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.
3,107 pieces in 643 part and color combinations, plus 13 minifigures.
The official piece count includes the 71 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 ×4Flat Silver ×1Light Bluish Gray is lighter than Flat Silver.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Dark Tan ×12Tan ×22Dark Tan is darker than Tan.
Plate 2 x 8Tan ×5Dark Tan ×14Tan is lighter than Dark Tan.
Plate 1 x 4Black ×12Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate 1 x 10Dark Bluish Gray ×2Black ×3Dark Bluish Gray is lighter than Black.
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]Dark Bluish Gray ×2Black ×3Dark Bluish Gray is lighter than Black.
5 more look-alike pairs
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]Black ×1Dark Bluish Gray ×13Black is darker than Dark Bluish Gray.
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic Beam 1 x 15 ThickDark Bluish Gray ×2Black ×2Dark Bluish Gray is lighter than Black.
Technic Brick 1 x 12 [11 Pin Holes]Dark Bluish Gray ×2Black ×1Dark Bluish Gray is lighter than Black.
Tile 1 x 2 with GrooveDark Bluish Gray ×3Black ×3Dark Bluish Gray is lighter than Black.
Box 2 x 2 x 2 [Hollow Studs]BlackPart 4345bElement 6138634 or 4143247×2
Trash Can with 4 Cover HoldersDark Bluish GrayPart 92926Element 6171068 or 4626645×1
Barrel 2 x 2 x 2Dark BrownPart 2489Element 6605459 or 6278987×1
Box 2 x 2 x 2 Door with SlotLight Bluish GrayPart 4346Element 4211492×2
Box 2 x 2 x 2 [Hollow Studs]Light Bluish GrayPart 4345bElement 4211491×1
Box / Crate with Handholds 3 x 4 x 1 2/3Medium NougatPart 30150Element 6035734×1
Container Box 2 x 2 x 2 - Top OpeningReddish BrownPart 61780Element 4520638×3
Box 2 x 2 x 2 Door with SlotTrans-ClearPart 4346Element 6499105 or 6247357×1
Transportation - Land
11 pieces
Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 StudsBlackPart 47755Element 4525236×1
Seat / Chair 2 x 2 with Center Sprue MarkDark Bluish GrayPart 4079bElement 4524930×1
Wheel Arch, Mudguard 4 x 2 1/2 x 1Dark Bluish GrayPart 98282Element 6170503 or 4646522×2
Engine / Air Scoop 2 x 2Flat SilverPart 50943Element 6076604×1
HandlebarsFlat SilverPart 30031Element 6158405×1
Steering Wheel Small, 2 x 2 [Reinforced]Light Bluish GrayPart 16091Element 6092956 or 6061697×4
Seat / Chair 2 x 2 with Center Sprue MarkReddish BrownPart 4079b×1
Flags, Banners and Signs
10 pieces
Flag 2 x 2 Square, Flat Clip Edge [Thick Clips]BlackPart 11055Element 6011815×2
Road Sign Clip-on 2 x 2 Square [Thick Open O Clip]Dark Bluish GrayPart 15210Element 6315300 or 6063616×4
Flag 2 x 2 Trapezoid with Flat Area between ClipsSand GreenPart 44676Element 6155255×4
Animal / Creature Body Parts
7 pieces
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallFlat SilverPart 53451Element 6270108 or 46129012 spares in the box×7
Minifig Headwear
6 pieces
Hair MohawkBlackPart 93563Element 6392218 or 6330276×1
Hair Wide Mohawk with Coiled TextureBlackPart 27385Element 6478765 or 61581921 spare in the box×2
Hair MohawkDark BrownPart 93563Element 6253910×1
Helmet Castle with Neck ProtectorMetallic SilverPart 3844Element 6051870 or 4506011×1
Hat / Helmet, Aviator CapReddish BrownPart 30171Element 4507049 or 4211187×1
Minifig Heads
5 pieces
Minifig Head Robo Skeleton, Skull with Red Eyes, Metal Eyebrows with Rivets and Metal Jaw with Screws Print [Hollow Stud]Flat SilverPart 3626cpr1336Element 6261653×5
Pneumatics
4 pieces
