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.
Bar 1 x 4 x 3 [End Tabs]BlackPart 62113Element 4521681×1
Bar 3LBlackPart 87994Element 6185316 or 60935251 spare in the box×2
Bar 3L with Handle, Stop Ring and Side Stops (Minifig Ski Pole)Dark Bluish GrayPart 90540Element 62506781 spare in the box×2
Bar 3LReddish BrownPart 87994Element 6428805 or 60752081 spare in the box×2
Picket Fence 1 x 4 x 2Reddish BrownPart 33303Element 6150305×4
Bricks Sloped
10 pieces
Brick Sloped 45° 2 x 1 with Bottom PinReddish BrownPart 3040bElement 4211199×4
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-Light BluePart 54200Element 6245277 or 60734451 spare in the box×6
Bricks Round and Cones
9 pieces
Brick Round 2 x 2 with Axle HoleReddish BrownPart 3941Element 4211166×3
Brick Round 1 x 1 Open StudWhitePart 3062bElement 6619283 or 306201×2
Cone 2 x 2 x 2, Open StudWhitePart 3942cElement 6044601 or 6022158×4
Tiles Round and Curved
9 pieces
Tile Round 1 x 1Dark GreenPart 98138Element 6514202 or 63971571 spare in the box×2
Tile Round 1 x 1LimePart 98138Element 6284583 or 60578781 spare in the box×2
Tile Round 2 x 2 with Tree Trunk / Wood Log PrintReddish BrownPart 14769pr1075Element 6182435×3
Tile Round 1 x 1Trans-OrangePart 98138Element 6514197 or 62747471 spare in the box×2
Plates Special
8 pieces
Plate Special 1 x 1 with Vertical ToothWhitePart 15070Element 6615559 or 6046905×4
Plate Special 2 x 3 with RocksWhitePart 27261Element 6181319×4
Plates Round Curved and Dishes
6 pieces
Dish 2 x 2 Inverted [Radar]BlackPart 4740Element 474026×2
Plate Round 1 x 1 with Solid StudBlackPart 6141Element 6141261 spare in the box×2
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Reddish BrownPart 4032aElement 4211159×2
Bricks Curved
4 pieces
Brick Arch 1 x 3 x 3 [Gothic]Reddish BrownPart 13965Element 6055086×2
Brick Curved 1 x 3 x 2 Inverted [Inside Bow]Reddish BrownPart 18653Element 6133833×2
Tiles Special
4 pieces
Tile Special 1 x 1 with Clip with Rounded EdgesBlackPart 15712Element 6335388 or 6066102×4
Bricks
2 pieces
Brick 1 x 2Reddish BrownPart 3004Element 4613963 or 4211149×2
Minifig Heads
2 pieces
Minifig Head [Plain] [Vented Stud - 2 Holes]Trans-YellowPart 28621Element 6513997 or 6300208×2
Minifig Headwear
2 pieces
Hat Ushanka with Red PrintTanPart 36933pr0001Element 6224753×2
Minifig Shields, Weapons, & Tools
2 pieces
Weapon Axe With Red HeadFlat SilverPart 39802pr0001Element 6248542×2
Technic Special
2 pieces
Technic Ball JointWhitePart 32474Element 6052864 or 4585627×2
Animals / Creatures
1 piece
Animal, Squirrel, Standing, Black Eyes and Reddish Brown Nose PrintDark OrangePart 80679pr0001Element 6384077×1
Containers
1 piece
Box / Crate with Handholds 3 x 4 x 1 2/3Reddish BrownPart 30150Element 4211185×1
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.