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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 One - Kit 1, Space Designer

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20200 Level One - Kit 1, Space Designer

174 pieces in 69 part and color combinations, plus 1 minifigure.

LEGO counts 178 pieces. This inventory comes from a separate parts catalog and lists 179, 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.

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

White 48 pieces

  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×3
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2
  • Brick Arch 1 x 6 x 3 1/3 Curved Top White Part 6060 Element 6185956 or 6077803 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×4
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed White Part 4871 Element 4173943 or 487101 ×3
  • Brick Special 1 x 1 Studs on 4 Sides White Part 4733 Element 4111971 or 473301 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×4
  • Brick Wedged, Angled 4 x 2 Left White Part 41768 Element 4160343 ×1
  • Brick Wedged, Angled 4 x 2 Right White Part 41767 Element 4160325 ×1
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges White Part 41748 Element 6552117 or 4160124 ×1
  • Brick Wedged, Curved 6 x 2 Right, Inner Ridges White Part 41747 Element 4160101 ×1
  • Brick Wedged, Curved Inverted 6 x 4 White Part 43713 Element 6580008 or 4261693 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×3
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×4
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×4
  • Plate 6 x 6 White Part 3958 Element 6552116 or 4144012 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] White Part 60897 Element 6330191 or 4613256 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] White Part 3700 Element 6619284 or 370001 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1
  • Wedge Plate 12 x 3 Left White Part 47397 Element 6552123 or 4208987 ×1
  • Wedge Plate 12 x 3 Right White Part 47398 Element 6552124 or 4209005 ×1

Lime 47 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Lime Part 6091 Element 6411328 or 4212446 ×4
  • Brick Curved 3 x 1 No Studs Lime Part 50950 Element 4537928 ×8
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Lime Part 11153 Element 6578745 or 6033782 ×4
  • Brick Round 1 x 1 Open Stud Lime Part 3062b Element 4212454 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Lime Part 61409 Element 6370977 or 4540385 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 1 spare in the box ×3
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×6
  • Plate 1 x 3 Lime Part 3623 Element 4534664 or 4271564 ×2
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×2
  • Plate 1 x 6 Lime Part 3666 Element 4534665 or 4529160 ×2
  • Plate 1 x 8 Lime Part 3460 Element 6392872 or 4271565 ×2
  • Tile 1 x 1 with Groove Lime Part 3070b Element 4537251 1 spare in the box ×2
  • Tile 1 x 4 with Groove Lime Part 2431 Element 4164021 ×6

Black 19 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2
  • Brick Special 1 x 4 with 4 Studs on One Side Black Part 30414 Element 4162443 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×6
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×2
  • Storage / Sorting Tray, Master Builder Academy Black Part 96826 ×1
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Tile 1 x 2 with Avionics Copper, Red & Silver Controls Print Black Part 3069bpr0070 Element 6021512 or 4162982 ×1

Green 16 pieces

  • Bracket 1 x 2 - 2 x 2 Green Part 44728 Element 6117971 or 6048853 ×2
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×1
  • Brick Separator v1.0 Green Part 6007 Element 600728 ×1
  • Plate 1 x 2 Green Part 3023 Element 302328 ×4
  • Plate 1 x 3 Green Part 3623 Element 4107758 or 362328 ×2
  • Plate 1 x 6 Green Part 3666 Element 366628 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Green Part 48336 Element 4521931 ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Green Part 3794a ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Green Part 60470b Element 6347288 or 4556159 ×1

Dark Purple 15 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Purple Part 54200 Element 4567509 or 4255409 1 spare in the box ×4
  • Plate 2 x 3 Dark Purple Part 3021 Element 4225142 ×3
  • Plate Round 1 x 1 with Solid Stud Dark Purple Part 6141 Element 4566522 1 spare in the box ×8

Light Bluish Gray 13 pieces

  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Bluish Gray Part 2436 Element 4282740 or 4211358 ×2
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×2
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×2

Metallic Silver 12 pieces

  • Antenna 1 x 4 with Rounded Top Metallic Silver Part 3957a Element 4579837 ×2
  • Cone 1 x 1 [Top Groove] Metallic Silver Part 59900 Element 6051385 or 4529351 ×6
  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 1 spare in the box ×4

Dark Bluish Gray 3 pieces

  • Minifig Neckwear Bracket [One Stud] Dark Bluish Gray Part 42446 Element 4210469 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×1
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Bluish Gray Part 3794a ×1

Trans-Brown 1 piece

  • Windscreen 8 x 4 x 2 with 4 Studs and Handle Trans-Brown Part 92579 Element 6507964 or 6254293 ×1

Minifigures 1 figure

  • MBA Level One 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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