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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.

Robo Explorer

Checking

31062 Robo Explorer

205 pieces in 87 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

Black 75 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×1
  • Bracket 2 x 2 - 2 x 2 Black Part 3956 Element 6254808 or 6019217 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×2
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×2
  • Brick Curved 4 x 1 Double, No Studs Black Part 93273 Element 4613153 ×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 Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Wedged, Curved 3 x 4 x 2/3 Cutout Black Part 11291 Element 6179660 or 6052851 ×1
  • Equipment Flotation Ring [Life Preserver] Black Part 30340 Element 6097072 or 4203611 ×2
  • Grille / Spoiler with 1 x 2 Plate, 2 x 2 Anti-studs (Racers Car) Black Part 50949 Element 4504187 ×1
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×3
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Black Part 32064a Element 6178922 or 4233487 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Black Part 3894 Element 389426 ×2
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole Black Part 92013 Element 4619763 Also in Dark Bluish Gray ×1
  • Technic Link Tread with Beveled Edge Black Part 15379 Element 6047885 2 spares in the box ×40
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2
  • Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction Black Part 47455 Element 4272426 or 4213374 ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tyre Offset Tread with Center Band 23 x 7 Black Part 61254 Element 4541455 ×1
  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Black Part 50745 Element 4260488 ×1

Light Bluish Gray 48 pieces

  • Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×1
  • Brick Curved Inverted 2 x 1 Light Bluish Gray Part 24201 Element 6144138 ×4
  • Brick Curved Inverted 4 x 1 Light Bluish Gray Part 13547 Element 6132872 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×2
  • Brick Wedged 2 x 2 Facet Light Bluish Gray Part 87620 Element 4651063 ×2
  • Brick Wedged, Sloped 45° 2 x 2 Corner Light Bluish Gray Part 13548 Element 6034676 ×2
  • Flag 2 x 2 Square, Flat Clip Edge [Thick Clips] Light Bluish Gray Part 11055 Element 6011817 or 4271362 ×2
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×10
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×2
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Bluish Gray Part 2540 Element 4211632 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×2
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×2
  • Technic Disc 3 x 3 Light Bluish Gray Part 2723 Element 4667578 ×4
  • Technic Engine Cylinder without Side Slots, with Bottom Slots Light Bluish Gray Part 2850b Element 6514436 or 6383961 ×1
  • Technic Gear 16 Tooth Reinforced [New Style] Light Bluish Gray Part 94925 Element 4640536 ×2
  • Wedge Plate 4 x 2 Left Light Bluish Gray Part 41770 Element 4211735 ×1
  • Wedge Plate 4 x 2 Right Light Bluish Gray Part 41769 Element 4211732 ×1
  • Wedge Plate 4 x 4 Cut Corner Light Bluish Gray Part 30503 Element 4160560 ×1

Dark Bluish Gray 31 pieces

  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×2
  • Brick Round 2 x 2 Dome Top, Hollow Stud Dark Bluish Gray Part 30367c Element 4161674 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×6
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×4
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Technic Axle 8 with Stop Dark Bluish Gray Part 55013 Element 4499858 ×1
  • Technic Brick Special 2 x 2 with 10.2mm Balls with Holes and Axle Hole Dark Bluish Gray Part 17114 Element 6065816 ×1
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole Dark Bluish Gray Part 92013 Element 4619760 Also in Black ×2
  • Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball Dark Bluish Gray Part 57909b Element 4497253 ×1
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top] Dark Bluish Gray Part 48170 Element 6279898 or 4227395 ×1
  • Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Socket Dark Bluish Gray Part 48169 Element 6278974 or 4225973 ×1
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×2
  • Technic Plate 2 x 4 [3 Holes] Dark Bluish Gray Part 3709 Element 4227398 ×2

Medium Azure 23 pieces

  • Brick 1 x 1 Medium Azure Part 3005 Element 6603285 or 4619652 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Medium Azure Part 6091 Element 6335566 or 4655246 ×4
  • Brick Curved 1 x 4 x 1 1/3 No Studs Medium Azure Part 10314 Element 6015098 ×1
  • Brick Curved 2 x 3 Medium Azure Part 6215 Element 6146866 ×1
  • Brick Curved 3 x 1 No Studs Medium Azure Part 50950 Element 6035598 ×2
  • Brick Curved 4 x 1 Double, No Studs Medium Azure Part 93273 Element 6097093 ×1
  • Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges] Medium Azure Part 11153 Element 6603601 or 6580402 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Medium Azure Part 54200 Element 6603283 or 4619520 1 spare in the box ×2
  • Brick Sloped 45° 2 x 2 Medium Azure Part 3039 Element 6173655 ×1
  • Plate 2 x 4 Medium Azure Part 3020 Element 6603317 or 6013826 ×1
  • Tile 1 x 2 with Groove Medium Azure Part 3069b Element 6603315 or 4649741 ×2
  • Tile 1 x 4 with Groove Medium Azure Part 2431 Element 4624705 ×1
  • Tile 2 x 2 with Groove Medium Azure Part 3068b Element 6060857 ×1
  • Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate Medium Azure Part 50745 Element 6177664 or 4599550 ×2

Red 7 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×2
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×5

Trans-Neon Green 5 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Neon Green Part 54200 Element 6245280 or 6076751 1 spare in the box ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×2

Reddish Brown 3 pieces

  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×1
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×2

Trans-Clear 3 pieces

  • Brick Special 1 x 1 with Headlight Trans-Clear Part 4070 Element 6514231 or 6244796 ×2
  • Light Brick 2 x 3 x 1 1/3 with Dark Bluish Gray Base [Yellow LED] Trans-Clear Part 62930 Element 6555880 or 6429472 ×1

White 3 pieces

  • Bracket 1 x 2 - 1 x 4 [Rounded Corners] White Part 10201 Element 6089574 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1
  • Wheel 18 x 8 with Fake Bolts and Shallow Spokes and Axle Hole White Part 56903 Element 6013484 ×1

Yellow 3 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×3

Trans-Green 2 pieces

  • Tile Round 1 x 1 Trans-Green Part 98138 Element 6514194 or 6274742 1 spare in the box ×2

Trans-Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×2

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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