BlockTalk Find Your Set

The Workshop Sheet 10 of 19

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

The Redstone Battle

Checking

21163 The Redstone Battle

499 pieces in 127 part and color combinations, plus 4 minifigures.

LEGO counts 504 pieces. This inventory comes from a separate parts catalog and lists 511, including the 12 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.

  • Plate 1 x 2 Red ×14 Trans-Red ×20 Trans-Red is see-through: hold the piece up to a light.
  • Plate 2 x 2 Black ×1 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black ×1 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
Show

Piece checklist

Plates 164 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 ×5
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×1
  • Plate 1 x 2 Bright Pink Part 3023 Element 4654128 or 4245303 ×2
  • Plate 2 x 3 Bright Pink Part 3021 Element 6102999 or 4245290 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×9
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×11
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×21
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×2
  • Plate 3 x 3 Dark Bluish Gray Part 11212 Element 6039176 ×6
  • Plate 4 x 10 Dark Bluish Gray Part 3030 Element 4211122 ×1
  • Plate 6 x 10 Dark Bluish Gray Part 3033 Element 4211114 ×1
  • Plate 2 x 2 Dark Orange Part 3022 Element 4615606 or 4603741 ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×10
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×8
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×2
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×2
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×4
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×9
  • Plate 3 x 3 Light Bluish Gray Part 11212 Element 6015347 ×2
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×1
  • Plate 4 x 8 Medium Nougat Part 3035 Element 6218145 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 Also in Trans-Red ×14
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 6 Red Part 3795 Element 379521 ×2
  • Plate 3 x 3 Red Part 11212 Element 6217123 ×2
  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 1 spare in the box ×1
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 1 spare in the box ×17
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 Also in Red ×20
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 1 spare in the box ×1

Tiles 91 pieces

  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×3
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×5
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 ×2
  • Tile 1 x 6 with Groove Dark Bluish Gray Part 6636 Element 4210651 ×1
  • Tile 2 x 2 with Groove Dark Bluish Gray Part 3068b Element 4211055 ×4
  • Tile 2 x 4 with Groove Dark Bluish Gray Part 87079 Element 4560184 ×3
  • Tile 2 x 4 with Pixelated Black, Red, and Yellow Print Dark Bluish Gray Part 87079pr0216 Element 6305237 ×1
  • Tile 2 x 2 with Pixelated Blue, Green and White Map on Tan Background Print Dark Tan Part 3068bpr0337 Element 6192746 ×1
  • Tile 1 x 2 with Groove Green Part 3069b Element 306928 ×3
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×12
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×6
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×1
  • Tile 2 x 3 Light Bluish Gray Part 26603 Element 6171894 ×7
  • Tile 2 x 3 with Dark Bluish Grey/Black Squares/Pixels, Red/Yellow Eyes Print Light Bluish Gray Part 26603pr0038 Element 6305233 ×1
  • Tile 2 x 3 with Pixelated Dark Bluish Gray and Black Squares Print Light Bluish Gray Part 26603pr0037 Element 6305230 ×4
  • Tile 2 x 2 with Dark Brown Minecraft Grid Print (Crafting Table) Medium Nougat Part 3068bpr0236 Element 6097003 ×1
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box ×6
  • Tile 1 x 2 with Groove Trans-Red Part 3069b Element 6514220 or 6251290 ×30

Bricks 87 pieces

  • Brick 1 x 2 Coral Part 3004 Element 6258572 ×9
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×4
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×7
  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×4
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×8
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×4
  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×4
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×1
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×1
  • Brick 1 x 1 Medium Nougat Part 3005 Element 6057986 or 4569624 ×4
  • Brick 1 x 2 with Reddish Brown and Dark Brown Lines Print Medium Nougat Part 3004pr0014 Element 6097024 ×2
  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 ×2
  • Brick 2 x 4 Red Part 3001 Element 300121 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Red Part 3065 Element 6514263 or 6244905 ×25
  • Brick 2 x 2 without Inside Ridges Trans-Red Part 6223 Element 6514092 or 6239416 ×10

Plates Special 49 pieces

  • Bracket 2 x 2 with 1 x 2 Vertical Studs Black Part 41682 Element 6250020 ×3
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Black Part 87580 Element 6663108 or 4565323 Also in Dark Bluish Gray ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Bright Light Orange Part 15573 Element 6122504 ×8
  • Bracket 1 x 1 - 1 x 1 Inverted Dark Bluish Gray Part 36840 Element 6225494 ×3
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Dark Bluish Gray Part 61252 Element 6360111 or 4579354 ×2
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×4
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 Also in Black ×1
  • Technic Plate 2 x 4 [3 Holes] Dark Bluish Gray Part 3709 Element 4227398 ×3
  • Bracket 1 x 1 - 1 x 1 Light Bluish Gray Part 36841 Element 6248078 or 6227012 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×1
  • Bracket 2 x 2 with 1 x 2 Vertical Studs Light Bluish Gray Part 41682 Element 6258820 ×6
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×3
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×4
  • Plate Special 2 x 2 with Towball and Hole Light Bluish Gray Part 15456 Element 6448319 or 6359225 ×2
  • Bracket 1 x 2 - 2 x 2 Inverted Red Part 99207 Element 6001806 ×1
  • Plate Special 2 x 4 with Groove and Two Center Studs (Jumper) Tan Part 65509 Element 6294227 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×1

