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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 Mushroom House

Checking

21179 The Mushroom House

262 pieces in 79 part and color combinations, plus 2 minifigures.

The official piece count includes the 10 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

Red 83 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick 1 x 4 Red Part 3010 Element 301021 ×3
  • Brick 1 x 6 Red Part 3009 Element 300921 ×4
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×6
  • Brick 2 x 2 Corner Red Part 2357 Element 235771 or 235721 ×2
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×6
  • Minifig Head Special, Cube with Rear Ledge, Pixelated Black, Light Bluish Grey, Dark Bluish Gray Face Print Red Part 19727pr0077 Element 6385117 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×17
  • Plate 1 x 6 Red Part 3666 Element 366621 ×1
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×25
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate 6 x 6 Red Part 3958 Element 4144302 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×9
  • Window 1 x 4 x 3 without Shutter Tabs Red Part 60594 Element 6138800 or 4583716 ×1

White 59 pieces

  • Brick 2 x 2 x 3 White Part 30145 Element 4109791 ×1
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Brick Special 1 x 2 with Groove White Part 4216 Element 6619288 or 4264360 ×2
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×43
  • 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 ×3
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] White Part 60470b Element 6347287 or 4556152 ×1
  • Plate Special 1 x 2 with Door Rail White Part 32028 Element 6550168 or 4249563 ×3
  • Plate Special 2 x 2 with Only 2 studs White Part 33909 Element 6552170 or 6548287 ×2
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1

Black 19 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Black Part 99780 Element 6020193 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Black Part 1927 Element 6672302 or 6416444 ×4
  • Minifig Head Special, Cube with Rear Ledge, Pixelated Red Face Print (Spider) Black Part 19727pr0005 Element 6335371 or 6162540 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×3
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Black Part 63868 Element 6336989 or 4535739 ×4
  • Tile 2 x 3 Black Part 26603 Element 6162892 ×1

Green 16 pieces

  • Bracket 1 x 2 - 2 x 2 Green Part 44728 Element 6117971 or 6048853 ×4
  • Brick 2 x 6 Green Part 2456 Element 4181135 or 4142867 ×2
  • Plate 2 x 6 Green Part 3795 Element 379528 ×1
  • Plate 2 x 8 Green Part 3034 Element 303428 ×1
  • Plate 4 x 8 Green Part 3035 Element 4277361 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Green Part 87580 Element 6389692 or 4565321 ×4

Reddish Brown 15 pieces

  • Brick 2 x 10 Reddish Brown Part 3006 Element 6096716 or 4617863 ×1
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×7
  • Brick 2 x 6 Reddish Brown Part 2456 Element 4286200 or 4216615 ×3
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 2 x 6 Reddish Brown Part 3795 Element 4211247 ×1
  • Tile Special Round 1 x 1 with Hollow Bar Reddish Brown Part 20482 Element 6186673 or 6162975 1 spare in the box ×1
  • Weapon Bow and Arrow, Blocky Reddish Brown Part 18792 Element 6089103 ×1

Medium Nougat 13 pieces

  • Bar 1 x 4 x 3 [End Tabs] Medium Nougat Part 62113 Element 6167599 ×1
  • Brick 1 x 2 with Reddish Brown and Dark Brown Lines Print Medium Nougat Part 3004pr0014 Element 6097024 ×2
  • Plate 1 x 1 Medium Nougat Part 3024 Element 6215606 or 4645054 1 spare in the box ×1
  • Plate 1 x 1 x 2/3 with Open Stud Medium Nougat Part 86996 Element 6383946 ×6
  • Tile 2 x 2 with Dark Brown Minecraft Grid Print (Crafting Table) Medium Nougat Part 3068bpr0236 Element 6097003 ×1
  • Treasure Chest Bottom with Rear Slots, No Groove Medium Nougat Part 4738c Element 6102984 ×1
  • Treasure Chest Lid [Thick Hinge] Medium Nougat Part 4739a Element 6254218 or 6167286 ×1

Tan 12 pieces

  • Plate 2 x 2 Tan Part 3022 Element 4114084 or 302205 ×2
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×1
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 Also in Dark Tan ×5
  • Plate 4 x 10 Tan Part 3030 Element 6037834 or 4609328 ×1
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×3

Dark Tan 11 pieces

  • Bucket 1 x 1 x 1 Handle Dark Tan Part 95344 Element 6245275 or 4626884 1 spare in the box ×1
  • Plate 2 x 6 Dark Tan Part 3795 Element 4550329 Also in Tan ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Tan Part 87580 Element 6126075 or 4578032 ×9

Dark Green 9 pieces

  • Brick 2 x 4 Dark Green Part 3001 Element 4260493 ×3
  • Plate Special 2 x 4 with Groove and Two Center Studs (Jumper) Dark Green Part 65509 Element 6383324 ×6

Trans-Green 5 pieces

  • Brick 2 x 2 without Inside Ridges Trans-Green Part 6223 Element 6514090 or 6219774 ×5

Bright Green 4 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Bright Green Part 24866 Element 6526150 or 6206150 1 spare in the box ×4

Trans-Light Blue 4 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Light Blue Part 87552 Element 6581813 or 6253230 ×4

Bright Light Orange 2 pieces

  • Plant, Carrot Top Bright Light Orange Part 33183 Element 6096682 1 spare in the box ×2

Yellow 2 pieces

  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×2

Blue 1 piece

  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1

Bright Pink 1 piece

  • Plate 1 x 2 Bright Pink Part 3023 Element 4654128 or 4245303 ×1

Dark Brown 1 piece

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

Flat Silver 1 piece

  • Weapon Axe Blocky Flat Silver Part 18788 Element 6089099 ×1

Light Bluish Gray 1 piece

  • Bucket 1 x 1 x 1 Light Bluish Gray Part 95343 Element 6057487 ×1

Trans-Dark Blue 1 piece

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Trans-Dark Blue Part 87580 Element 6499253 or 6382531 ×1

Trans-Orange 1 piece

  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 1 spare in the box ×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

  • Alex Minifigure, checked as a whole figure ×1
  • Skeleton, Square Skull, Medium Lavender Helmet (60115 Torso), Spider Jockey 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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