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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.

Black Widow

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41591 Black Widow

143 pieces in 51 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.

  • Plate 1 x 2 Black ×2 Dark Bluish Gray ×4 Black is darker than Dark Bluish Gray.
  • Plate 2 x 2 Black ×1 Dark Bluish Gray ×2 Black is darker than Dark Bluish Gray.
  • Plate 2 x 4 Black ×1 Dark Bluish Gray ×1 Black is darker than Dark Bluish Gray.
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Piece checklist

Plates 53 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×1
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Bluish Gray ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×4
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×2
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 Also in Black ×1
  • Plate 1 x 1 Dark Orange Part 3024 Element 6186012 or 4603739 1 spare in the box ×4
  • Plate 1 x 2 Dark Orange Part 3023 Element 4570877 or 4162217 ×5
  • Plate 1 x 3 Dark Orange Part 3623 Element 6186007 or 4617599 ×6
  • Plate 1 x 4 Dark Orange Part 3710 Element 6074892 or 4603740 ×8
  • Plate 2 x 2 Dark Orange Part 3022 Element 4615606 or 4603741 ×2
  • Plate 2 x 4 Dark Orange Part 3020 Element 4535928 or 4164449 ×5
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×2
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×1
  • Plate 4 x 4 Tan Part 3031 Element 4243824 or 4113919 ×1

Bricks Curved 28 pieces

  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Orange Part 6091 Element 6300093 or 6186632 ×8
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Orange Part 11477 Element 6186009 ×9
  • Brick Curved 2 x 2 x 2/3 Dark Orange Part 15068 Element 6104344 ×9
  • Brick Curved 4 x 2 No Studs Dark Orange Part 93606 Element 6339310 or 6071236 ×2

Tiles 16 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×2
  • Tile 2 x 4 with White Squares in Black Circles and Red Number 1 Pattern Black Part 87079pr0124 Element 6188632 ×1
  • Tile 1 x 2 with Silver Rectangles and Medium Azure Trapezoid Print (Black Widow Cuff) Dark Bluish Gray Part 3069bpr0196 Element 6188469 ×2
  • Tile 1 x 1 with Groove Dark Orange Part 3070b Element 6143431 1 spare in the box ×1
  • Tile 1 x 4 with Groove Dark Orange Part 2431 Element 6074893 or 4165523 ×1
  • Tile 2 x 4 with Groove Dark Orange Part 87079 Element 6058089 ×1
  • Tile 1 x 3 Tan Part 63864 Element 6131896 ×1
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×1

Bricks Special 14 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×14

Plates Special 12 pieces

  • Bracket 1 x 2 - 1 x 2 Black Part 99781 Element 6016172 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Black Part 11476 Element 6313116 or 6132731 ×2
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Black Part 92593 Element 4599499 ×3
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×4
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Tan Part 92593 Element 6173056 ×1

Bricks 9 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×1
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×4
  • Brick 1 x 2 x 2 with Black and Gray Jacket Print Dark Bluish Gray Part 3245cpr0118 Element 6200759 ×1
  • Brick 2 x 2 Orange Part 3003 Element 4153825 or 4119643 ×2

Tiles Round and Curved 4 pieces

  • Tile Round 1 x 1 with Large and Small White Squares Print (Brickheadz Eye) Black Part 98138pr0060 Element 6284077 or 6178627 1 spare in the box ×2
  • Tile Round 1 x 1 Half Circle Light Bluish Gray Part 24246 Element 6250597 or 6151688 1 spare in the box ×2

Plates Round Curved and Dishes 3 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×2

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×1

Plates Wedged 1 piece

  • Wedge Plate 3 x 2 Right Dark Orange Part 43722 Element 6360215 or 6070136 ×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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