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.
Technic Beam 1 x 11 ThickBlack ×10Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow SpokesLight Bluish GrayPart 55982Element 4490127×6
Wheel 30.4 x 20 without Pinholes, with Reinforced RimLight Bluish GrayPart 56145Element 4297210×5
Wheel 43.2 x 26 Technic Racing Small with 3 PinholesLight Bluish GrayPart 41896Element 4211788×1
Projectiles / Launchers
10 pieces
Launcher, Large Figure Weapon Cannon, Midak Skyblaster with Black Housing [Complete Assembly]Pearl Light GrayPart 62233Element 4521177×2
Projectile, Large Figure Weapon, Zamor Sphere / BallPearl Light GrayPart 54821Element 4494056 or 4291759×8
Animal / Creature Body Parts
8 pieces
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallPearl Light GrayPart 53451Element 4568390 or 44940861 spare in the box×8
String, Bands and Reels
6 pieces
Rubber Belt Small [15mm ID] [Round Cross Section]WhitePart 85543Element 6699001 or 4580665×6
Technic Special
6 pieces
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]Trans-Neon GreenPart 41669Element 4163577×6
Bricks Round and Cones
3 pieces
Cone 2 x 2 x 2, Open StudWhitePart 3942cElement 6044601 or 6022158×3
Technic Steering, Suspension and Engine
3 pieces
Technic Link 1 x 9BlackPart 32293Element 6244698 or 4141300×3
Technic Beams Special
2 pieces
Technic Beam 3 x 0.5 Liftarm with Boss and Pin / CrankLight Bluish GrayPart 33299aElement 4211688×2
Plates Round Curved and Dishes
1 piece
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)WhitePart 4032aElement 6601914 or 403201×1
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.