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.
LEGO counts 864 pieces. This inventory comes from a separate parts catalog and lists 865; the two do not always count the same elements, so their totals differ. 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.
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Tan ×2Dark Tan ×6Tan is lighter than Dark Tan.
Plate 1 x 4Tan ×2Dark Tan ×1Tan is lighter than Dark Tan.
Tile 1 x 2 with GrooveTan ×1Dark Tan ×2Tan is lighter than Dark Tan.
Brick Special 1 x 2 with 2 Studs on 1 SideTanPart 11211Element 6024495×2
Brick Wedged 3 x 3 FacetTanPart 2462Element 4598467 or 4282562×2
Plate 1 x 3TanPart 3623Element 4121921 or 362305×4
Plate 1 x 4TanPart 3710Element 4113233 or 371005Also in Dark Tan×2
Plate 2 x 2TanPart 3022Element 4114084 or 302205×1
Plate 2 x 2 CornerTanPart 2420Element 4114077 or 242005×2
Plate 2 x 3TanPart 3021Element 4118790 or 302105×3
Plate 2 x 6TanPart 3795Element 4113993 or 379505×1
Plate Round 1 x 1 with Solid StudTanPart 6141Element 4161734 or 6141052 spares in the box×10
Plate Special 1 x 1 with ToothTanPart 49668Element 4224793×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×4
Technic Pin Long without Friction RidgesTanPart 32556×2
Tile 1 x 2 with GrooveTanPart 3069bElement 4114026Also in Dark Tan×1
Wedge Plate 3 x 3 Cut CornerTanPart 2450Element 4208072 or 245005×2
Lime
51 pieces
Brick 2 x 2LimePart 3003Element 4220632 or 4122451×1
Brick 2 x 4LimePart 3001Element 4165967 or 4122453×1
Brick Curved 2 x 1 No Studs [1/2 Bow]LimePart 11477Element 6069006×8
Brick Curved 2 x 2 with Lip, No StudsLimePart 30602Element 6129278 or 4165841×1
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]LimePart 15672Element 6170559 or 6069166×6
Brick Sloped Inverted 33° 3 x 1 with Internal Stopper and No Front Stud ConnectionLimePart 4287cElement 6138622×2
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]LimePart 3660Element 4529679 or 4212708×1
Brick Special 1 x 1 Studs on 4 SidesLimePart 4733Element 6174006 or 4212458×8
Brick Special 1 x 2 with 2 Studs on 1 SideLimePart 11211Element 6208291×4
Brick Wedged, Curved 4 x 3 No Studs [Plain]LimePart 64225Element 6023954×2
Plate 2 x 2LimePart 3022Element 4613977 or 4537937×4
Plate 2 x 4LimePart 3020Element 4537936 or 4534667×1
Plate Round 1 x 1 with Solid StudLimePart 6141Element 41831331 spare in the box×2
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)LimePart 15573Element 6092592×2
Tile 1 x 1 with GrooveLimePart 3070bElement 45372511 spare in the box×2
Tile 1 x 2 with GrooveLimePart 3069bElement 4500125 or 4164025×2
Tile Round 1 x 1 QuarterLimePart 25269Element 62118751 spare in the box×2
Wedge Plate 3 x 2 LeftLimePart 43723Element 4539907 or 4183168×1
Wedge Plate 3 x 2 RightLimePart 43722Element 4539908 or 4183167×1
Reddish Brown
48 pieces
Brick 1 x 2Reddish BrownPart 3004Element 4613963 or 4211149×4
Brick Round 3 x 4 x 2/3 Triple Curved with 2 Sunk StudsReddish BrownPart 93604Element 6079687×2
Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid]Reddish BrownPart 22388Element 62567341 spare in the box×7
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Reddish BrownPart 15672Element 6075287×2
Brick Special 1 x 4 with 4 Studs on One SideReddish BrownPart 30414Element 6153594×2
Plate 1 x 1Reddish BrownPart 3024Element 42217441 spare in the box×4
Plate 1 x 4Reddish BrownPart 3710Element 4211190×2
Plate 2 x 2Reddish BrownPart 3022Element 4613975 or 4216695×2
Plate 2 x 4Reddish BrownPart 3020Element 4211186×2
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Reddish BrownPart 15573Element 6092590×7
Plate Special 4 x 4 with 3 x 3 Quarter Round CutoutReddish BrownPart 35044Element 6228841×4
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)Reddish BrownPart 18674Element 6102360×2
Tile Special 1 x 2 with Two Vertical Teeth / ToothReddish BrownPart 15209Element 6549448 or 6248940×2
Wedge Plate 4 x 2 LeftReddish BrownPart 41770Element 4205470×3
Wedge Plate 4 x 2 RightReddish BrownPart 41769Element 4205469×3
Black
38 pieces
