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.
709 pieces in 181 part and color combinations, plus 11 minifigures.
LEGO counts 764 pieces. This inventory comes from a separate parts catalog and lists 763, including the 54 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Animal, Horse, Movable Head, Black Eyes Circled with White, Brown Bridle PrintBlackPart 4493c01pr0002Element 4225611 or 4107518×1
Animal, Horse, Movable Head, Black Eyes, Red Bridle, Black Mane PrintBrownPart 4493c01pr0001Element 74323×1
Animal, Horse, Movable Head, Black Eyes, White Pupils, Brown Bridle PrintWhitePart 4493c01pr0011Element 4121830 or 73408×1
Containers
3 pieces
Barrel 2 x 2 x 2BrownPart 2489Element 248925×1
Treasure Chest Bottom without Rear SlotsBrownPart 4738a×1
Treasure Chest Lid [Thick Hinge]BrownPart 4739aElement 473925×1
Tiles Special
3 pieces
Tile Special 1 x 1 with Clip and Straight TipsBlackPart 2555Element 255526×3
Minifig Accessories
2 pieces
Equipment SaucepanBlackPart 4529Element 452926×1
Equipment Goblet / GlassYellowPart 2343Element 626924 or 234324×1
Technic Bushes
2 pieces
Technic BushLight GrayPart 3713Element 4125313 or 659002×1
Technic Bush 1/2 Toothed Type I [+ Opening]Light GrayPart 4265aElement 4265021 spare in the box×1
Technic Pins
2 pieces
Technic Pin 1/2 without Friction RidgesLight GrayPart 4274Element 4274021 spare in the box×1
Technic Pin without Friction Ridges LengthwiseLight GrayPart 3673Element 4184166 or 367302×1
Baseplates
1 piece
Baseplate Raised 32 x 48 with Ramp, Large Pit, and Stairs and Stones PrintGreenPart 6261pr0001×1
Technic Axles
1 piece
Technic Axle 4BlackPart 3705Element 370526×1
Tiles Round and Curved
1 piece
Tile Round 2 x 2 with Bottom CrossBluePart 4150Element 4239001 or 415023×1
Minifigures
11 figures
Knight (Scale Mail on Red) - Blue Arms, Blue Legs, Black Neck-ProtectorMinifigure, checked as a whole figure×2
King (Royal Knights) - Blue Legs, Blue Hips, CapeMinifigure, checked as a whole figure×1
Knight (Royal Knights) - Black Legs, Red Helmet, Red PlumeMinifigure, checked as a whole figure×1
Knight (Royal Knights) - Black Legs, Dark Gray Neck-ProtectorMinifigure, checked as a whole figure×2
Skeleton, Standard Face, Ball Joint Arms (3626b Head)Minifigure, checked as a whole figure×1
Ghost - Glow in the Dark, Brick Built Legs, 3626bMinifigure, checked as a whole figure×1
Knight (Scale Mail on Red) - Black Arms, Blue Legs, White PlumeMinifigure, checked as a whole figure×1
Archer (Royal Knights) - Red LegsMinifigure, checked as a whole figure×2
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.