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The Workshop Sheet 10 of 19

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Cerebro

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5009015 Cerebro

150 pieces in 53 part and color combinations, plus 1 minifigure.

The official 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.

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.

  • Brick Curved 2 x 2 x 2/3 Dark Blue ×4 Black ×1 Dark Blue is bluer and lighter than Black.
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Piece checklist

Light Bluish Gray 73 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×1
  • Brick 2 x 3 Light Bluish Gray Part 3002 Element 4211386 ×2
  • Brick 2 x 8 Light Bluish Gray Part 3007 Element 6037399 or 4211391 ×1
  • Brick Arch 1 x 3 x 3 [Gothic] Light Bluish Gray Part 13965 Element 6225228 ×2
  • Brick Arch 1 x 8 x 2 Raised Light Bluish Gray Part 16577 Element 6313653 or 6079722 ×2
  • Brick Curved 2 x 1 with Inverted Cutout Light Bluish Gray Part 78666 Element 6396791 ×4
  • Brick Sloped 45° 2 x 3 Light Bluish Gray Part 3038 Element 4211773 ×2
  • Brick Special 1 x 1 x 3 with 2 Clips Vertical [Hollow Stud, Open O Clips] Light Bluish Gray Part 60583b Element 6320356 or 6008364 ×4
  • Brick Wedged 2 x 2 Facet Light Bluish Gray Part 87620 Element 4651063 ×2
  • Brick Wedged, Sloped 45° 2 x 2 Corner Light Bluish Gray Part 13548 Element 6034676 ×2
  • Equipment Medical Wheelchair with Clips for Wheels Light Bluish Gray Part 24312 Element 6587047 or 6297209 ×1
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Light Bluish Gray Part 44568 Element 6276045 or 4211840 ×4
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 2 spares in the box ×6
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×5
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×3
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×2
  • Plate Round 8 x 8 Light Bluish Gray Part 74611 Element 6353794 ×3
  • Plate Round Corner 6 x 6 Light Bluish Gray Part 6003 Element 6368430 or 4580982 ×4
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×9
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×4
  • Tile 4 x 4 Curved, Macaroni Light Bluish Gray Part 27507 Element 6458164 or 6163989 ×4
  • Wedge Plate 2 x 4 Light Bluish Gray Part 51739 Element 4507056 or 4252368 ×4

Black 23 pieces

  • Arm Skeleton [Bent / 2 Clips] Black Part 93609 Element 6326681 or 6146095 ×2
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×3
  • Brick 2 x 4 Black Part 3001 Element 300126 ×3
  • Brick 2 x 4 with White 'CEREBRO' Print Black Part 3001pr9981 Element 6545530 ×1
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 Also in Dark Blue ×1
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs Black Part 48092 Element 6252902 or 6173190 ×4
  • Plate Round Corner 6 x 6 Black Part 6003 Element 6137779 or 4496676 ×4
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×3
  • Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1
  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×1

Dark Bluish Gray 11 pieces

  • Brick 1 x 8 Dark Bluish Gray Part 3008 Element 4211099 ×1
  • Hinge Plate 3 x 4 Locking Dual 2 Finger, 7 Teeth Dark Bluish Gray Part 50337 Element 6266281 ×4
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate Round 4 x 4 with Pin Hole Dark Bluish Gray Part 60474 Element 4528323 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Dark Bluish Gray Part 48336 Element 6146321 ×3

Dark Blue 9 pieces

  • Brick Curved 2 x 2 x 2/3 Dark Blue Part 15068 Element 6554196 or 6061569 Also in Black ×4
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Blue Part 18674 Element 6253885 ×1
  • Tile 3 x 3 Curved, Macaroni Dark Blue Part 79393 Element 6554229 or 6446696 ×4

Trans-Dark Blue 9 pieces

  • Tile 1 x 4 with Groove Trans-Dark Blue Part 2431 Element 6510179 or 6252050 ×9

Dark Tan 7 pieces

  • Brick Curved Inverted 2 x 2 x 2/3 Dark Tan Part 32803 Element 6356427 ×1
  • Brick Curved Inverted 4 x 1 Dark Tan Part 13547 Element 6271979 ×6

Dark Azure 6 pieces

  • Tile 4 x 4 Curved, Macaroni Dark Azure Part 27507 Element 6458168 or 6199902 ×6

Trans-Clear 4 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Clear Part 3941 Element 6514281 or 6273152 ×2
  • Wheel Wheelchair with Fixed Black Hard Rubber Tire, with Clip Hole Trans-Clear Part 24314c01 Element 6503208 or 6342135 ×2

Medium Blue 3 pieces

  • Plate 1 x 2 Medium Blue Part 3023 Element 4179825 or 4165460 ×3

Trans-Light Blue 2 pieces

  • Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 1 spare in the box ×1
  • Tile Special 2 x 3 with 2 Clips with Computer Monitor, Jubilee Print Trans-Light Blue Part 65886pr9998 Element 6545556 ×1

Lime 1 piece

  • Plate Round Half 3 x 6 with 1 x 2 Cutout Lime Part 18646 Element 6109765 ×1

Medium Azure 1 piece

  • Plate Round 6 x 6 with Hole Medium Azure Part 11213 Element 6029690 ×1

White 1 piece

  • Brick Round 4 x 4 Centre Hole White Part 87081 Element 6619304 or 4558956 ×1

Minifigures 1 figure

  • Professor Charles Xavier, Black Suit 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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