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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 Nether Railway

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21130 The Nether Railway

380 pieces in 84 part and color combinations, plus 2 minifigures.

The official piece count includes the 7 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 101 pieces

  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×23
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×3
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×2
  • Panel 2 x 2 x 1 Corner Light Bluish Gray Part 91501 Element 6181755 or 6008311 ×4
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×3
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3
  • Plate 4 x 4 Light Bluish Gray Part 3031 Element 4243797 or 4211403 ×1
  • Plate 6 x 6 Light Bluish Gray Part 3958 Element 4211474 ×4
  • 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 with Pin Hole Underneath Light Bluish Gray Part 18677 Element 6168633 or 6089147 ×10
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×17
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2
  • Technic Plate 2 x 6 [5 Holes] Light Bluish Gray Part 32001 Element 4211542 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×3
  • Tile 1 x 6 with Groove Light Bluish Gray Part 6636 Element 4211549 ×12
  • Tile 2 x 2 Curved, Macaroni Light Bluish Gray Part 27925 Element 6163990 ×6
  • Tile 4 x 4 Curved, Macaroni Light Bluish Gray Part 27507 Element 6458164 or 6163989 ×4

Dark Red 97 pieces

  • Brick 1 x 4 Dark Red Part 3010 Element 6097586 or 6052777 ×1
  • Brick 2 x 2 Dark Red Part 3003 Element 4539104 or 4249850 ×39
  • Brick 2 x 2 Corner Dark Red Part 2357 Element 4541379 or 4248771 ×4
  • Brick 2 x 6 Dark Red Part 2456 Element 6089268 or 4496339 ×2
  • Minifig Head Special, Cube with Pixelated Face, Red, Orange, Yellow Square Eyes, Black Squares Print Dark Red Part 19729pr0023 Element 6468478 or 6176402 ×1
  • Plate 1 x 1 Dark Red Part 3024 Element 4539114 or 4183901 1 spare in the box ×8
  • Plate 1 x 3 Dark Red Part 3623 Element 4539076 or 4164223 ×2
  • Plate 1 x 4 Dark Red Part 3710 Element 4539061 or 4164219 ×6
  • Plate 2 x 12 Dark Red Part 2445 Element 6544174 or 6009130 ×2
  • Plate 2 x 2 Dark Red Part 3022 Element 4585479 or 4163160 ×2
  • Plate 6 x 6 Dark Red Part 3958 Element 6471682 or 6173945 ×7
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Red Part 87580 Element 4613761 ×15
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Red Part 32064a Element 6206250 or 4539059 ×4
  • Tile 1 x 1 with Groove Dark Red Part 3070b Element 4550169 or 4187196 1 spare in the box ×1
  • Tile 1 x 2 with Groove Dark Red Part 3069b Element 4539090 or 4529548 ×2
  • Tile 1 x 4 with Red, Orange and Yellow Squares Minecraft Magma Cube Eyes Print Dark Red Part 2431pr0083 Element 6588077 or 6337238 ×1

Reddish Brown 75 pieces

  • Brick 1 x 3 Reddish Brown Part 3622 Element 4245312 or 4211220 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Reddish Brown Part 85984 Element 6035291 ×4
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Reddish Brown Part 15573 Element 6092590 ×26
  • Plate Special 2 x 2 Wedge, Center Stud, 1 x 1/2 Raised Tab Reddish Brown Part 27928 Element 6550533 or 6163991 ×24
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Reddish Brown Part 87580 Element 4565394 ×9
  • Technic Axle 3 with Stop Reddish Brown Part 24316 Element 6135494 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Reddish Brown Part 3700 Element 4211252 ×2
  • Window 1 x 2 x 2 Flat Front Reddish Brown Part 60592 Element 6382102 or 4595814 ×2

Orange 25 pieces

  • Brick 2 x 4 Orange Part 3001 Element 4153827 or 4119641 ×15
  • Brick Sloped 45° 2 x 2 Orange Part 3039 Element 4118828 ×4
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×1
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×1
  • Plate 6 x 6 Orange Part 3958 Element 6052391 ×2
  • Tile 1 x 3 Orange Part 63864 Element 4620693 ×2

Dark Brown 18 pieces

  • Brick 2 x 2 Dark Brown Part 3003 Element 6092677 or 6014520 ×12
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Dark Brown Part 64644 Element 4538950 ×1
  • Plate 6 x 6 Dark Brown Part 3958 Element 6162898 ×3
  • Technic Pin Connector Hub with 1 Axle Dark Brown Part 22961 Element 6134197 ×2

Black 16 pieces

  • Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Black Part 11215 Element 6039194 ×1
  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×4
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×1
  • Window 1 x 2 x 2 Flat Front Black Part 60592 Element 6382697 or 4521439 ×2

Dark Bluish Gray 14 pieces

  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Dark Bluish Gray Part 6232 Element 6408023 or 4211046 ×2
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×2
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×1
  • Tile Special Round 2 x 2 with Hole Dark Bluish Gray Part 15535 Element 6055313 ×1

White 10 pieces

  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×10

Trans-Orange 5 pieces

  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 1 spare in the box ×4
  • Tile 1 x 2 with Groove Trans-Orange Part 3069b Element 6514225 or 6251306 ×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 ×2
  • Tile 1 x 1 with Groove Trans-Red Part 3070b Element 6581817 or 6254248 1 spare in the box ×2

Dark Tan 3 pieces

  • Plate 1 x 1 Dark Tan Part 3024 Element 4549436 or 4497084 1 spare in the box ×2
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1

Pearl Gold 3 pieces

  • Tile 1 x 2 with Groove Pearl Gold Part 3069b Element 6107197 ×2
  • Weapon Sword Blocky Pearl Gold Part 18787 Element 6093621 ×1

Yellow 3 pieces

  • Technic Brick 1 x 2 [2 Pin Holes] Yellow Part 32000 Element 4201615 or 4160860 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×1

Blue 2 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×2

Red 2 pieces

  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×2

Medium Azure 1 piece

  • Tool Pickaxe Blocky, Double Medium Azure Part 18789 Element 6093629 ×1

Trans-Yellow 1 piece

  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 1 spare in the box ×1

Minifigures 2 figures

  • Zombie Pigman Minifigure, checked as a whole figure ×1
  • Steve in Medium Azure Armor 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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