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.
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 33° 3 x 1Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]Black ×3Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×3Dark Bluish Gray ×11Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×4Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Wedge Plate 4 x 2 LeftBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
1 more look-alike pair
Wedge Plate 4 x 2 RightBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Wedged, Angled 3 x 2 LeftTanPart 6565Element 4255464 or 4129505×2
Brick Wedged, Angled 3 x 2 RightTanPart 6564Element 4255463 or 4129504×2
Brick Wedged, Angled 4 x 2 LeftTanPart 41768Element 4160345×5
Brick Wedged, Angled 4 x 2 RightTanPart 41767Element 6394212 or 4160327×5
Brick Wedged, Curved 6 x 2 Left, Inner RidgesTanPart 41748Element 6004427 or 4160126×3
Brick Wedged, Curved 6 x 2 Right, Inner RidgesTanPart 41747Element 6310453 or 6004431×3
Brick Wedged, Curved Inverted 6 x 2 LeftTanPart 41765Element 4161277×2
Brick Wedged, Curved Inverted 6 x 2 RightTanPart 41764Element 4161262×2
Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 StudsTanPart 45677Element 6253319 or 6020372×1
Brick Wedged, Sloped 4 x 2 Triple LeftTanPart 43710Element 6055775 or 4180416×9
Brick Wedged, Sloped 4 x 2 Triple RightTanPart 43711Element 6055780 or 4180426×9
Plates Special
36 pieces
Bracket 1 x 2 - 1 x 4 [Square Corners]BlackPart 2436Element 4282746 or 243626×2
Bracket 1 x 2 - 2 x 2Dark Bluish GrayPart 44728Element 6117972 or 6048854×2
Bracket 1 x 2 - 1 x 4 [Square Corners]Dark OrangePart 2436Element 4282748 or 4263092×4
Bracket 1 x 2 - 2 x 2Dark OrangePart 44728Element 6536278 or 6361744×6
Plate Special 1 x 1 with ToothWhitePart 49668Element 6601935 or 4224792×22
Technic Special
20 pieces
Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top]Light Bluish GrayPart 48170Element 4226637×1
Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Horizontal Top], Rotation Joint SocketReddish BrownPart 47452Element 4239484×4
Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint Ball Half [Vertical Side]Reddish BrownPart 48171Element 4251054×6
Technic Brick Special 2 x 2 with Pin Hole, Rotation Joint SocketReddish BrownPart 48169Element 4251053×7
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]WhitePart 41669Element 4173941×2
Technic Pins
19 pieces
Technic Pin with Friction Ridges Lengthwise and Center SlotsBlackPart 2780Element 4121715 or 2780261 spare in the box×4
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×4
Technic Rotation Joint Ball Loop with Two Perpendicular Pins with FrictionTanPart 47455Element 6629410 or 4217983×11
Bricks Curved
16 pieces
Brick Curved 6 x 1GreenPart 42022Element 4160395×2
Brick Curved 6 x 1TanPart 42022Element 4624701 or 4160389×8
Brick Curved Inverted 6 x 1TanPart 42023Element 6495042 or 6030729×6
Plates Wedged
16 pieces
Wedge Plate 3 x 2 LeftBlackPart 43723Element 4180536×1
Wedge Plate 3 x 2 RightBlackPart 43722Element 4180508×1
Wedge Plate 4 x 2 LeftBlackPart 41770Element 4161332Also in Dark Bluish Gray×2
Wedge Plate 4 x 2 RightBlackPart 41769Element 4160869Also in Dark Bluish Gray×2
Wedge Plate 8 x 3, 22° LeftBlackPart 50305Element 4251394×2
Wedge Plate 8 x 3, 22° RightBlackPart 50304Element 4251393×2
Wedge Plate 4 x 2 LeftDark Bluish GrayPart 41770Element 4210788Also in Black×1
Wedge Plate 4 x 2 RightDark Bluish GrayPart 41769Element 4210782Also in Black×1
Wedge Plate 3 x 2 LeftLight Bluish GrayPart 43723Element 4211794×1
Wedge Plate 3 x 2 RightLight Bluish GrayPart 43722Element 4211791×1
Wedge Plate 4 x 2 LeftTanPart 41770Element 6177891 or 4545384×1
Wedge Plate 4 x 2 RightTanPart 41769Element 6177890 or 4616490×1
Technic Bricks
10 pieces
Technic Brick 1 x 1 with Pin HoleBlackPart 6541Element 654126×2
Technic Brick 1 x 2 [1 Pin Hole]BlackPart 3700Element 370026×2
Technic Brick 1 x 4 [3 Pin Holes]Dark OrangePart 3701Element 6618738 or 4263068×4
Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening]Light Bluish GrayPart 32064b×2
Plates Round Curved and Dishes
6 pieces
Plate Round 1 x 1 with Solid StudTrans-Dark BluePart 6141Element 6514055 or 62402141 spare in the box×2
Plate Round 1 x 1 with Solid StudTrans-Neon GreenPart 6141Element 6240223 or 30057491 spare in the box×4
Tiles
5 pieces
Tile 2 x 2 with GrooveLight Bluish GrayPart 3068bElement 4211413×1
Tile 1 x 4 with GrooveTanPart 2431Element 4550324 or 4542398×4
Technic Axles
4 pieces
Technic Axle 2 NotchedBlackPart 32062Element 4109810 or 3206226×4
Bricks Special
2 pieces
Brick Special 1 x 4 with 4 Studs on One SideBlackPart 30414Element 4162443×2
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.
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.