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.
3,139 pieces in 599 part and color combinations, plus 7 minifigures.
The official piece count includes the 32 parts inside the set's minifigures, which this inventory lists separately. 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.
Tile Round 1 x 1Red ×2Trans-Red ×12Trans-Red is see-through: hold the piece up to a light.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)White ×1Trans-Clear ×1Trans-Clear is see-through: hold the piece up to a light.
Plate 1 x 1White ×1Trans-Clear ×1Trans-Clear is see-through: hold the piece up to a light.
Tile 1 x 2 with GrooveMedium Azure ×7Opal Trans-Light Blue ×3Opal Trans-Light Blue is see-through: hold the piece up to a light.
Plate Special 2 x 2 with Groove and Center Stud (Jumper)Dark Turquoise ×4Medium Azure ×5Dark Turquoise is darker than Medium Azure.
Tile 1 x 2 with GrooveDark Turquoise ×2Medium Azure ×7Dark Turquoise is darker than Medium Azure.
9 more look-alike pairs
Tile 45° Cut 2 x 2 (Triangle)Dark Turquoise ×4Medium Azure ×2Dark Turquoise is darker than Medium Azure.
Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]Tan ×1Dark Tan ×4Tan is lighter than Dark Tan.
Bracket 1 x 2 - 1 x 2 InvertedBlack ×2Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×7Dark Bluish Gray ×14Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Technic Pin Connector Hub with 2 Perpendicular AxlesBlack ×12Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Technic Plate 2 x 4 [3 Holes]Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 2 with GrooveBlack ×2Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Tile Special Round 1 x 1 with Hollow BarBlack ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Technic Gear 24 Tooth [New Style with Single Axle Hole]Dark Bluish GrayPart 3648bElement 6133119 or 4514558×1
Technic Worm Gear Type 2Light Bluish GrayPart 32905Element 6185471×1
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×4
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]TanPart 18575Element 6346517 or 6084724×2
Hinges, Arms and Turntables
8 pieces
Turntable 2 x 2 x 1BlackPart 40145Element 6252373×4
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]Light Bluish GrayPart 1927Element 6416524×2
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]RedPart 1927Element 6416443×2
Panels
8 pieces
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]BlackPart 87552Element 4593678×1
Panel 1 x 4 x 3 [Side Supports / Hollow Studs]Dark Bluish GrayPart 60581Element 6008715×1
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]Reddish BrownPart 87552Element 6064188 or 4618541×2
Panel 1 x 2 x 1 [Rounded Corners]Trans-ClearPart 4865bElement 6514121 or 6246888×2
Panel 1 x 4 x 3 [Side Supports / Hollow Studs]Trans-ClearPart 60581Element 6514156 or 6344088×1
Panel 1 x 6 x 5 with Green/Yellow Tracking Monitor, Presents, Santa PrintTrans-Light BluePart 59349pr0039Element 6542150×1
Wheels and Tyres
4 pieces
Tyre 14 x 4 Smooth Small Single [New Style]BlackPart 59895Element 4516843 or 45077001 spare in the box×4
Containers
3 pieces
Box 2 x 2 x 2 [Hollow Studs]RedPart 4345bElement 4261628 or 434571×1
Barrel 2 x 2 x 2Reddish BrownPart 2489Element 6605306 or 6278989×1
Box 2 x 2 x 2 Door with SlotTrans-ClearPart 4346Element 6499105 or 6247357×1
Windows and Doors
3 pieces
Door Frame 1 x 4 x 6 Type 2Dark BrownPart 60596Element 6337282 or 6259764×1
Door 1 x 4 x 6 with 4 Panes and Stud HandleDark RedPart 60623Element 6062650×1
Window Frame 1 x 3 x 3WhitePart 51239Element 6550178 or 6537850×1
Flags, Banners and Signs
2 pieces
Flag 2 x 2 Square, Flared Clip Edge [Thick Clips]BlackPart 80326Element 6363034×2
Technic Special
2 pieces
Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin HolesBlackPart 6585Element 6169982 or 4500902×1
Technic Gearbox 2 x 4 x 3 1/3Trans-ClearPart 6588Element 6507887 or 6254290×1
Transportation - Land
2 pieces
Steering Wheel Small, 2 x 2 [Reinforced]BlackPart 16091Element 6057397×1
Seat / Chair 2 x 2Dark RedPart 4079Element 6410687×1
Animal / Creature Body Parts
1 piece
Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with Pin HolesBlackPart 5717Element 6548955 or 6498190×1
Animals / Creatures
1 piece
Animal, Reindeer with Dark Brown Antlers, White FrontMedium NougatPart 51591pr0001Element 6638729 or 6310336×1
Energy Effects
1 piece
Flame / Headwear Accessory Plume / Feather, Triple PointWhitePart 64647Element 6289366 or 60976941 spare in the box×1
Stickers
1 piece
Sticker Sheet for Set 41843-1[No Color/Any Color]Part 10112961Element 6542154×1
Supports, Girders and Cranes
1 piece
Support Round 2 x 2 x 2 Stand with Reinforced UndersideBlackPart 19798Element 6106280×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
7 figures
Elf - Green Torso, Red Legs, Knight HelmetMinifigure, checked as a whole figure×1
Santa, 973c22h27pr0002 TorsoMinifigure, checked as a whole figure×1
Elf - Bright Green Torso, Red Legs, Aviator CapMinifigure, checked as a whole figure×1
Elf - Red Torso, Green Legs, Space HelmetMinifigure, checked as a whole figure×1
Mrs. Claus, Red DressMinifigure, checked as a whole figure×1
Elf - Bright Green Torso, Red Legs, Bright Green Hat, BackpackMinifigure, checked as a whole figure×1
Elf - Red, Green Legs, Bright Green Hat, Hearts for EyesMinifigure, 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.