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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.

The Wither

Checking

21126 The Wither

271 pieces in 94 part and color combinations, plus 4 minifigures.

The piece count includes the 47 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

Light Bluish Gray 86 pieces

  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×14
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×3
  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×10
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×4
  • Brick 2 x 6 Light Bluish Gray Part 2456 Element 4274668 or 4211795 ×2
  • Hinge Plate 2 x 4 with Pin Hole with 3 Holes - Top Light Bluish Gray Part 98286 Element 4646513 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×4
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×4
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×6
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×2
  • Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×5
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×10
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Light Bluish Gray Part 32064a Element 6206249 or 4233493 ×6
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×5

Dark Red 54 pieces

  • Brick 1 x 1 Dark Red Part 3005 Element 4541376 or 4209383 ×5
  • Brick 1 x 2 Dark Red Part 3004 Element 4539102 or 4163454 ×7
  • Brick 1 x 6 Dark Red Part 3009 Element 4541528 or 4223789 ×5
  • Brick 2 x 2 Dark Red Part 3003 Element 4539104 or 4249850 ×5
  • Brick 2 x 4 Dark Red Part 3001 Element 6117418 or 6057588 ×4
  • Brick 2 x 6 Dark Red Part 2456 Element 6089268 or 4496339 ×1
  • Brick Special 1 x 2 with Groove Dark Red Part 4216 Element 6070691 ×2
  • Brick Special 1 x 2 with Masonry Brick Profile Dark Red Part 98283 Element 6093908 ×3
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 1 spare in the box ×5
  • Plate 2 x 2 Dark Red Part 3022 Element 4585479 or 4163160 ×1
  • Plate 2 x 4 Dark Red Part 3020 Element 4539071 or 4528320 ×2
  • Plate 4 x 4 Dark Red Part 3031 Element 6134368 or 4613268 ×2
  • Plate 4 x 6 Dark Red Part 3032 Element 6020122 or 4167304 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Red Part 15573 Element 6092597 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Red Part 87580 Element 4613761 ×6
  • Tile 1 x 1 with Groove Dark Red Part 3070b Element 4550169 or 4187196 1 spare in the box ×1
  • Tile 1 x 4 with Groove Dark Red Part 2431 Element 4539060 or 4164220 ×2

Orange 45 pieces

  • Brick 1 x 1 Orange Part 3005 Element 4173805 or 4119645 Also in Trans-Orange ×2
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×5
  • Brick 2 x 2 Orange Part 3003 Element 4153825 or 4119643 ×9
  • Brick 2 x 4 Orange Part 3001 Element 4153827 or 4119641 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Orange Part 85984 Element 6068996 or 4648855 ×1
  • Brick Sloped 45° 2 x 2 Orange Part 3039 Element 4118828 ×7
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×5
  • Plate 16 x 16 Orange Part 91405 Element 6394981 or 6114376 ×1
  • Plate 2 x 6 Orange Part 3795 Element 4121741 ×2
  • Plate 6 x 10 Orange Part 3033 Element 6034497 or 4505159 ×1
  • Plate 6 x 6 Orange Part 3958 Element 6052391 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Orange Part 15573 Element 6092599 ×3
  • Technic Brick 1 x 2 [1 Pin Hole] Orange Part 3700 Element 6136553 or 4160555 ×7

Dark Bluish Gray 18 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×1
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×2
  • Brick Special 1 x 2 with Masonry Brick Profile Dark Bluish Gray Part 98283 Element 6000311 ×2
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×1
  • Plate 8 x 8 Dark Bluish Gray Part 41539 Element 4210802 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×2
  • Plate Special 2 x 4 with Pins Dark Bluish Gray Part 30157 Element 4509884 or 4210682 ×1
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Dark Bluish Gray Part 32000 Element 4210762 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×2
  • Weapon Sword Blocky Dark Bluish Gray Part 18787 Element 6526124 or 6134370 ×2

Red 15 pieces

  • Cone 1 x 1 [Top Groove] Red Part 59900 Element 4529234 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box Also in Trans-Red ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Red Part 2654 Element 4617080 or 4278275 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×2
  • Technic Axle 8 Red Part 3707 Element 6130004 ×1
  • Technic Ball Joint Red Part 32474 Element 4290714 or 4178640 ×3
  • Technic Beam 1 x 7 Thick Red Part 32524 Element 4495933 or 4162098 ×1

Trans-Orange 12 pieces

  • Brick 1 x 1 Trans-Orange Part 3005 Element 6514209 or 6240550 Also in Orange ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×4
  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2
  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 1 spare in the box ×4

Black 11 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×2
  • Technic Axle 12 Black Part 3708 Element 370826 ×1
  • Technic Axle Connector Double Flexible [Rubber] Black Part 45590 Element 4198367 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Black Part 59443 Element 6084612 or 4512363 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1

White 9 pieces

  • Brick 1 x 2 with Black 'TNT' Pixelated Print White Part 3004pr0036 Element 6097028 ×4
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×4

Blue 5 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×3

Dark Brown 5 pieces

  • Brick 2 x 2 Dark Brown Part 3003 Element 6092677 or 6014520 ×4
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Dark Brown Part 64644 Element 4538950 ×1

Trans-Red 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box Also in Red ×4

Dark Tan 2 pieces

  • Plate 1 x 1 Dark Tan Part 3024 Element 4549436 or 4497084 1 spare in the box ×2

Trans-Yellow 2 pieces

  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×2

Yellow 2 pieces

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

Reddish Brown 1 piece

  • Weapon Bow and Arrow, Blocky Reddish Brown Part 18792 Element 6089103 ×1

Minifigures 4 figures

  • Steve in Flat Silver Helmet and Armor Minifigure, checked as a whole figure ×1
  • Wither Skeleton, Square Skull, Straight Arms (60115 Torso) Minifigure, checked as a whole figure ×2
  • Wither 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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