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.
2,647 pieces in 422 part and color combinations, plus 1 minifigure.
The official piece count includes the 4 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.
Technic Pin Connector Round 1L [Beam]Light Bluish Gray ×11Metallic Silver ×2Light Bluish Gray is yellower than Metallic Silver.
Plate 1 x 1Black ×12Dark Blue ×3Black is yellower and darker than Dark Blue.
Plate Special 2 x 2 with Only 2 studsBlack ×2Dark Blue ×1Black is yellower and darker than Dark Blue.
Tile 1 x 1 with GrooveBlack ×4Dark Blue ×8Black is yellower and darker than Dark Blue.
Tile 1 x 2 with GrooveBlack ×10Dark Blue ×13Black is yellower and darker than Dark Blue.
Brick 2 x 2Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
9 more look-alike pairs
Plate 1 x 6Black ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Plate 2 x 12Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×5Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×14Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 8Black ×3Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 6 x 12Black ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Black ×3Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Tile 1 x 8 with GrooveBlack ×18Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 2 x 2 with GrooveBlack ×9Dark Bluish Gray ×9Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleOrangePart 60483Element 6265128 or 6057526×1
Tile 1 x 3OrangePart 63864Element 4620693×2
Tile 1 x 4 with GrooveOrangePart 2431Element 4160593×1
Tile 2 x 4 with GrooveOrangePart 87079Element 4648853×1
Tile Round 1 x 1 QuarterOrangePart 25269Element 61739251 spare in the box×6
Dark Blue
25 pieces
Plate 1 x 1Dark BluePart 3024Element 6554188 or 41841081 spare in the boxAlso in Black×3
Plate Special 2 x 2 with Only 2 studsDark BluePart 33909Element 6554209 or 6214810Also in Black×1
Tile 1 x 1 with GrooveDark BluePart 3070bElement 6554193 or 46313851 spare in the boxAlso in Black×8
Tile 1 x 2 with GrooveDark BluePart 3069bElement 6554190 or 4528488Also in Black×13
Medium Azure
19 pieces
Brick 1 x 2Medium AzurePart 3004Element 6603336 or 6092674×4
Plate 1 x 1Medium AzurePart 3024Element 6603339 or 60974931 spare in the box×3
Plate 1 x 3Medium AzurePart 3623Element 6119107 or 6013829×1
Plate 1 x 6Medium AzurePart 3666Element 6603312 or 4625036×2
Plate 1 x 8Medium AzurePart 3460Element 6603335 or 6074793×3
Tile Special 2 x 2 Corner with Cut Corner - FacetMedium AzurePart 27263Element 6348141×6
Green
9 pieces
Bracket 2 x 2 with 1 x 2 Vertical StudsGreenPart 41682Element 6352550×4
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom PinGreenPart 32064aElement 6206248 or 4233489×4
Technic Gear 20 Tooth with Clutch on Both SidesGreenPart 81346Element 6391159×1
Dark Turquoise
6 pieces
Tile 45° Cut 2 x 2 (Triangle)Dark TurquoisePart 35787Element 6334128×6
Trans-Clear
4 pieces
Glass for Window 1 x 2 x 3 Flat FrontTrans-ClearPart 60602Element 6581359 or 6252258×1
Helmet Round Sphere with Small HoleTrans-ClearPart 51283Element 6514315 or 6266626×1
Minifig Head [Plain] [Vented Stud - 2 Holes]Trans-ClearPart 28621Element 6513992 or 6168665×1
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]Trans-ClearPart 87552Element 6514185 or 6253231×1
Metallic Silver
3 pieces
Plate Round 1 x 1 with Solid StudMetallic SilverPart 6141Element 51809301 or 65461051 spare in the box×1
Technic Pin Connector Round 1L [Beam]Metallic SilverPart 18654Element 62279581 spare in the boxAlso in Light Bluish Gray×2
Bright Pink
2 pieces
Plate 2 x 2Bright PinkPart 3022Element 6096589 or 4245314×2
Medium Nougat
2 pieces
Plate 2 x 3 with 1 x 1 CutoutMedium NougatPart 73831Element 6336665×2
Bright Light Blue
1 piece
Weapon Spear Tip with FinsBright Light BluePart 24482Element 63960571 spare in the box×1
Dark Tan
1 piece
Technic Axle 3 with StudDark TanPart 6587Element 6031821 or 6013821×1
Flat Silver
1 piece
Tile Round 1 x 1 with '5' Coin PrintFlat SilverPart 98138pr0185Element 63296041 spare in the box×1
Reddish Brown
1 piece
Technic Axle 5 with StopReddish BrownPart 15462Element 6159763×1
Trans-Red
1 piece
Light Brick 2 x 3 x 1 1/3 with Dark Bluish Gray Base [Red LED]Trans-RedPart 54869Element 6577222 or 6555881×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 10323-1[No Color/Any Color]Part 10104462Element 6446025×1
Minifigures
1 figure
PAC-MAN GamerMinifigure, 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.
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.