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.
Brick 1 x 1White ×2Trans-Clear ×2Trans-Clear is see-through: hold the piece up to a light.
Tyre 15 x 6 Offset Tread Small with Band around CenterBlackPart 87414Element 4578677×4
Wheel 8 x 6 with SlotWhitePart 34337Element 61948091 spare in the box×4
Hinges, Arms and Turntables
6 pieces
Hinge Brick 1 x 2 BaseWhitePart 3937Element 6619287 or 393701×3
Hinge Brick 2 x 2 Top Plate ThinWhitePart 6134Element 6548272 or 4612342×3
Technic Bricks
4 pieces
Technic Brick 1 x 1 with Pin HoleMedium AzurePart 6541Element 6145253×4
Technic Connectors
4 pieces
Technic Pin Connector Hub with 1 AxleWhitePart 22961Element 6179606×4
Tiles Special
4 pieces
Tile Special Round 1 x 1 with Hollow BarBright Light OrangePart 20482Element 62237191 spare in the box×2
Tile Special Round 1 x 1 with Hollow BarYellowish GreenPart 20482Element 62235061 spare in the box×2
Plates Wedged
3 pieces
Wedge Plate 2 x 2 Cut CornerMedium AzurePart 26601Element 6249415×2
Wedge Plate 2 x 4YellowPart 51739Element 4260192×1
Technic Bushes
2 pieces
Technic BushRedPart 3713Element 6271820 or 42271551 spare in the box×2
Animal / Creature Body Parts
1 piece
Creature Body Part, Horn (Unicorn)Pearl GoldPart 89522Element 6214208 or 45847621 spare in the box×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
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.