Plates Round Curved and Dishes 36 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×3
  • Plate Round 1 x 1 with Solid Stud Bright Green Part 6141 Element 6109808 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Dark Bluish Gray Part 6141 Element 4210633 1 spare in the box ×10
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×5
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×14

Hinges, Arms and Turntables 14 pieces

  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 7 Teeth Dark Bluish Gray Part 54671 Element 6267141 ×4
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, without Groove Light Bluish Gray Part 44301b Element 6266231 ×10

Bricks Special 11 pieces

  • Brick Special 1 x 2 with Groove Bright Pink Part 4216 Element 6291009 or 6103000 ×2
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Dark Bluish Gray Part 60475b Element 6321350 or 4580437 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×2
  • Brick Special 2 x 2 with Grooves and Axle Hole Dark Bluish Gray Part 90258 Element 6236949 or 4583879 ×1
  • Brick Special 1 x 2 with Vertical Clip [Open O Clip] Light Bluish Gray Part 30237b Element 6320297 or 4641682 ×4

Minifig Shields, Weapons, & Tools 10 pieces

  • Weapon Axe, Pixelated Flat Silver Part 65505f ×1
  • Weapon Flail, Pixelated Flat Silver Part 65505c ×1
  • Weapon Scythe, Pixelated Flat Silver Part 65505e ×1
  • Weapon Sickle, Pixelated Flat Silver Part 65505b ×2
  • Weapon Sword Small, Pixelated Flat Silver Part 65505d ×2
  • Weapon Sword with Bend Tip, Pixelated Flat Silver Part 65505a ×1
  • Weapon Crossbow and Bolt, Blocky Reddish Brown Part 65510 Element 6288630 ×2

Technic Special 9 pieces

  • Technic Ball Joint with Through Axle Hole Black Part 53585 Element 4286267 1 spare in the box ×1
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole Black Part 92013 Element 4619763 ×5
  • 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 and Axle Hole, with 6 Holes in Ball Dark Bluish Gray Part 57909b Element 4497253 ×2

Bars, Ladders and Fences 6 pieces

  • Bar Holder with Hole and Bar Handle Light Bluish Gray Part 23443 Element 6343976 or 6152107 ×6

Tiles Special 4 pieces

  • Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×1
  • Tile Special 2 x 2 Inverted Light Bluish Gray Part 11203 Element 6132886 ×2
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box ×1

Bricks Sloped 3 pieces

  • 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 Red Part 85984 Element 4651524 ×2

Technic Bricks 3 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Blue Part 3700 Element 370023 ×2
  • Technic Brick 1 x 1 with Pin Hole Red Part 6541 Element 654121 ×1

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, No Groove Pearl Gold Part 4738c Element 6278470 ×1
  • Treasure Chest Lid [Thick Hinge] Pearl Gold Part 4739a Element 6278473 or 4541394 ×1

Minifig Heads 2 pieces

  • Minifig Head Special, Cube with Rear Ledge, Pixelated Black, White and Dark Red Face, Dark Pink Snout Outline Print (Pig) Bright Pink Part 19727pr0002 ×1
  • Minifig Head [Plain] [Vented Stud - 2 Holes] Trans-Red Part 28621 Element 6513995 or 6276023 ×1

Panels 2 pieces

  • Panel 1 x 2 x 1 with Rounded Corners and 2 Sides Black Part 23969 Element 6248496 or 6174845 ×2

Technic Axles 2 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1
  • Technic Axle 4 with Centre Stop Tan Part 99008 Element 4666999 ×1

Technic Pins 2 pieces

  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Pearl Gold Part 32054 Element 6285441 ×1

Minifig Accessories 1 piece

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Dark Brown Part 64644 Element 4538950 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Round 1L [Beam] Light Bluish Gray Part 18654 Element 6183784 1 spare in the box ×1

Minifigures 4 figures

  • Valorie Minifigure, checked as a whole figure ×1
  • Hal Minifigure, checked as a whole figure ×1
  • Hedwig / Adriene Minifigure, checked as a whole figure ×1
  • Hex 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy