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.
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.
Large Figure Skeletal, Limb, with 2 Ball Joints, and 3 Holes (Rahkshi)Black ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Axle Connector 2 x 3 with Ball Socket, Open SidesBlack ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector PerpendicularBlack ×5Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 ThinBlack ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Axle 5Light Bluish GrayPart 32073Element 32073194 or 4211639×2
Technic BushLight Bluish GrayPart 3713Element 6275844 or 6271817×9
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 4211573×2
Dark Bluish Gray
26 pieces
Large Figure Skeletal, Limb, with 2 Ball Joints, and 3 Holes (Rahkshi)Dark Bluish GrayPart 45749Element 4294580 or 4210948Also in Black×1
Large Figure Skeletal, Limb, with 2 Ball Joints, and 3 Holes (Vahki)Dark Bluish GrayPart 47328Element 4289386 or 4248827×2
Rip Cord, Rhotuka, 12L with Connector Block 1 x 3 x 5Dark Bluish GrayPart 50900Element 4255384 or 4242039×1
Technic Axle Connector 2 x 3 with Ball Socket and Axle Socket with Black Rubber InsertDark Bluish GrayPart 47326pat0001Element 4223771×6
Technic Axle Connector 2 x 3 with Ball Socket, Open SidesDark Bluish GrayPart 32174Element 4217829Also in Black×3
Technic Axle and Pin Connector 2 x 5 with Two Ball Joint SocketsDark Bluish GrayPart 47296Element 4217826×1
Technic Axle and Pin Connector PerpendicularDark Bluish GrayPart 6536Element 6536199 or 6261374Also in Black×1
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesDark Bluish GrayPart 42003Element 6273715 or 4210857Also in Black×2
Technic Beam 1 x 2 ThinDark Bluish GrayPart 41677Element 6338422 or 4210980Also in Black×2
Technic Beam 1 x 2 with Ball Joint AngledDark Bluish GrayPart 50923Element 4503381 or 4289258×1
Technic Beam 1 x 3 ThinDark Bluish GrayPart 6632Element 6632199 or 6364452×4
Technic Beam 2 x 4 L-Shape ThickDark Bluish GrayPart 32140Element 6271830 or 4210667×2
Blue
15 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×15
Bright Light Orange
15 pieces
Large Figure Foot, Toa HordikaBright Light OrangePart 50919Element 4248367×1
Large Figure Foot, Toa MetruBright Light OrangePart 47298Element 4521191 or 4248228×2
Technic Axle Connector with Axle HoleBright Light OrangePart 32039Element 4248903×1
Technic Axle and Pin Connector 2 x 5 with Two Ball Joint SocketsBright Light OrangePart 47296Element 4248900×2
Technic Beam 1 x 7 Bent (4 - 4) ThickBright Light OrangePart 32348Element 4248235×2
Technic Block 3 x 5 x 1 2/3Bright Light OrangePart 32310Element 4248241×1
Technic Connector Block 3 x 3 Triangular with Axle, and Pin HoleBright Light OrangePart 32175Element 4248237×6
Trans-Neon Orange
2 pieces
Bar 1L with ClipTrans-Neon OrangePart 48729aElement 4252081×2
Glow In Dark Opaque
1 piece
Plate Round 1 x 1 with Solid StudGlow In Dark OpaquePart 6141Element 4252392×1
Yellow
1 piece
Large Figure Spinner Rod 2.5L with Gear 8 Tooth (Rhotuka)YellowPart 50903Element 4263698×1
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.