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.
Plate 2 x 4Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Shield Ovoid with Grip with Black Oval (Eye) PrintWhitePart 92747pr0011Element 6602320×2
Technic Axles
2 pieces
Technic Axle 4RedPart 3705Element 6129995 or 4265797×1
Technic Axle 7YellowPart 44294Element 6130009×1
Technic Bushes
2 pieces
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×2
Technic Pins
2 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×1
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L AxleDark Bluish GrayPart 11214Element 6015356×1
Bricks Wedged
1 piece
Brick Wedged, Curved 2 x 2 with Stud Notches with Bright Pink Band PrintLight Bluish GrayPart 66956pr0003Element 6595910×1
Pneumatics
1 piece
Pneumatic T-Piece (T Bar) [New Style]BlackPart 4697bElement 61042091 spare in the box×1
Technic Bricks
1 piece
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 PlateWhitePart 73109Element 6619302 or 6342970×1
Wheels and Tyres
1 piece
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingLight Bluish GrayPart 13971Element 6359807 or 6044729×1
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.