Bracket 1 x 1 - 1 x 1 InvertedBlackPart 36840Element 6234695×2
Bracket 1 x 2 - 1 x 2BlackPart 99781Element 6016172×14
Technic Axle 4BlackPart 3705Element 370526×2
Technic Axle Connector 2 x 3 with Ball Socket, Open Lower Axle HolesBlackPart 93571Element 4610948×2
Technic Ball Joint with Through Axle HoleBlackPart 53585Element 4286267×2
Technic Pin with Friction Ridges Lengthwise and Center SlotsBlackPart 2780Element 4121715 or 2780262 spares in the box×14
Technic Pin with Friction Ridges Lengthwise and TowballBlackPart 6628Element 4184169 or 662826×2
Green
34 pieces
Brick Curved 2 x 1 No Studs [1/2 Bow]GreenPart 11477Element 6047426×6
Plant, Flower, Plate Round 1 x 1 with 5 PetalsGreenPart 24866Element 61352873 spares in the box×12
Plate 1 x 2GreenPart 3023Element 302328×6
Plate 2 x 10GreenPart 3832Element 383228×1
Plate 2 x 2 CornerGreenPart 2420Element 4157120 or 242028×2
Plate 4 x 4GreenPart 3031Element 4243821 or 4113158×1
Plate Round 1 x 1 with Solid StudGreenPart 6141Element 4569058 or 45199651 spare in the box×4
Plate Special 1 x 2 [Side Handle Closed Ends]GreenPart 48336Element 4521931×1
Plate Special 1 x 2 with Clips Horizontal [Open O Clips]GreenPart 60470bElement 6347288 or 4556159×1
Dark Green
17 pieces
Brick Curved 2 x 1 No Studs [1/2 Bow]Dark GreenPart 11477Element 6618099 or 6055225×4
Brick Curved 2 x 2 x 2/3Dark GreenPart 15068Element 6618100 or 6101285×3
Brick Wedged, Curved 2 x 1 with Stud Notch LeftDark GreenPart 29120Element 6618105 or 6214814×1
Brick Wedged, Curved 2 x 1 with Stud Notch RightDark GreenPart 29119Element 6618104 or 6214813×1
Plate 1 x 3Dark GreenPart 3623Element 6618081 or 6013975×2
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle HoleDark GreenPart 92013Element 6172458×4
Tile 1 x 4 with GrooveDark GreenPart 2431Element 4543949 or 4248267×2
Dark Tan
17 pieces
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Dark TanPart 15672Element 6093064Also in Tan×6
Plate 1 x 4Dark TanPart 3710Element 4626904 or 4497088Also in Tan×1
Plate Round Corner 4 x 4Dark TanPart 30565Element 4570451 or 4505142×4
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)Dark TanPart 18674Element 6132767×2
Tile 1 x 2 with GrooveDark TanPart 3069bElement 4496699Also in Tan×2
Wedge Plate 3 x 2 LeftDark TanPart 43723Element 6002843×1
Wedge Plate 3 x 2 RightDark TanPart 43722Element 6002847×1
Blue
15 pieces
Plate 1 x 2BluePart 3023Element 302323×7
Technic Pin 1/2 without Friction RidgesBluePart 4274Element 41430051 spare in the box×8
Bright Light Orange
14 pieces
Bracket 1 x 1 - 1 x 1 InvertedBright Light OrangePart 36840Element 6249235×6
Plate 2 x 6Bright Light OrangePart 3795Element 6097509×4
Plate Special 1 x 1 with ToothBright Light OrangePart 49668Element 4282860×2
Plate Special 1 x 2 with Three Teeth [Tri-Tooth]Bright Light OrangePart 15208Element 6138731×2
Flat Silver
13 pieces
Equipment Winder Key [Toy]Flat SilverPart 98375Element 6363150 or 61767491 spare in the box×3
Plate Special 1 x 1 with ToothFlat SilverPart 49668Element 4625146×10
Magenta
11 pieces
Brick Curved 2 x 1 No Studs [1/2 Bow]MagentaPart 11477Element 6070763×1
Plate Round 1 x 1 with Solid StudMagentaPart 6141Element 62489703 spares in the box×10
Orange
8 pieces
Brick Sloped 30° 1 x 2 x 2/3OrangePart 85984Element 6068996 or 4648855×1
Plant, Flower, Plate Round 1 x 1 with 5 PetalsOrangePart 24866Element 62142341 spare in the box×2
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)OrangePart 15573Element 6092599×5
Bright Green
7 pieces
Bar 3LBright GreenPart 87994Element 61617721 spare in the box×1
Plant, Plate 1 x 1 Round with 3 LeavesBright GreenPart 32607Element 6182261×6
Dark Brown
2 pieces
Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in BallDark BrownPart 57909bElement 6045909×2
Dark Turquoise
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Sand Green
1 piece
Brick Special 1 x 1 with Studs on 2 SidesSand GreenPart 47905Element 6125672×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 40366-1[No Color/Any Color]Part 59439Element 6271650×1
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.