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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.

Cosmic Creeper

Checking

6837 Cosmic Creeper

54 pieces in 38 part and color combinations, plus 1 minifigure.

LEGO counts 58 pieces. This inventory comes from a separate parts catalog and lists 59, including the 5 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.

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Piece checklist

Plates 10 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×1
  • Plate 2 x 12 Dark Gray Part 2445 Element 4112847 or 4112526 ×2
  • Plate 2 x 3 Dark Gray Part 3021 Element 4108041 or 302127 ×1
  • Plate 2 x 8 Dark Gray Part 3034 Element 303427 ×2

Wheels and Tyres 6 pieces

  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×2
  • Wheel 8 x 6 Blue Part 4624 Element 4114681 ×2
  • Wheel Hard Plastic Medium (35mm D. x 31mm) Blue Part 2593 Element 4112231 ×2

Plates Special 5 pieces

  • Plate Special 2 x 2 with Wheels Holder Wide Black Part 6157 Element 615726 ×1
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Blue Part 2436 Element 4282744 or 4189120 ×1
  • Plate Special 1 x 2 with 4 x 4 disk at 90 degrees Blue Part 30209 Element 4114691 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Blue Part 3839b Element 4286615 or 383923 ×1

Bricks Sloped 4 pieces

  • Brick Sloped 33° 3 x 2 with Insectoid Scope Print Dark Gray Part 3298pr0035 Element 4114638 ×1
  • Brick Sloped 45° 2 x 2 Dark Gray Part 3039 Element 4109984 ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Dark Gray Part 3747a Element 4112039 ×1

Hinges, Arms and Turntables 4 pieces

  • Arm Piece with Pin, 2 Fingers Black Part 6048a Element 604826 ×1
  • Arm Piece with Pin, 3 Fingers Black Part 6217 Element 4107590 or 4101774 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Brick 1 x 2 Base Blue Part 3937 Element 393723 ×1

Supports, Girders and Cranes 4 pieces

  • Support Leg Small [Insectoids] Dark Gray Part 30211 Element 4114696 ×4

Tiles Special 4 pieces

  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×1
  • Tile Special 1 x 2 with Handle Blue Part 2432 Element 243223 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Trans-Neon Green Part 2412b Element 4272661 or 4109766 ×2

Bricks Round and Cones 3 pieces

  • Dome Hemisphere 4 x 4 Multifaceted Trans-Green Part 30208 Element 4114687 ×2
  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×1

Plates Round Curved and Dishes 3 pieces

  • Dish 2 x 2 with Angled Bar Trans-Neon Green Part 6919 Element 4114694 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×2

Bricks Special 2 pieces

  • Brick Special 2 x 2 with Pin and Axle Hole Blue Part 6232 Element 4185578 or 4105150 ×2

Magnets and Holders 2 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×1
  • Magnet Holder 2 x 3 Dark Gray Part 2607 Element 4111984 ×1

Stickers 2 pieces

  • Sticker Sheet for Sets 2964-1, 2965-1, 5316-1, 6817-1, 6837-1, 6903-1, 6905-1, 6907-1, 6909-1, 6919-1, 6969-1, 6977-1 [No Color/Any Color] Part stickerupn0038 Element 4114700 ×2

Animal / Creature Accessories 1 piece

  • Animal / Creature Accessory, Horse Hitching, 1 x 2 Plate and 2 x 2 Plate [Studded] Blue Part 2397 Element 4112913 or 239723 ×1

Minifig Accessories 1 piece

  • Equipment Camera with Side Sight [aka Space Gun] Black Part 4360 Element 436026 ×1

Rock 1 piece

  • Rock 2 x 2 Crystal 3 Point Trans-Neon Green Part 30213 Element 4114434 ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Blue Part 3700 Element 370023 ×1

Tiles 1 piece

  • Tile 2 x 2 with Insectoid Logo in Triangle Print Black Part 3068bpr0353 Element 4114641 ×1

Minifigures 1 figure

  • Danny Longlegs / Corporal Steel with Black Shoulder Armor 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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