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.
1,155 pieces in 314 part and color combinations, plus 6 minifigures.
The official piece count includes the 32 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.
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]Light Bluish Gray ×2Flat Silver ×2Light Bluish Gray is lighter than Flat Silver.
Bracket 1 x 2 - 2 x 2Black ×4Dark Blue ×7Black is yellower and darker than Dark Blue.
Brick Curved 2 x 2 x 2/3Black ×2Dark Blue ×8Black is yellower and darker than Dark Blue.
Brick Sloped 30° 1 x 2 x 2/3Black ×10Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBlack ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate 1 x 3Black ×6Dark Blue ×2Black is yellower and darker than Dark Blue.
10 more look-alike pairs
Plate 2 x 2Black ×2Dark Blue ×6Black is yellower and darker than Dark Blue.
Plate 2 x 3Black ×6Dark Blue ×12Black is yellower and darker than Dark Blue.
Tile Special 2 x 2 Corner with Cut Corner - FacetBlack ×4Dark Blue ×4Black is yellower and darker than Dark Blue.
Tile Special 2 x 3 PentagonalBlack ×4Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick Sloped 30° 1 x 2 x 2/3Black ×10Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Panel 1 x 2 x 1 with Rounded Corners and 2 SidesBlack ×2Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×7Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Open StudBlack ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Technic Brick 1 x 2 [2 Pin Holes]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tyre 56 x 26 BalloonBlackPart 55976Element 6495636 or 4297209×4
Wheel 30.4 x 20 without Pinholes, with Reinforced RimPearl GoldPart 56145Element 4648531×5
Panels
8 pieces
Panel 1 x 2 x 1 with Rounded Corners and 2 SidesBlackPart 23969Element 6248496 or 6174845Also in Dark Bluish Gray×2
Panel 1 x 2 x 1 with Rounded Corners and 2 SidesDark Bluish GrayPart 23969Element 6275131Also in Black×6
Hinges, Arms and Turntables
6 pieces
Hinge Plate 1 x 2 Locking with 1 Finger On End, without GrooveBlackPart 44301bElement 6266224×2
Hinge Plate 1 x 2 Locking with 2 Fingers On End, without Groove, 7 TeethBlackPart 54657Element 6267045×2
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]WhitePart 1927Element 6497109 or 6416527×2
Minifig Upper Body
6 pieces
Arm Mechanical with Clip [Thick Support]Pearl GoldPart 98313Element 6262192 or 6006741×6
Technic Beams
5 pieces
Technic Beam 1 x 3 ThickBlackPart 32523Element 4142822 or 3252326×2
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleLight Bluish GrayPart 60483Element 6265089 or 6004888×2
Technic Beam 1 x 2 ThinLight Bluish GrayPart 41677Element 6348143 or 4211741×1
Windscreens and Fuselage
5 pieces
Windscreen 6 x 6 x 2 CanopyDark BluePart 87606Element 6521176×2
Windscreen 8 x 4 x 2 with Handle and 2 Studs [Solid Studs] [Plain]Dark BluePart 21849Element 6576494 or 6521174×2
Windscreen 6 x 4 x 1 Hexagonal with HandleTrans-ClearPart 27262Element 6521180×1
Projectiles / Launchers
4 pieces
Launcher Trigger, Weapon Gun TriggerDark Bluish GrayPart 69755Element 63606751 spare in the box×2
Launcher, Plate Special 1 x 2 with Mini Blaster SquarePearl GoldPart 69754Element 6345949×2
Bars, Ladders and Fences
3 pieces
Bar Holder with ClipPearl GoldPart 11090Element 6252838 or 6078364×2
Bar 1L with Top Stud and Two Side StudsPearl TitaniumPart 92690Element 6158415×1
Flags, Banners and Signs
2 pieces
Flag 2 x 2 Trapezoid with Flared Area between ClipsWhitePart 80324Element 6365500×2
Large Buildable Figures
2 pieces
Large Figure Wing, SmallPearl GoldPart 61800Element 6213766×2
Windows and Doors
2 pieces
Window 1 x 2 x 2 Flat FrontWhitePart 60592Element 6550187 or 6382045×2
Stickers
1 piece
Sticker Sheet for Set 71834-1[No Color/Any Color]Part 10110234Element 6518783×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
6 figures
Dragonian Scout, Shoulder ArmorMinifigure, checked as a whole figure×1
Sora, Gold HelmetMinifigure, checked as a whole figure×1
Dragonian Warrior, Short Horns, 28621pr9762 HeadMinifigure, checked as a whole figure×1
P.I.X.A.L., White Suit, Silver HairMinifigure, checked as a whole figure×1
NoktMinifigure, checked as a whole figure×1
Cole, Black HelmetMinifigure, 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.