Free tool

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 Fight

Checking

21139 The Nether Fight

71 pieces in 37 part and color combinations, plus 3 minifigures.

The official piece count includes the 13 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.

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Piece checklist

Dark Red 16 pieces

  • Brick 2 x 4 Dark Red Part 3001 Element 6117418 or 6057588 ×6
  • 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 6 x 8 Dark Red Part 3036 Element 6028115 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Red Part 87580 Element 4613761 ×8

Orange 14 pieces

  • Brick 2 x 2 Orange Part 3003 Element 4153825 or 4119643 ×4
  • Brick 2 x 4 Orange Part 3001 Element 4153827 or 4119641 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Orange Part 3040b Element 4121967 or 4118901 ×2
  • Plate 2 x 2 Orange Part 3022 Element 4613982 or 4159007 ×1
  • Plate 6 x 10 Orange Part 3033 Element 6034497 or 4505159 ×1
  • Tile 1 x 1 with Groove Orange Part 3070b Element 4558595 or 4277770 1 spare in the box ×4
  • Tile 2 x 4 with Groove Orange Part 87079 Element 4648853 ×1

Dark Bluish Gray 9 pieces

  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×2
  • Brick 2 x 4 Dark Bluish Gray Part 3001 Element 4211085 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Bluish Gray Part 87580 Element 6126083 or 4565322 ×3
  • Weapon Sword Blocky Dark Bluish Gray Part 18787 Element 6526124 or 6134370 ×1

Light Bluish Gray 7 pieces

  • Brick Special 2 x 2 with Pin and Axle Hole Light Bluish Gray Part 6232 Element 6347704 or 4211529 ×1
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 2 x 8 Light Bluish Gray Part 3034 Element 4211406 ×1
  • Plate 4 x 6 Light Bluish Gray Part 3032 Element 4211404 ×1
  • Plate 6 x 10 Light Bluish Gray Part 3033 Element 4211405 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×2

Trans-Orange 6 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×3
  • Cone 1 x 1 [Top Groove] Trans-Orange Part 59900 Element 6514017 or 6172233 ×2
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 ×1

Dark Brown 4 pieces

  • Brick 2 x 2 Dark Brown Part 3003 Element 6092677 or 6014520 ×4

Black 3 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1

Red 3 pieces

  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×1

White 3 pieces

  • Brick 1 x 2 with Black 'TNT' Pixelated Print White Part 3004pr0036 Element 6097028 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1

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

Medium Lavender 1 piece

  • Weapon Axe Blocky Medium Lavender Part 18788 Element 6424453 or 6167588 ×1

Pearl Gold 1 piece

  • Weapon Sword Blocky Pearl Gold Part 18787 Element 6093621 ×1

Minifigures 3 figures

  • Wither Skeleton, Square Skull, Straight Arms (60115 Torso) Minifigure, checked as a whole figure ×1
  • Zombie Pigman Minifigure, checked as a whole figure ×1
  • Alex in Flat Silver Armor and Legs 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.