Pneumatic Hose Connector with Axle ConnectorDark Bluish GrayPart 99021Element 6265669 or 6020189×4
String, Bands and Reels
4 pieces
Chain 16L [21 Links]Dark Bluish GrayPart 60169Element 6258887 or 4516456×4
Technic Special
4 pieces
Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle HoleReddish BrownPart 32124Element 6280388 or 6035580×4
Animals / Creatures
3 pieces
Animal, Fish [Hollow Stud Mouth]Bright Light BluePart 64648Element 6195347×1
Animal, Rodent, Rat / Mouse with Black Eyes PrintDark TanPart 36756pr0001Element 6226594 or 6226382×1
Animal, FrogYellowPart 33320Element 6171104 or 4593780×1
Wheels and Tyres
3 pieces
Tyre 15 x 6 Offset Tread Small with Band around CenterBlackPart 87414Element 4578677×1
Tyre Offset Tread with Center Band 23 x 7BlackPart 61254Element 4541455×1
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingLight Bluish GrayPart 13971Element 6359807 or 6044729×1
Energy Effects
2 pieces
Wave / Flame Rounded with Base RimTrans-Light BluePart 6126bElement 6167739×1
Flame / Headwear Accessory Plume / Feather, Triple PointTrans-OrangePart 64647Element 6314353 or 61000441 spare in the box×1
Minifig Lower Body
2 pieces
Leg SkeletonLight Bluish GrayPart 6266Element 6423983 or 6240497×2
Technic Beams Special
2 pieces
Technic Beam 3 x 0.5 Liftarm with Boss and Pin Semi-ReducedLight Bluish GrayPart 33299bElement 4563045×2
Tubes and Hoses
2 pieces
Flexible Hose 8.5L with Tabless Ends (Fixed Ends same color as Tube)BlackPart 73590c03aElement 6327402 or 6288582×2
Windscreens and Fuselage
2 pieces
Windscreen 2 x 4 x 2Trans-BrownPart 3823Element 6253684 or 4167504×1
Windscreen 2 x 6 x 2, Thin TopTrans-BrownPart 35336Element 6510173 or 6245192×1
Minifig Headwear Accessories
1 piece
Headwear Accessory Glasses / GogglesDark Bluish GrayPart 30170Element 6170695 or 42106451 spare in the box×1
Non-System Parts
1 piece
Curtain, Stepped with Three HoleDark TanPart 36964Element 6257805×1
Plants & Trees
1 piece
Plant, Flower Stem with Bar and 6 StemsDark OrangePart 19119Element 6269941 or 6151196×1
Rock
1 piece
Rock 1 x 1 Crystal 5 PointYellowPart 30385Element 6589629 or 6194508×1
Stickers
1 piece
Sticker Sheet for Set 70840-1[No Color/Any Color]Part 53482Element 6263756×1
Technic Steering, Suspension and Engine
1 piece
Technic Steering Arm 5 x 1 with Towball Socket (Type2)Light Bluish GrayPart 31794Element 6247352×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Transportation - Sea and Air
1 piece
Propeller 3 Blade SmallBlackPart 2421Element 6170693 or 4289255×1
Minifigures
13 figures
Harley Quinn, ApocalypseburgMinifigure, checked as a whole figure×1
Chainsaw DaveMinifigure, checked as a whole figure×1
Bad Cop / Scribble-face Cop, ApocalypseburgMinifigure, checked as a whole figure×1
Mo-HawkMinifigure, checked as a whole figure×1
Larry the Barista, ApocalypseburgMinifigure, checked as a whole figure×1
RoxxiMinifigure, checked as a whole figure×1
Green Lantern, Hal Jordan, ApocalypseburgMinifigure, checked as a whole figure×1
FuseMinifigure, checked as a whole figure×1
Skeleton, Robot, MannequinMinifigure, checked as a whole figure×1
Emmet, Worn Outfit, Happy / ScaredMinifigure, checked as a whole figure×1
Lucy Wyldstyle, Goggles, Scarf, QuiverMinifigure, checked as a whole figure×1
Where Are My Pants? Guy, ApocalypseburgMinifigure, checked as a whole figure×1
Batman, Battle Armor, Brown BootsMinifigure, 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.