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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.

Koi Fish

Checking

40545 Koi Fish

203 pieces in 66 part and color combinations.

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

White 49 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small White Part 53451 Element 6270106 or 4568387 1 spare in the box ×2
  • Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - Long White Part 13564 Element 6269074 or 6032360 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×1
  • Brick Sloped 45° 2 x 2 White Part 3039 Element 6552103 or 303901 ×1
  • Equipment Dish / Bowl [Plain] White Part 34172 Element 6474222 or 6198979 1 spare in the box ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box Also in Trans-Clear ×4
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×2
  • Plate 3 x 3 White Part 11212 Element 6552153 or 6104805 ×3
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×4
  • Plate Special 1 x 2 Rounded with 2 Open Studs White Part 35480 Element 6552167 or 6550175 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×4
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) White Part 34103 Element 6550171 or 6195371 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) White Part 87580 Element 6550157 or 6126046 ×2
  • Tile 1 x 3 with Black/Orange Squares Print White Part 63864pr0044 Element 6404514 ×2
  • Tile 2 x 4 with Black/Orange Squares Print White Part 87079pr0289 Element 6404841 ×2
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×6
  • Tile Special 1 x 1 with Clip with Rounded Edges White Part 15712 Element 6348055 or 6054551 ×4
  • Turntable 2 x 2 Female White Part 27448 Element 6536567 or 6238334 ×1

Trans-Clear 24 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 1 spare in the box ×7
  • Brick Sloped 45° 2 x 1 with Bottom Pin Trans-Clear Part 3040b Element 6507936 or 6277460 ×5
  • Plate 1 x 1 Trans-Clear Part 3024 Element 6513962 or 6252041 1 spare in the box Also in White ×8
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box ×4

Black 23 pieces

  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×2
  • Plate 6 x 6 Black Part 3958 Element 395826 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×4
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
  • Tile Round 1 x 1 Half Circle Black Part 24246 Element 6256435 1 spare in the box ×5
  • Tile Round 1 x 1 with Large and Small White Squares Print (Brickheadz Eye) Black Part 98138pr0060 Element 6284077 or 6178627 1 spare in the box ×4

Trans-Light Blue 19 pieces

  • Antenna 1 x 4 with Flat Top Trans-Light Blue Part 3957b Element 6514015 or 6334272 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Light Blue Part 3065 Element 6514268 or 6244910 ×10
  • Brick Round 1 x 1 Open Stud Trans-Light Blue Part 3062b Element 6514238 or 6238677 ×5
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×2

Trans-Orange 14 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
  • Plate 1 x 1 Trans-Orange Part 3024 Element 6513961 or 6252040 1 spare in the box ×4
  • Tile Round 1 x 1 Half Circle Trans-Orange Part 24246 Element 6507959 or 6249116 1 spare in the box ×7

Medium Azure 13 pieces

  • Plate 4 x 4 Medium Azure Part 3031 Element 6141594 ×2
  • Plate 6 x 10 Medium Azure Part 3033 Element 6133692 ×2
  • Tile 1 x 2 with Groove Medium Azure Part 3069b Element 6603315 or 4649741 ×1
  • Tile 1 x 4 with Groove Medium Azure Part 2431 Element 4624705 ×2
  • Tile 2 x 4 with Groove Medium Azure Part 87079 Element 6097042 ×6

Light Bluish Gray 12 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×12

Tan 12 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×1
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×4
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) Tan Part 34103 Element 6211966 ×3
  • Tile 1 x 3 Tan Part 63864 Element 6131896 ×1
  • Tile 2 x 3 Tan Part 26603 Element 6175367 ×3

Trans-Red 12 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Red Part 54200 Element 6245252 or 4244363 1 spare in the box ×3
  • Plate 1 x 2 Trans-Red Part 3023 Element 6514003 or 6240212 ×2
  • Tile Round 1 x 1 Half Circle Trans-Red Part 24246 Element 6507960 or 6264033 1 spare in the box ×7

Bright Light Orange 4 pieces

  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Bright Light Orange Part 32952 Element 6328096 ×4

Bright Pink 4 pieces

  • Brick 1 x 1 Bright Pink Part 3005 Element 4286050 or 4245298 ×3
  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×1

Dark Tan 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Tan Part 54200 Element 6040126 or 6015451 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud Dark Tan Part 6141 Element 6315781 1 spare in the box ×2

Red 3 pieces

  • Plate 1 x 1 x 2/3 with Open Stud Red Part 86996 Element 6397571 ×3

Blue 2 pieces

  • Plate 2 x 3 Blue Part 3021 Element 302123 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×1

Bright Green 2 pieces

  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Bright Green Part 18674 Element 6380676 ×2

Green 2 pieces

  • Brick 2 x 2 Green Part 3003 Element 300328 ×2

Magenta 2 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Magenta Part 24866 Element 6209682 1 spare in the box ×2

Yellow 2 pieces

  • Crown / Flower / Egg Shell Half Yellow Part 39262 Element 6365630 ×2

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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