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.
Technic Axle 6RedPart 3706Element 6130002 or 4191526×1
Animal / Creature Body Parts
4 pieces
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, LargeDark TanPart 11089Element 6553845×1
Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End SectionLight Bluish GrayPart 40379Element 6383116×1
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallTanPart 53451Element 60636711 spare in the box×2
Bars, Ladders and Fences
4 pieces
Bar Holder with Hole and Bar HandleLight Bluish GrayPart 23443Element 6343976 or 6152107×1
Bar 4L (Lightsaber Blade / Wand)LimePart 30374Element 6327442×1
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]Reddish BrownPart 3484Element 6439053×2
Technic Connectors
4 pieces
Technic Axle Connector 2 x 3 with Ball Socket, Closed SidesBlackPart 67695Element 6338289×2
Technic Pin Connector Round 1L [Beam]LimePart 18654Element 63027411 spare in the box×2
Technic Pins
3 pieces
Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotBluePart 42924Element 6299413×2
Technic Pin 1/2 with FrictionDark Bluish GrayPart 89678Element 63956351 spare in the box×1
Tiles Special
3 pieces
Tile Special Round 1 x 1 with Hollow BarBright GreenPart 20482Element 64006491 spare in the box×3
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.