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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.

Cyber Explorers

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EG00002 Cyber Explorers

200 pieces in 80 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.

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Piece checklist

Plates Special 36 pieces

  • Bracket 1 x 1 - 1 x 1 Black Part 36841 Element 6299338 ×3
  • Bracket 1 x 2 - 2 x 2 Inverted Black Part 99207 Element 6000650 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Black Part 60470b Element 6310268 or 4556158 ×1
  • Plate Special 1 x 2 with Pin Hole Underneath Black Part 18677 Element 6192309 or 6167497 ×1
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) Black Part 34103 Element 6199908 ×1
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Black Part 32828 Element 6196548 ×4
  • Bracket 1 x 1 - 1 x 1 Inverted Dark Bluish Gray Part 36840 Element 6225494 ×2
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×2
  • Plate Special 1 x 2 with 5.9mm Towball Socket and Towball Dark Bluish Gray Part 14419 Element 6414554 or 6338166 ×3
  • Bracket 1 x 1 - 1 x 1 Inverted Light Bluish Gray Part 36840 Element 6335328 ×2
  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Light Bluish Gray Part 61252 Element 6335378 or 4541978 ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×1
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×6
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Lime Part 15573 Element 6092592 ×3

Tiles Round and Curved 33 pieces

  • Tile Round 1 x 1 Half Circle Green Part 24246 Element 6250600 or 6174154 ×6
  • Tile Round 1 x 1 with Gauge Print Light Bluish Gray Part 98138pr0186 Element 6329581 ×1
  • Tile Round 2 x 2 with Bottom Stud Holder Light Bluish Gray Part 14769 Element 6052200 ×1
  • Tile Round 1 x 1 Reddish Brown Part 98138 Element 6284586 or 6133854 ×5
  • Tile Round 1 x 1 Trans-Dark Pink Part 98138 Element 6514196 or 6274745 ×1
  • Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 ×2
  • Tile Round 1 x 1 White Part 98138 Element 6564903 or 6284572 ×3
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 ×8
  • Tile Round 2 x 2 with Bottom Stud Holder White Part 14769 Element 6601846 or 6044691 ×2
  • Tile Round 1 x 1 Yellow Part 98138 Element 6284577 or 6070714 ×4

Plates Round Curved and Dishes 32 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 Also in Dark Bluish Gray ×2
  • Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 Also in Black ×10
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×1
  • Plate Round Half 4 x 8 Medium Azure Part 22888 Element 6138571 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Light Blue Part 4740 Element 6580378 or 6245307 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×1

Plates 24 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×1
  • Plate 1 x 4 Green Part 3710 Element 371028 ×3
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2
  • Plate 1 x 1 Reddish Brown Part 3024 Element 4221744 ×3
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×1
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×3
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×3
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×1
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×1

Bricks Round and Cones 17 pieces

  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×2
  • Cone 1 x 1 [Top Groove] Blue Part 59900 Element 4529235 ×4
  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×3
  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×4
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×4

Tiles 14 pieces

  • Tile 1 x 1 with Gauge Print Light Bluish Gray Part 3070bpr0235 Element 6329584 ×1
  • Tile 1 x 1 with Keypad, Blue Slit, Red Button Print Light Bluish Gray Part 3070bpr0234 Element 6329583 ×1
  • Tile 1 x 1 with Groove Lime Part 3070b Element 4537251 ×4
  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 ×4
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 ×2

Plants & Trees 7 pieces

  • Plant, Carrot Top Bright Green Part 33183 Element 4119479 ×1
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Lime Part 24866 Element 6209692 ×4
  • Plant, Grass Stem with Bar Hole [3.2mm] Lime Part 15279 Element 6188696 or 6055510 ×2

Technic Pins 7 pieces

  • Technic Pin with Friction Ridges Lengthwise and Towball - Round Pin Hole Black Part 66906 Element 6344752 ×5
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 ×2

Bricks Sloped 6 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Reddish Brown Part 54200 Element 4504376 or 4260486 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 ×2

Tiles Special 6 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×1
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Pearl Gold Part 99563 Element 6207933 or 4651407 ×2
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] White Part 99563 Element 6601943 or 6210076 ×3

Bricks Curved 5 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Blue Part 11477 Element 6055065 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×3

Technic Bricks 5 pieces

  • Technic Brick 1 x 1 with Pin Hole Light Bluish Gray Part 6541 Element 4211535 ×5

Technic Connectors 4 pieces

  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge] Black Part 65487 Element 6282140 ×2
  • Technic Pin Connector Round [Slotted] White Part 62462 Element 6550164 or 6173116 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Light Bluish Gray Part 1927 Element 6416524 ×2

Bars, Ladders and Fences 1 piece

  • Bar 6L with Stop Ring Black Part 63965 Element 6170421 or 6081988 ×1

Minifig Accessories 1 piece

  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 ×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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