BlockTalk Find Your Set

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.

Trick or Treat

Checking

40122 Trick or Treat

123 pieces in 56 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.

Show

Piece checklist

Plates 40 pieces

  • Plate 1 x 3 Black Part 3623 Element 362326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×6
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×4
  • Plate 1 x 8 Dark Bluish Gray Part 3460 Element 4210998 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×1
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×2
  • Plate 4 x 8 Dark Green Part 3035 Element 4505051 ×2
  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×8
  • Plate 2 x 3 Dark Purple Part 3021 Element 4225142 ×2
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • 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 8 Reddish Brown Part 3034 Element 4211211 ×1
  • Plate 1 x 1 Trans-Dark Blue Part 3024 Element 6513965 or 6252044 1 spare in the box ×2
  • Plate 1 x 1 Trans-Green Part 3024 Element 6513967 or 6252046 1 spare in the box ×4

Bricks 17 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 Also in Dark Bluish Gray ×6
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 Also in Black ×1
  • Brick 1 x 1 Trans-Purple Part 3005 Element 6240552 or 6066120 ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×3
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×3
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×2

Bricks Sloped 12 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×4
  • Brick Sloped 33° 3 x 4 Black Part 3297 Element 6435854 or 329726 ×1
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×4
  • Brick Sloped 65° 2 x 1 x 2 Black Part 60481 Element 4515373 ×2
  • Brick Sloped 45° 2 x 1 Double with Inside Stud Holder Dark Bluish Gray Part 3044c Element 4226221 ×1

Plants & Trees 9 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Green Part 33291 Element 6170300 or 4619599 1 spare in the box ×3
  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Bright Light Orange Part 33291 Element 6170304 or 4624184 1 spare in the box ×1
  • Plant, Grass Stem with Bar Hole [3.2mm] Olive Green Part 15279 Element 6226619 or 6188694 ×2
  • Plant, Leaves 4 x 3 Olive Green Part 2423 Element 6268815 or 6006425 ×3

Bricks Round and Cones 8 pieces

  • Cone 1 x 1 [Top Groove] Black Part 59900 Element 4529236 ×2
  • Cone 1 x 1 [Top Groove] Reddish Brown Part 59900 Element 4529242 ×6

Plates Round Curved and Dishes 8 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×2
  • Plate Round 1 x 1 Swirled Top Bright Pink Part 15470 Element 6424008 or 6060795 1 spare in the box ×1
  • Plate Round Corner 4 x 4 Dark Green Part 30565 Element 6630968 or 4629681 ×1
  • Plate Round 1 x 1 with Solid Stud Dark Purple Part 6141 Element 4566522 1 spare in the box ×4

Plates Special 7 pieces

  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 Also in Dark Bluish Gray ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 Also in Black ×2
  • Plate Special 1 x 2 with Door Rail Dark Bluish Gray Part 32028 Element 4543086 or 4541289 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Bluish Gray Part 11476 Element 6313114 or 6028812 ×1

Tiles 4 pieces

  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×1
  • Tile 1 x 4 with Groove Dark Bluish Gray Part 2431 Element 4211053 ×1
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×2

Bricks Special 3 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Dark Orange Part 87087 Element 4666322 ×1
  • Brick Special 1 x 2 with Masonry Brick Profile Dark Tan Part 98283 Element 4646577 ×2

Minifig Heads 3 pieces

  • Minifig Head [Plain] [Hollow Stud] Orange Part 3626c Element 4511896 ×3

Animals / Creatures 2 pieces

  • Animal, Bat Black Part 30103 Element 4587312 or 4106513 ×1
  • Insect, Spider Red Part 30238 Element 4593768 ×1

Bricks Curved 2 pieces

  • Brick Arch 1 x 3 x 2 Black Part 88292 Element 4581280 ×2

Containers 2 pieces

  • Bucket 1 x 1 x 1 Handle Pearl Gold Part 95344 Element 6245278 or 4654247 1 spare in the box ×1
  • Bucket 1 x 1 x 1 Red Part 95343 Element 6003001 ×1

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Light Bluish Gray Part 98138 Element 6284071 or 4650260 1 spare in the box ×2

Windows and Doors 2 pieces

  • Door 1 x 4 x 6 with 4 Panes and Stud Handle Black Part 60623 Element 4521208 ×1
  • Door Frame 1 x 4 x 6 Type 2 Dark Bluish Gray Part 60596 Element 6262942 or 4535833 ×1

Animal / Creature Body Parts 1 piece

  • Animal Body Part, Dog Bone [Short] White Part 93160 Element 6360202 or 4600294 1 spare in the box ×1

Minifig Accessories 1 piece

  • Equipment Brush / Broom Reddish Brown Part 4332 Element 6268855 or 6122108 ×1

Minifigures 2 figures

  • Skeleton, Standard Face, Bent Arms, Vertical Hand Clips, 60115 Torso Minifigure, checked as a whole figure ×1
  • Girl, White Corset with Stars, Short Dark Azure Legs, Black Witch Hat 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy