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.
1,050 pieces in 224 part and color combinations, plus 1 minifigure.
The official piece count includes the 5 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.
Plate 1 x 2Orange ×23Trans-Orange ×2Trans-Orange is see-through: hold the piece up to a light.
Brick Sloped 30° 1 x 2 x 2/3Black ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Brick Sloped 33° 3 x 2Black ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 Double / Inverted with Bottom Stud HolderBlack ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 Triple with Inside Stud HolderBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBlack ×4Dark Bluish Gray ×14Black is darker than Dark Bluish Gray.
2 more look-alike pairs
Plate 2 x 4Black ×6Dark Bluish Gray ×15Black is darker than Dark Bluish Gray.
Technic Rotation Joint Ball Loop with Two Perpendicular Pins with FrictionBlack ×2Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Technic Beam 1 x 2 ThinBlackPart 41677Element 6338428 or 4167726×4
Technic Beam 1 x 2 ThickDark Bluish GrayPart 43857Element 6325983 or 6179631×1
Tiles Round and Curved
4 pieces
Tile Round 2 x 2 with Bottom Stud HolderPearl GoldPart 14769Element 6066345×4
Transportation - Land
4 pieces
Wheel Arch, Curved Wedge 4 x 3 with 2 x 2 Opening and 4 StudsPearl GoldPart 47755Element 6320055 or 6116007×4
Bars, Ladders and Fences
3 pieces
Bar 2L with Stop in CenterDark Bluish GrayPart 78258Element 63507241 spare in the box×2
Bar 2L with TowballDark Bluish GrayPart 22484Element 6364352 or 6360117×1
Panels
3 pieces
Panel 1 x 2 x 1 [Rounded Corners]BlackPart 4865bElement 6146220×2
Panel 1 x 2 x 1 with Rounded Corners and Central DividerTanPart 93095Element 6670646 or 6153157×1
Stickers
1 piece
Sticker Sheet for Set 71821-1[No Color/Any Color]Part 10108436Element 6484990×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
1 figure
Cole, White Robes, Orange Wraps, Shoulder ArmorMinifigure, 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.