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.
2,363 pieces in 642 part and color combinations, plus 10 minifigures.
LEGO counts 2,405 pieces. This inventory comes from a separate parts catalog and lists 2,403, including the 40 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.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Medium Azure ×1Dark Turquoise ×1Medium Azure is lighter than Dark Turquoise.
Plate Special 2 x 2 with Only 2 studsMedium Azure ×1Dark Turquoise ×1Medium Azure is lighter than Dark Turquoise.
Window Frame 1 x 3 x 3Reddish Brown ×2Dark Brown ×7Reddish Brown is redder and lighter than Dark Brown.
Brick 1 x 2Dark Tan ×37Tan ×4Dark Tan is darker than Tan.
Brick Special 1 x 2 Palisade [aka Log]Dark Tan ×1Tan ×2Dark Tan is darker than Tan.
Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 SideTan ×21Dark Tan ×9Tan is lighter than Dark Tan.
16 more look-alike pairs
Plate 1 x 10Tan ×1Dark Tan ×3Tan is lighter than Dark Tan.
Plate 4 x 8Dark Tan ×2Tan ×1Dark Tan is darker than Tan.
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]Dark Tan ×12Tan ×2Dark Tan is darker than Tan.
Tile 2 x 4 with GrooveTan ×1Dark Tan ×6Tan is lighter than Dark Tan.
Brick 1 x 3Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Hinge Brick 1 x 2 BaseBlack ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 1 x 1 x 2/3 with Open StudBlack ×4Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 1 x 8Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 4Dark Bluish Gray ×1Black ×2Dark Bluish Gray is lighter than Black.
Plate Round 1 x 1 with Open StudBlack ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 Rounded with 2 Open StudsDark Bluish Gray ×13Black ×7Dark Bluish Gray is lighter than Black.
Tile 1 x 2 with GrooveDark Bluish Gray ×10Black ×1Dark Bluish Gray is lighter than Black.
Tile 1 x 3Black ×3Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Tile Round 1 x 1Black ×1Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom GrooveDark Bluish Gray ×2Black ×1Dark Bluish Gray is lighter than Black.
Technic Axle Connector Smooth [with x Hole + Orientation]BlackPart 59443Element 6084612 or 4512363×1
Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top]RedPart 32530Element 4207715 or 3253021×1
Technic Axle Connector with Axle Hole [Reinforced]WhitePart 42135Element 6375684×1
Animal / Creature Body Parts
2 pieces
Animal Body Part, Horn (Cattle) / Tentacle / Vine / Branch / Tongue - LongRedPart 13564Element 6269079 or 61601611 spare in the box×1
Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End SectionReddish BrownPart 40379Element 6372430×1
Minifig Headwear Accessories
2 pieces
Headwear Accessory Plume / Feather Small with PinWhitePart 87693Element 6406415 or 61393432 spares in the box×2
Stickers
2 pieces
Sticker Sheet 1 for Set 76437-1[No Color/Any Color]Part 10109663Element 6503072×1
Sticker Sheet 2 for Set 76437-1[No Color/Any Color]Part 10109664Element 6503076×1
Containers
1 piece
Bucket 1 x 1 x 1 HandleBlackPart 95344Element 6245281 or 61217251 spare in the box×1
Energy Effects
1 piece
Wave / Flame Small with PinTrans-OrangePart 37775Element 6514274 or 63577471 spare in the box×1
Flags, Banners and Signs
1 piece
Road Sign Clip-on 2.2 x 2.667 Triangular with Open O ClipReddish BrownPart 65676Element 6317561×1
Minifig Heads
1 piece
Minifig Head [Plain] [Vented Stud - 2 Holes]WhitePart 28621Element 6550193 or 6454713×1
Minifig Headwear
1 piece
Hair Short, Tousled with Side PartDark OrangePart 62810Element 6119966 or 4529755×1
Minifig Shields, Weapons, & Tools
1 piece
Tool Screwdriver and Spanner / WrenchBlackPart 4006Element 6034000 or 4569095×1
Minifigs
1 piece
Minifig Trophy StatuetteDark RedPart 90398Element 6301335 or 61078941 spare in the box×1
Pneumatics
1 piece
Pneumatic T-Piece (T Bar) [New Style]Pearl GoldPart 4697bElement 6452472 or 61679301 spare in the box×1
Supports, Girders and Cranes
1 piece
Support Round 1 x 1 x 6 Solid PillarReddish BrownPart 43888Element 4520612×1
Technic Bushes
1 piece
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×1
Technic Panels
1 piece
Technic Panel Fairing 2 x 1 x 1WhitePart 89679Element 6434569×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Transportation - Land
1 piece
Seat / Chair 2 x 2Dark RedPart 4079Element 6410687×1
Minifigures
10 figures
Molly, Sand Green RobeMinifigure, checked as a whole figure×1
Harry Potter, Red/Dark Red Sweater, Short Black LegsMinifigure, checked as a whole figure×1
Bill WeasleyMinifigure, checked as a whole figure×1
Percy Weasley, Bright Light Blue PajamasMinifigure, checked as a whole figure×1
Charlie WeasleyMinifigure, checked as a whole figure×1
Ginny Weasley, Bright Light Blue RobeMinifigure, checked as a whole figure×1
Ron Weasley, Dark Red Shirt, Dark Blue Short LegsMinifigure, checked as a whole figure×1
Arthur Weasley, Sand Green JacketMinifigure, checked as a whole figure×1
Fred Weasley, Dark Green SweaterMinifigure, checked as a whole figure×1
George Weasley, Dark Green SweaterMinifigure, 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.