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.
LEGO counts 214 pieces. This inventory comes from a separate parts catalog and lists 217; the two do not always count the same elements, so their totals differ. 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 Axle Connector 2 x 3 with Ball Socket, Open SidesBlack ×12Dark Bluish Gray ×9Black is darker than Dark Bluish Gray.
Technic Beam Triangle Thin [Type I]Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Axle 5Light Bluish GrayPart 32073Element 32073194 or 4211639×2
Technic Axle Connector 2 x 3 with Ball Socket, Open SidesLight Bluish GrayPart 32174Element 4240563×2
Technic BushLight Bluish GrayPart 3713Element 6275844 or 6271817×3
Technic Pin Long without Friction Ridges - Single SlotLight Bluish GrayPart 32556aElement 4211709×2
Pearl Light Gray
22 pieces
Large Figure Limb Cover (Toa Metru)Pearl Light GrayPart 47299Element 4285683 or 4227072×3
Large Figure Skeletal, Torso with 6 Holes (Matoran)Pearl Light GrayPart 47295Element 4238327×1
Large Figure Weapon Blade, Air KatanaPearl Light GrayPart 44033Element 4178663×1
Large Figure Weapon Staff, Bladed Chronicler's StaffPearl Light GrayPart 48253Element 4284481 or 4221325×2
Large Figure Weapon Sword, Lava Greatsword / Shield Half (Toa Lhikan)Pearl Light GrayPart 53070Element 4265626 or 4265151×2
Large Figure Weapon, Claw, Triple, with AxlePearl Light GrayPart 32506Element 4284479 or 4236020×2
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HolePearl Light GrayPart 32184Element 4177429×1
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]Pearl Light GrayPart 41669Element 4284480 or 4177440×10
Blue
14 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×14
Dark Red
9 pieces
Large Figure Skeletal, Limb, with 2 Ball Joints (Toa Metru)Dark RedPart 47297Element 4541387 or 4290013×2
Large Figure Skeletal, Limb, with 2 Ball Joints, and Hole (Toa Metru)Dark RedPart 47311Element 4278744 or 4218960×2
Large Figure Skeletal, Torso (Toa Metru)Dark RedPart 47305Element 4218953×1
Technic Axle and Pin Connector 2 x 5 with Two Ball Joint SocketsDark RedPart 47296Element 4252394×4
Flat Dark Gold
8 pieces
Large Figure Chest Cover (Toa Metru)Flat Dark GoldPart 49423Element 4265175×1
Large Figure Foot, Toa MetruFlat Dark GoldPart 47298Element 4265164×2
Large Figure Limb Cover (Toa Metru)Flat Dark GoldPart 47299Element 4265166×2
Large Figure Mask Hau (Toa Lhikan)Flat Dark GoldPart 53069Element 4265622 or 4265150×1
Large Figure Shoulder Cover, Armor (Toa Metru)Flat Dark GoldPart 47310Element 4265174×2
Pearl Dark Gray
4 pieces
Large Figure Back Cover with Groove (Rahkshi)Pearl Dark GrayPart 44140Element 4215834 or 4196965×2
Large Figure Chest Cover, Armor, Toa NuvaPearl Dark GrayPart 43558Element 4196973×1
Technic Beam 1 x 15 ThickPearl Dark GrayPart 32278Element 4227469×1
Trans-Red
2 pieces
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]Trans-RedPart 41669Element 4163567×2
Pearl Black
1 piece
Large Figure Foot, RahkshiPearl BlackPart 44138Element 4191677×1
Trans-Neon Green
1 piece
Large Figure Head Connector Block Eye/Brain Stalk (Toa Metru)Trans-Neon GreenPart 47313Element 4238920 or 4218955×1
White
1 piece
Technic Axle 5.5 with Stop [Flat Short End]WhitePart 32209Element 4120471×1
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.