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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.

Space Shuttle Explorer

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31066 Space Shuttle Explorer

274 pieces in 122 part and color combinations, plus 1 minifigure.

The official piece count includes the 11 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.

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 83 pieces

  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×1
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×6
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] White Part 11153 Element 6578744 or 6564905 ×2
  • Brick Curved Inverted 2 x 1 White Part 24201 Element 6601928 or 6172927 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Brick Wedged, Curved 3 x 4 x 2/3 Cutout White Part 11291 Element 6179658 or 6019163 ×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 6 x 4 Triple White Part 43712 Element 4179869 ×2
  • Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs White Part 45677 Element 4193068 or 456771 ×1
  • Panel 3 x 4 x 3 Curved White Part 18910 Element 6552152 or 6102937 ×6
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×5
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×7
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side White Part 11476 Element 6313115 or 6070712 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] White Part 60478 Element 6552131 or 4515364 ×2
  • Plate Special 1 x 2, Top Clip [Split] White Part 92280 Element 4598527 ×6
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×3
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×4
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×4
  • Wedge Plate 2 x 2 Left White Part 24299 Element 6552156 or 6132203 ×1
  • Wedge Plate 2 x 2 Right White Part 24307 Element 6552157 or 6132204 ×1
  • Wedge Plate 4 x 2 Left White Part 41770 Element 6552119 or 4161326 ×1
  • Wedge Plate 4 x 2 Right White Part 41769 Element 6552118 or 4160857 ×1
  • Wedge Plate 8 x 3, 22° Left White Part 50305 Element 4256097 ×1
  • Wedge Plate 8 x 3, 22° Right White Part 50304 Element 4256095 ×1
  • Wedge Plate 8 x 8 Cut Corner White Part 30504 Element 4585737 or 4288309 ×2

Black 48 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×2
  • Bracket 1 x 2 - 2 x 4 Black Part 93274 Element 6118829 or 4616245 ×2
  • Brick Curved 10 x 1 [Symmetric Inside Ridges] Black Part 13731 Element 6037664 ×4
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Wedged, Sloped 45° 2 x 4 Triple Black Part 47759 Element 6301912 or 6188706 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×2
  • Plate 1 x 10 Black Part 4477 Element 447726 ×1
  • Plate 1 x 3 Black Part 3623 Element 362326 ×6
  • Plate 1 x 4 Black Part 3710 Element 371026 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 4 x 12 Black Part 3029 Element 302926 ×1
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×2
  • Plate Special 1 x 1 with Tooth Black Part 49668 Element 4273590 ×1
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×3
  • Technic Axle and Pin Connector Angled #5 - 112.5° Black Part 32015 Element 6271346 or 4107084 ×1
  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Black Part 15100 Element 6073231 ×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 4 with Groove Black Part 2431 Element 243126 Also in Dark Bluish Gray ×1
  • Tool Screwdriver and Spanner / Wrench Black Part 4006 Element 6034000 or 4569095 ×1
  • Wedge Plate 10 x 10 Cut Corner [No Centre Studs] Black Part 92584 Element 6468015 or 4599461 ×2
  • Wedge Plate 2 x 2 Left Black Part 24299 Element 6141554 ×1
  • Wedge Plate 2 x 2 Right Black Part 24307 Element 6141556 ×1
  • Wedge Plate 4 x 2 Left Black Part 41770 Element 4161332 ×1
  • Wedge Plate 4 x 2 Right Black Part 41769 Element 4160869 ×1
  • Wedge Plate 8 x 3, 22° Left Black Part 50305 Element 4251394 ×1
  • Wedge Plate 8 x 3, 22° Right Black Part 50304 Element 4251393 ×1

Light Bluish Gray 40 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×4
  • Brick Round 2 x 2 Dome Top, Hollow Stud Light Bluish Gray Part 30367c Element 4211637 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Light Bluish Gray Part 15672 Element 6093859 ×2
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×4
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×4
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate Special 4 x 4 with 2 x 2 Opening Light Bluish Gray Part 64799 Element 4612621 ×1
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Bluish Gray Part 32016 Element 6261387 or 4211552 ×2
  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-Reduced Light Bluish Gray Part 33299b Element 4563045 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×6
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×6
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×2
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×2

Dark Bluish Gray 31 pieces

  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×1
  • Brick Round 2 x 2 with Axle Hole Dark Bluish Gray Part 3941 Element 4249139 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 with Buttons And Red Screens Print Dark Bluish Gray Part 85984pr0006 Element 6152814 ×1
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×2
  • Hinge Brick 1 x 2 Base Dark Bluish Gray Part 3937 Element 4211066 ×4
  • Hinge Cylinder 1 x 2 Locking with 2 Click Fingers and Axle Hole, 9 Teeth Dark Bluish Gray Part 30553 Element 4210695 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, without Groove Dark Bluish Gray Part 44567b Element 6266248 ×1
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×4
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Dark Bluish Gray Part 92593 Element 4598769 ×1
  • Technic Axle and Pin Connector Angled #1 Dark Bluish Gray Part 32013 Element 32013199 or 6296856 ×3
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 Also in Black ×2
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×1
  • Wheel 31 x 15 Technic, 7 Pin Holes Dark Bluish Gray Part 60208 Element 4549886 ×6

Blue 23 pieces

  • Plate 1 x 10 Blue Part 4477 Element 447723 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×2
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×4
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×4
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×3
  • Technic Brick 1 x 2 [1 Pin Hole] Blue Part 3700 Element 370023 ×2
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×2
  • Wedge Plate 2 x 4 Blue Part 51739 Element 4609454 ×1

Yellow 15 pieces

  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×10
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×3

Red 10 pieces

  • Brick Special 1 x 2 with 2 Studs on 1 Side Red Part 11211 Element 6019155 ×5
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate Special 1 x 2 [Side Handle Closed Ends] Red Part 48336 Element 4226876 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Trans-Neon Orange 7 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×4
  • Technic Wedge Belt Wheel [aka Pulley] Trans-Neon Orange Part 4185 Element 6124680 or 4172601 ×3

Tan 6 pieces

  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×1
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 1 spare in the box ×2
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×1

Pearl Gold 5 pieces

  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Pearl Gold Part 48336 Element 4585493 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Pearl Gold Part 2412b Element 4490599 ×2

Green 2 pieces

  • Plate Round 1 x 1 with Solid Stud Green Part 6141 Element 4569058 or 4519965 1 spare in the box ×2

Trans-Light Blue 2 pieces

  • Tile Special 2 x 3 with 2 Clips [Thick Open O Clips] Trans-Light Blue Part 30350b Element 4603191 ×2

Trans-Brown 1 piece

  • Windscreen 5 x 4 x 1 1/3 Trans-Brown Part 18972 Element 6510169 or 6244884 ×1

Trans-Clear 1 piece

  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×1

Minifigures 1 figure

  • Astronaut - White Torso and Legs, Backpack 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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