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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.

Level Three - Kit 9, The Dark Lair

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20208 Level Three - Kit 9, The Dark Lair

183 pieces in 77 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

Bricks Sloped 57 pieces

  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud Black Part 4460b Element 446026 ×9
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 Also in Dark Bluish Gray ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×4
  • Brick Sloped 33° 3 x 1 Dark Bluish Gray Part 4286 Element 4211045 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×5
  • Brick Sloped 45° 2 x 2 Dark Bluish Gray Part 3039 Element 4211054 ×4
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Dark Bluish Gray Part 3684 Element 4286876 or 4210696 ×2
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 Also in Black ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×7
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Reddish Brown Part 54200 Element 4504376 or 4260486 1 spare in the box ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×16

Plates 39 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×2
  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 4 x 12 Black Part 3029 Element 302926 ×1
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 ×4
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×7
  • Plate 6 x 8 Dark Bluish Gray Part 3036 Element 4210794 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×1
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×3
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×2
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 ×7

Bricks 11 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×3
  • Brick 1 x 3 Black Part 3622 Element 362226 ×1
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×2
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×1
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×2
  • Brick 1 x 1 Trans-Orange Part 3005 Element 6514209 or 6240550 ×1

Plates Special 10 pieces

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 ×4
  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×2
  • Plate Special 1 x 8 with Door Rail Light Bluish Gray Part 4510 Element 4211498 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Orange Part 3794a Element 4189124 or 4159973 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Reddish Brown Part 3794a ×1

Technic Bricks 10 pieces

  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×4
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Bluish Gray Part 32064a Element 6178919 or 4210935 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Light Bluish Gray Part 3701 Element 4211441 ×4

Bricks Special 8 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Special 1 x 1 x 3 with 2 Clips Vertical [Solid Stud, Thick U Clips] Black Part 60583a ×2
  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×2
  • Brick Special 1 x 1 with Clip Vertical [Thick U Clip, Solid Stud] Light Bluish Gray Part 60475a Element 4515357 ×2
  • Brick Special 1 x 2 with Pin Light Bluish Gray Part 2458 Element 4211364 ×1

Bricks Round and Cones 7 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×4
  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×1
  • Brick Round 1 x 1 Open Stud Trans-Dark Blue Part 3062b Element 6514233 or 6238044 ×2

Plates Round Curved and Dishes 6 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Tiles 6 pieces

  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×4

Bricks Curved 4 pieces

  • Brick Arch 1 x 5 x 4 [Continuous Bow] Black Part 2339 Element 4519925 or 4159140 ×2
  • Brick Arch 1 x 6 Raised Arch Black Part 92950 Element 4620763 ×2

Minifig Accessories 4 pieces

  • Equipment Hose Nozzle / Gun with Side String Hole Simplified Black Part 60849 Element 6641462 or 4537551 ×1
  • Tap 1 x 1 without Hole in Spout Black Part 4599b Element 459926 ×2
  • Equipment Goblet / Glass Pearl Gold Part 2343 Element 4505990 ×1

Animals / Creatures 3 pieces

  • Insect, Spider Black Part 30238 Element 4113209 ×2
  • Animal, Frog Green Part 33320 Element 6171101 or 4157270 ×1

Rock 3 pieces

  • Rock Panel 2 x 4 x 6 Dark Bluish Gray Part 47847 Element 4513326 ×3

Technic Pins 3 pieces

  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×1

Technic Beams 2 pieces

  • Technic Beam 1 x 11 Thick Black Part 32525 Element 6029578 or 4534909 ×1
  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×1

Windows and Doors 2 pieces

  • Door 1 x 4 x 6 Barred with Stud Handle Light Bluish Gray Part 60621 Element 4610149 or 4519882 ×1
  • Door Frame 1 x 4 x 6 Type 2 White Part 60596 Element 6262945 or 4541956 ×1

Bars, Ladders and Fences 1 piece

  • Bar 1L with Top Stud and Two Side Studs Light Bluish Gray Part 92690 Element 4640844 or 4600518 ×1

Minifig Headwear 1 piece

  • Helmet, Standard Black Part 2446 Element 6020155 or 4654642 ×1

Minifig Headwear Accessories 1 piece

  • Headwear Accessory Visor / Diver's Mask Trans-Light Blue Part 30090 Element 6244761 or 4569133 1 spare in the box ×1

Minifig Neckwear 1 piece

  • Minifig Neckwear Bracket [One Stud] Dark Bluish Gray Part 42446 Element 4210469 ×1

Plants & Trees 1 piece

  • Plant, Leaves 4 x 3 Green Part 2423 Element 6268814 or 242328 ×1

Technic Axles 1 piece

  • Technic Axle 12 Black Part 3708 Element 370826 ×1

Technic Bushes 1 piece

  • Technic Bush Red Part 3713 Element 6271820 or 4227155 ×1

Tubes and Hoses 1 piece

  • Flexible Hose 8.5L with Tabless Ends (Fixed Ends same color as Tube) Black Part 73590c03a Element 6327402 or 6288582 ×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.