 x 20 with Bottom Tubes in single row around edge, with '+' Cross Support Green Part 700d ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×4
  • Brick 1 x 4 Red Part 3010 Element 301021 ×4
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2
  • Brick 1 x 8 Red Part 3008 Element 300821 ×2
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×16
  • Brick 2 x 4 without Cross Supports Red Part 3001a ×34
  • Brick 2 x 8 Red Part 3007 Element 6036408 or 300721 ×2
  • Brick 1 x 2 Trans-Clear Part 3004 Element 4256587 or 300410 Also in White ×6
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×14
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 Also in Trans-Clear ×10
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×2
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×2
  • Brick 2 x 10 White Part 3006 Element 4617855 or 300601 ×2
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×14
  • Brick 2 x 3 without Cross Supports White Part 3002a ×6
  • Brick 2 x 4 without Cross Supports White Part 3001a ×34
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×4
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×2
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×2
  • Brick 2 x 10 Yellow Part 3006 Element 6119276 or 6073100 ×2
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×4
  • Brick 2 x 3 without Cross Supports Yellow Part 3002a ×8
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×34

Windows and Doors 17 pieces

  • Door 1 x 3 x 4 with Glass Blue Part 7930 ×2
  • Window 1 x 2 x 2 Shutter Blue Part 3582 Element 358223 ×4
  • Door Frame 1 x 3 x 4 Red Part 3579 ×2
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Red Part 3081c01 Element 7026 ×2
  • Window 1 x 4 x 2 Classic with Short Sill [Complete] Red Part 453cc01 ×2
  • Window 1 x 6 x 3 Panorama with Glass and Hollow Studs Red Part 604c01 ×1
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] White Part 3081c01 Element 73594 ×4

Wheels and Tyres 15 pieces

  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×3
  • Tyre Smooth Old Style - Small Black Part 132a ×6
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×6

Bricks Sloped 7 pieces

  • Brick Sloped 33° 2 x 4 Double Red Part 3299 Element 329921 ×1
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×6

Plates 7 pieces

  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×4
  • Plate 4 x 6 White Part 3032 Element 303201 ×3

Bricks Special 4 pieces

  • Brick Special 1 x 1 x 2 with Shutter Holder White Part 3581 Element 358101 ×4

Bricks Curved 1 piece

  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Red Part 3307 Element 330721 ×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.