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.

Systematic Creativity Toolbox

Checking

4000004 Systematic Creativity Toolbox

44 pieces in 30 part and color combinations, plus 1 minifigure.

The piece count includes the 3 parts inside the set's minifigures, which this inventory lists separately. 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.

Show

Piece checklist

Bricks 18 pieces

  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×2
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×2
  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×2
  • Brick 2 x 2 Green Part 3003 Element 300328 ×1
  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×1
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Red Part 3065 Element 6514263 or 6244905 ×2
  • Brick 1 x 1 with Simple Black Eye with White Pupil Print Yellow Part 3005pr0003 Element 4569076 ×2

Bricks Sloped 7 pieces

  • Brick Sloped 33° 3 x 1 Dark Bluish Gray Part 4286 Element 4211045 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Bluish Gray Part 4287b ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×2
  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 ×1

Plates 7 pieces

  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate 2 x 3 Orange Part 3021 Element 4125278 ×1
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×1
  • Plate 1 x 10 Tan Part 4477 Element 4143409 or 447705 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×2

Bricks Curved 3 pieces

  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×2
  • Brick Curved 2 x 3 Yellow Part 6215 Element 621524 ×1

Plants & Trees 2 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Trans-Dark Pink Part 4728 Element 4142898 ×1

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×1

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Trans-Yellow Part 3941 Element 6514285 or 6273155 ×1

Bricks Special 1 piece

  • Brick Special 1 x 2 with Pin Dark Bluish Gray Part 2458 Element 4211087 ×1

Flags, Banners and Signs 1 piece

  • Flag 4 x 1 Wavy [First Wave Right] Green Part 4495b Element 6268947 or 449528 ×1

Plates Special 1 piece

  • Plate Special 1 x 2 with Ladder Dark Bluish Gray Part 4175 Element 6285244 or 6179567 ×1

Tiles Special 1 piece

  • Tile Special 2 x 2 with Top Pin Dark Bluish Gray Part 2460 Element 4211129 ×1

Transportation - Sea and Air 1 piece

  • Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Black Part 2479 Element 247926 ×1

Minifigures 1 figure

  • Woman, Blue Torso with White Arms, White Legs, Red Lips Minifigure, checked as a whole figure ×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