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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.

Avengers Tower

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40334 Avengers Tower

207 pieces in 70 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 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.

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

Plates 35 pieces

  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×1
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×4
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×6
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×4
  • Plate 1 x 1 Trans-Brown Part 3024 Element 6513960 or 6252039 1 spare in the box ×1
  • Plate 1 x 2 Trans-Brown Part 3023 Element 6514006 or 6240219 ×7
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×4

Tiles Special 34 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×32

Bricks Sloped 29 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Dark Bluish Gray Part 61409 Element 4540386 or 4521185 ×10
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box Also in Trans-Brown ×4
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Light Bluish Gray Part 15672 Element 6093859 ×8
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Brown Part 54200 Element 6245263 or 4244368 1 spare in the box Also in Dark Bluish Gray ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Dark Blue Part 54200 Element 6245256 or 4244366 1 spare in the box ×1

Plates Special 28 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×1
  • Plate Special 2 x 2 with Only 2 studs Black Part 33909 Element 6192346 ×2
  • Plate Special Round 8 x 8 with 2 x 2 Center Studs with Groove Black Part 6177b Element 4205860 or 617726 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Dark Bluish Gray Part 48336 Element 6146321 ×1
  • Plate Special 1 x 2 with Clip Horizontal on End Dark Bluish Gray Part 63868 Element 6336990 or 4581225 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Dark Bluish Gray Part 3176 Element 4225733 ×1
  • Bracket 1 x 2 - 2 x 2 Dark Turquoise Part 44728 Element 6429966 or 6249425 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×2
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×1
  • Plate Special 2 x 2 with Only 2 studs Light Bluish Gray Part 33909 Element 6212077 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Light Bluish Gray Part 99206 Element 4654577 ×5
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Tan Part 99206 Element 6132769 ×4
  • Bracket 1 x 2 - 2 x 4 Yellow Part 93274 Element 6118828 or 4613344 ×2

Bricks Special 17 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×1
  • Brick Special 1 x 4 with 4 Studs on One Side Blue Part 30414 Element 4212411 or 4141768 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Dark Bluish Gray Part 11211 Element 6230233 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side Green Part 11211 Element 6129807 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×2
  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×1
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Reddish Brown Part 32952 Element 6201911 ×4
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Tan Part 22885 Element 6214334 ×4

Bricks Curved 15 pieces

  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×12
  • Brick Arch 1 x 3 x 2 Dark Bluish Gray Part 88292 Element 6186635 or 4568954 ×2
  • Brick Arch 1 x 4 Dark Bluish Gray Part 3659 Element 4210999 ×1

Plates Round Curved and Dishes 14 pieces

  • Plate Round 1 x 1 with Solid Stud Bright Pink Part 6141 Element 4517996 2 spares in the box ×6
  • Plate Round 4 x 4 with Pin Hole Dark Bluish Gray Part 60474 Element 4528323 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×1
  • Plate Round Corners 2 x 6 Double Light Bluish Gray Part 18980 Element 6105964 ×4
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Trans-Clear Part 2654 Element 6581772 or 6163901 ×1

Bricks 13 pieces

  • Brick 1 x 2 x 2 with Inside Stud Holder Dark Bluish Gray Part 3245c Element 4210978 ×4
  • Brick 1 x 2 x 5 with Hollow Studs Dark Bluish Gray Part 2454b Element 4211075 ×2
  • Brick 2 x 2 Medium Azure Part 3003 Element 6603316 or 4653970 ×4
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2

Plates Wedged 6 pieces

  • Wedge Plate 2 x 2 Cut Corner Dark Bluish Gray Part 26601 Element 6164073 ×2
  • Wedge Plate 6 x 3 Left Light Bluish Gray Part 54384 Element 4282789 ×2
  • Wedge Plate 6 x 3 Right Light Bluish Gray Part 54383 Element 4282786 ×2

Bricks Round and Cones 5 pieces

  • Cylinder Half 2 x 4 x 4 Dark Bluish Gray Part 6259 Element 6106025 or 4533334 ×3
  • Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout Light Bluish Gray Part 24593 Element 6249550 or 6134782 ×1
  • Brick Round 1 x 1 Open Stud Trans-Light Blue Part 3062b Element 6514238 or 6238677 ×1

Tiles Round and Curved 3 pieces

  • Tile Round 2 x 2 with 'A' Avengers Symbol Print Dark Bluish Gray Part 14769pr1131 Element 6258005 ×2
  • Tile Round 2 x 2 with Bottom Stud Holder Dark Bluish Gray Part 14769 Element 6056296 or 4620079 ×1

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Gun / Blaster Small Pearl Titanium Part 17010 Element 6178950 or 6078586 ×2

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Flat Top Trans-Clear Part 3957b Element 6514014 or 6166111 ×1

Containers 1 piece

  • Bucket 1 x 1 x 1 Handle Dark Bluish Gray Part 95344 Element 6245283 or 6167664 1 spare in the box ×1

Minifig Headwear 1 piece

  • Helmet Space with Open Face Rounded, Top Hinge Dark Red Part 10907 Element 6008350 ×1

Minifig Headwear Accessories 1 piece

  • Headwear Accessory Visor Top Hinge with Gold Face Shield, Black Lines on Forehead and White Eyes Print (Iron Man) Dark Red Part 10908pr0006 Element 6215693 or 6107539 ×1

Panels 1 piece

  • Panel 1 x 2 x 1 [Rounded Corners] Black Part 4865b Element 6146220 ×1

Tiles 1 piece

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1

Minifigures 1 figure

  • Tony Stark Transforming into Iron Man, Black Torso 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.

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