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 Round 1 x 1 with Solid StudBlack ×3Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallBlackPart 53451Element 6270103 or 45683851 spare in the box×1
Animal / Creature Body Part, Tail / Claw / Horn / Branch / Tentacle, End Section, LargeReddish BrownPart 67361Element 6383996×1
Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip)Reddish BrownPart 80497Element 6382326×1
Animal Body Part, Cat TailReddish BrownPart 15429Element 6528152 or 6222217×4
Animal Body Part, Cat TailWhitePart 15429Element 6554422 or 6222201×2
Bricks Sloped
6 pieces
Brick Sloped 30° 1 x 2 x 2/3Pearl GoldPart 85984Element 6134284×6
Minifig Shields, Weapons, & Tools
6 pieces
Weapon Harpoon [Smooth Shaft]Pearl GoldPart 18041Element 6162580 or 61213521 spare in the box×6
Pneumatics
5 pieces
Pneumatic Hose Connector with Axle ConnectorDark BrownPart 99021Element 6265670 or 6167942×4
Pneumatic T-Piece (T Bar) [New Style]Pearl GoldPart 4697bElement 6452472 or 61679301 spare in the box×1
Technic Bricks
5 pieces
Technic Brick 4 x 4 with 2 x 2 OpeningBlackPart 32324Element 6222427 or 4226981×1
Technic Brick Special 1 x 2 with Pin Hole and 1 x 2 PlateBlackPart 73109Element 6506032×1
Technic Brick 1 x 1 with Axle HoleRedPart 73230Element 6473604×2
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom PinTanPart 32064aElement 6219794 or 4233494×1
Wheels and Tyres
5 pieces
Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow SpokesPearl GoldPart 55981Element 6109685 or 6054532×4
Wheel 31 x 15 Technic, 7 Pin HolesWhitePart 60208Element 6524592 or 4512751×1
String, Bands and Reels
4 pieces
Chain 2L with BarsPearl GoldPart 6981Element 6512378×2
Chain 6L [5 Links]Pearl GoldPart 92338Element 6323688 or 4600501×2
Bricks
3 pieces
Brick 2 x 2LimePart 3003Element 4220632 or 4122451×3
Minifig Heads
1 piece
Minifig Head [Plain] [Vented Stud - 2 Holes]WhitePart 28621Element 6550193 or 6454713×1
Tools
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
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.