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.

United Nations Headquarters

Checking

21018 United Nations Headquarters

597 pieces in 78 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.

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Piece checklist

White 210 pieces

  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×2
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×15
  • Brick Special 1 x 2 with Grille White Part 2877 Element 6552093 or 287701 ×6
  • Dish 3 x 3 Inverted [Radar] White Part 43898 Element 4179580 ×1
  • Lever Small Base with White Lever White Part 298c04 Element 6046019 or 4585623 1 spare in the box ×19
  • Panel 1 x 1 x 1 Corner White Part 6231 Element 6619293 or 623101 ×4
  • Panel 1 x 2 x 1 [Rounded Corners] White Part 4865b Element 6552161 or 6146215 ×9
  • Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] White Part 15207 Element 6552215 or 6514504 ×3
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×18
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×15
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×3
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×13
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×7
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×6
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) White Part 3794b ×5
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×3
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×3
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×22
  • Tile 1 x 3 White Part 63864 Element 6552134 or 6548270 ×19
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×2
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×6
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×5
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×11
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×4

Trans-Light Blue 183 pieces

  • Plate 1 x 1 Trans-Light Blue Part 3024 Element 6513964 or 6252043 1 spare in the box ×13
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×155
  • Tile 1 x 1 with Groove Trans-Light Blue Part 3070b Element 6514261 or 6254256 1 spare in the box ×2
  • Tile 1 x 2 with Groove Trans-Light Blue Part 3069b Element 6514224 or 6251295 ×13

Light Bluish Gray 100 pieces

  • Bracket 1 x 2 - 2 x 2 Light Bluish Gray Part 44728 Element 6117967 or 6009014 ×6
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×8
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×1
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×22
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×18
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×5
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×6
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×7
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×12
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×2
  • Tile Round 1 x 1 Light Bluish Gray Part 98138 Element 6284071 or 4650260 1 spare in the box ×2
  • Turntable 4 x 4 Square Base, Locking Light Bluish Gray Part 61485 Element 6045718 or 4523670 ×1

Black 40 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 ×6
  • Plate 2 x 12 Black Part 2445 Element 244526 ×6
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×3
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×6
  • Tile 1 x 8 with "Headquarters" Print Justified Left Black Part 4162pr0029 Element 6052208 ×1
  • Tile 1 x 8 with "United Nations" Print Black Part 4162pr0028 Element 6045721 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×7

Medium Blue 31 pieces

  • Plate 1 x 6 Medium Blue Part 3666 Element 4179829 ×2
  • Plate 2 x 4 Medium Blue Part 3020 Element 6302678 or 4650970 ×27
  • Tile 1 x 2 with Groove Medium Blue Part 3069b Element 4168345 ×2

Dark Bluish Gray 18 pieces

  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×2
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1
  • Brick 1 x 6 Dark Bluish Gray Part 3009 Element 4211100 ×1
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×2
  • Plate 8 x 16 Dark Bluish Gray Part 92438 Element 4654613 ×3
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×1
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×1
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×3
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×3
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×1

Dark Green 14 pieces

  • Tile 1 x 3 Dark Green Part 63864 Element 6618112 or 4650622 ×5
  • Tile 1 x 4 with Groove Dark Green Part 2431 Element 4543949 or 4248267 ×9

Orange 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×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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