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.
1,001 pieces in 263 part and color combinations, plus 8 minifigures.
The official piece count includes the 49 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.
Brick Curved 2 x 2 x 2/3Tan ×1Dark Tan ×7Tan is lighter than Dark Tan.
Brick Wedged, Curved 2 x 1 with Stud Notch LeftTan ×3Dark Tan ×2Tan is lighter than Dark Tan.
Brick Wedged, Curved 2 x 1 with Stud Notch RightTan ×3Dark Tan ×2Tan is lighter than Dark Tan.
Plate 2 x 2Tan ×2Dark Tan ×13Tan is lighter than Dark Tan.
Bar 4L (Lightsaber Blade / Wand)Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic BushLight Bluish GrayPart 3713Element 6275844 or 62718171 spare in the box×1
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×2
Tiles
3 pieces
Tile 1 x 2 with GrooveLight Bluish GrayPart 3069bElement 4211414×2
Tile 1 x 1 with GrooveTrans-OrangePart 3070bElement 6514258 or 62542521 spare in the box×1
Hinges, Arms and Turntables
2 pieces
Turntable 2 x 2 FemaleDark OrangePart 27448Element 6536571 or 6375188×2
Minifig Headwear
2 pieces
Headwear, Pearl Titanium Beetle Claws PatternDark TanPart 7551pat0001Element 6555185×2
Pneumatics
2 pieces
Pneumatic Hose Connector with Axle ConnectorDark BrownPart 99021Element 6265670 or 6167942×2
Technic Steering, Suspension and Engine
2 pieces
Technic Link 1 x 6 without StoppersBlackPart 32005aElement 4629921 or 4530733×2
Transportation - Sea and Air
2 pieces
Propeller 1 Blade 2 x 16 with AxlePearl GoldPart 98135Element 6270129 or 6248488×2
Minifig Accessories
1 piece
Tassel with 1 x 1 Round StudPearl GoldPart 25375Element 6274711 or 6251548×1
Minifig Heads
1 piece
Minifig Head [Plain] [Vented Stud - 2 Holes]Trans-Bright GreenPart 28621Element 6513994 or 6276022×1
Panels
1 piece
Panel 2 x 2 x 1 Corner Posts with Centre StudLight Bluish GrayPart 3131Element 6506831×1
Stickers
1 piece
Sticker Sheet for Set 71859-1[No Color/Any Color]Part 10115055Element 65578612 or 6578612×1
Tools
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Minifigures
8 figures
Acid Monster, TailMinifigure, checked as a whole figure×1
Sora, Mask (Draconus Robes)Minifigure, checked as a whole figure×1
Zane, Shoulder Armor (Draconus Robes)Minifigure, checked as a whole figure×1
Cole (Draconus Form)Minifigure, checked as a whole figure×1
Lloyd (Draconus Form)Minifigure, checked as a whole figure×1
Earth MonsterMinifigure, checked as a whole figure×1
Arin (Draconus Robes)Minifigure, checked as a whole figure×1
Loyalist LeaderMinifigure, 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.