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.
746 pieces in 267 part and color combinations, plus 7 minifigures.
LEGO counts 777 pieces. This inventory comes from a separate parts catalog and lists 773, including the 27 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.
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.
Cone 1 x 1 [Top Groove]Trans-Brown ×2Dark Bluish Gray ×1Trans-Brown is see-through: hold the piece up to a light.
Brick Arch 1 x 4Reddish Brown ×4Dark Brown ×5Reddish Brown is redder and lighter than Dark Brown.
Brick Special 1 x 1 with Stud on 1 SideReddish Brown ×18Dark Brown ×4Reddish Brown is redder and lighter than Dark Brown.
Brick Wedged, Curved 2 x 1 with Stud Notch LeftReddish Brown ×1Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Brick Wedged, Curved 2 x 1 with Stud Notch RightReddish Brown ×1Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Equipment Wand [Individual]Reddish Brown ×2Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
8 more look-alike pairs
Plate Special 1 x 2 with Clip Horizontal on EndReddish Brown ×2Dark Brown ×2Reddish Brown is redder and lighter than Dark Brown.
Tile 1 x 3Reddish Brown ×2Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Tile 1 x 4 with GrooveReddish Brown ×5Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Cone 1 x 1 [Top Groove]Black ×3Trans-Brown ×2Trans-Brown is see-through: hold the piece up to a light.
Cone 1 x 1 [Top Groove]Black ×3Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Tile Round 3 x 3Glow in Dark WhitePart 67095Element 6345579×1
Pearl Gold
1 piece
Tile Special 1 x 2 Grille with Bottom GroovePearl GoldPart 2412bElement 4490599×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 76407-1[No Color/Any Color]Part 10077931Element 6340588×1
Minifigures
7 figures
Ron Weasley, Dark Red Sweater, Medium LegsMinifigure, checked as a whole figure×1
Hermione Granger, Bright Pink Hoodie over Dark Pink Shirt, Medium Legs, Smirk / AngryMinifigure, checked as a whole figure×1
Harry Potter, Dark Blue Jacket Dirty, Medium Legs, Closed MouthMinifigure, checked as a whole figure×1
Remus Lupin, Dark Tan Suit, Reddish Brown HairMinifigure, checked as a whole figure×1
Peter Pettigrew, Black SuitMinifigure, checked as a whole figure×1
Sirius Black, Dark Bluish Gray Prison Outfit with Long Jacket, Plain LegsMinifigure, checked as a whole figure×1
Werewolf (Professor Remus Lupin)Minifigure, checked as a whole figure×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.