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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.

Kraang Lab Escape

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79100 Kraang Lab Escape

83 pieces in 46 part and color combinations, plus 2 minifigures.

The official piece count includes the 7 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.

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Piece checklist

Light Bluish Gray 19 pieces

  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×1
  • Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×3
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Light Bluish Gray Part 60475b Element 6345426 or 4533772 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×1
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round 4 x 4 with Pin Hole Light Bluish Gray Part 60474 Element 4515351 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Light Bluish Gray Part 3839b Element 4211464 ×1
  • Plate Special 2 x 2 with Pin on Bottom Light Bluish Gray Part 2476a Element 6276848 or 4237084 ×1
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×1

Dark Purple 16 pieces

  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×3
  • Plate 2 x 3 Dark Purple Part 3021 Element 4225142 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Purple Part 6141 Element 4566522 1 spare in the box ×11
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Purple Part 87580 Element 6446090 or 6126086 ×1

Dark Bluish Gray 13 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×3
  • Brick Special 1 x 2 with Pin Dark Bluish Gray Part 2458 Element 4211087 ×2
  • Chain 6L [5 Links] Dark Bluish Gray Part 92338 Element 6311445 or 4600437 ×1
  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°] Dark Bluish Gray Part 4285b Element 4224253 ×1
  • Hinge Tile 1 x 4 Locking Dual 1 Fingers on Top [8 Locking Ridges] Dark Bluish Gray Part 95120 Element 4622569 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×2
  • Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×2

Flat Silver 8 pieces

  • Large Figure Weapon Claw, with Clip Flat Silver Part 92220 Element 6214125 or 4659335 ×4
  • Plate Special 2 x 2 with Bar Frame Octagonal, Reinforced, Completely Round Studs Flat Silver Part 75937 Element 6020990 ×1
  • Tile Round 1 x 1 with Gauge and Red Pointer Print Flat Silver Part 98138pr0012 Element 6287877 or 6030333 1 spare in the box ×2
  • Weapon Mace / Flail Spiked Flat Silver Part 59232 Element 4611880 ×1

Trans-Neon Green 7 pieces

  • Antenna 1 x 4 with Rounded Top Trans-Neon Green Part 3957a ×4
  • Brick Round 2 x 2 with Axle Hole Trans-Neon Green Part 3941 Element 6273157 or 611649 ×1
  • Cone 1 x 1 [Top Groove] Trans-Neon Green Part 59900 Element 6301321 or 6172230 ×2

Black 5 pieces

  • Plate Special 1 x 2 with Clip Horizontal on End Black Part 63868 Element 6336989 or 4535739 ×2
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1
  • Technic Plate 2 x 6 [5 Holes] Black Part 32001 Element 3200126 ×1
  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×1

White 4 pieces

  • Brick Sloped 45° 2 x 2 with Green Radar, Green/Red Buttons and Disk Slot Print White Part 3039pr0002 Element 4195659 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1

Dark Pink 2 pieces

  • Creature, The Kraang Dark Pink Part 12608pr0001 Element 6024972 ×1
  • Minifig Head [Plain] [Hollow Stud] Dark Pink Part 3626c Element 6368254 or 6029725 ×1

Red 2 pieces

  • Lever Small Base with Black Lever Red Part 298c02 Element 74335 1 spare in the box ×1
  • Panel 1 x 2 x 1 [Rounded Corners] Red Part 4865b Element 6146217 or 486521 ×1

Reddish Brown 2 pieces

  • Hose Rigid 3mm D. 3L / 2.4cm Reddish Brown Part 75c03 Element 6030330 1 spare in the box ×2

Trans-Clear 2 pieces

  • Cylinder Half 2 x 4 x 5 with 1 x 2 cutout Trans-Clear Part 85941 Element 6514134 or 6246876 ×1
  • Windscreen 6 x 6 x 3 Canopy Half Sphere with Dual 2 Fingers Trans-Clear Part 50747 Element 4624369 or 4530764 ×1

Trans-Red 2 pieces

  • Cone 1 x 1 [Top Groove] Trans-Red Part 59900 Element 6514021 or 6337596 ×2

Yellow 1 piece

  • Tile Round 2 x 2 with Pizza Print Yellow Part 4150pr0015 Element 81867 ×1

Minifigures 2 figures

  • Michelangelo with Big Smile Minifigure, checked as a whole figure ×1
  • Foot Soldier 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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