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.
1,109 pieces in 338 part and color combinations, plus 5 minifigures.
The official piece count includes the 22 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 Round 1 x 1 Open StudRed ×2Trans-Red ×2Trans-Red is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudRed ×6Trans-Red ×2Trans-Red is see-through: hold the piece up to a light.
Plate 1 x 2Black ×4Dark Blue ×5Black is yellower and darker than Dark Blue.
Plate 2 x 2Black ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Tile 1 x 4 with GrooveBlack ×2Dark Blue ×5Black is yellower and darker than Dark Blue.
Tile 1 x 8 with GrooveBlack ×2Dark Blue ×4Black is yellower and darker than Dark Blue.
7 more look-alike pairs
Tile 2 x 2 with GrooveBlack ×2Dark Blue ×7Black is yellower and darker than Dark Blue.
Tile 2 x 6Black ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick 2 x 2Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×5Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 2 x 2 with GrooveBlack ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Tyre 21 x 6 City MotorcycleBlackPart 50861Element 6064174 or 4244953×2
Wheel Centre 15 x 6 City Motorcycle with Stub AxlesRedPart 50862Element 6572696 or 6413493×2
Technic Gears
3 pieces
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]BlackPart 18575Element 6346535 or 6093977×1
Technic Turntable Large Type 4 Top, 60 ToothBlackPart 88738Element 6413529×1
Technic Turntable Large Type 3 BaseLight Bluish GrayPart 18939Element 6109285×1
Flags, Banners and Signs
2 pieces
Flag 5 x 6 Hexagonal with U ClipsTrans-Light BluePart 17979Element 6558263×2
Transportation - Sea and Air
2 pieces
Tail ShuttleDark BluePart 6239Element 6482963 or 6127113×2
Windscreens and Fuselage
2 pieces
Windscreen 10 x 6 x 2 CurvedDark BluePart 45705Element 6482973 or 4503726×1
Windscreen 10 x 6 x 2 Curved with Light Bluish Grey/Dark Bluish Grey Cockpit PrintTrans-Dark BluePart 45705pr0008Element 6569499×1
Minifig Accessories
1 piece
Book Cover [Plain]Trans-Light BluePart 24093Element 6311467×1
Minifig Shields, Weapons, & Tools
1 piece
Weapon Bow and Arrow RecurveBlackPart 3748Element 6450613×1
Stickers
1 piece
Sticker Sheet for Set 76325-1[No Color/Any Color]Part 10113408Element 6545012×1
Tools
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Minifigures
5 figures
UltronMinifigure, checked as a whole figure×1
Quicksilver, Sand Blue TorsoMinifigure, checked as a whole figure×1
Black Widow, Black Jumpsuit, Printed Legs (85974 Hair)Minifigure, checked as a whole figure×1
Iron Man Mark 43 Armor, Red PanelsMinifigure, checked as a whole figure×1
Hawkeye, Black Suit, QuiverMinifigure, 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.