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.
997 pieces in 307 part and color combinations, plus 4 minifigures.
LEGO counts 1,016 pieces. This inventory comes from a separate parts catalog and lists 1,017, including the 20 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 1 x 2Reddish Brown ×3Dark Brown ×4Reddish Brown is redder and lighter than Dark Brown.
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, SmallTan ×2Dark Tan ×4Tan is lighter than Dark Tan.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Tan ×3Dark Tan ×25Tan is lighter than Dark Tan.
Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no studBlack ×4Dark Blue ×2Black is yellower and darker than Dark Blue.
Technic Axle and Pin Connector Angled #6 - 90°Black ×1Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]Pearl GoldPart 21459Element 61165962 spares in the box×3
Weapon Sword / Katana / Wakizashi ShortPearl GoldPart 5644Element 64901961 spare in the box×1
Weapon Sword, Big Blade with BarPearl GoldPart 98137Element 6270131 or 4646843×2
Technic Beams
6 pieces
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleDark TanPart 60483Element 6344864 or 6170313×4
Technic Beam 1 x 5 Thin with Axle Holes on EndsLight Bluish GrayPart 11478Element 6328063 or 6029206×2
Technic Special
5 pieces
Technic Tooth 1 x 3 with Axle Hole [Hollow Underside]BlackPart 48267Element 6288220×1
Rotation Joint Socket with 2 PinsDark Bluish GrayPart 80563Element 6369944×1
Technic Brick 1 x 2 with Hole and Dual Beam ExtensionsDark Bluish GrayPart 85943Element 6324639 or 4547958×1
Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in BallDark TanPart 57909bElement 6536426×1
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm HolesReddish BrownPart 67696Element 6572892×1
Hinges, Arms and Turntables
4 pieces
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]BlackPart 1927Element 6672302 or 6416444×2
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]Light Bluish GrayPart 1927Element 6416524×2
Large Buildable Figures
4 pieces
Mech Chest Plate / Armor with HandleDark BluePart 8091Element 6595692×1
Fin Jagged with Axle HolePearl GoldPart 76919Element 6342592×1
Large Figure Weapon Sword with Axle ConnectorPearl GoldPart 2144Element 6508001 or 6417341×2
Plants & Trees
4 pieces
Plant, Plate 1 x 1 Round with 3 LeavesGreenPart 32607Element 6229130×2
Plant, Plate 1 x 1 Round with 3 LeavesOlive GreenPart 32607Element 6398008×2
Technic Bushes
2 pieces
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×2
Gear Parts
1 piece
Poster for Set 71871-1[No Color/Any Color]Part 6650823Element 6650823×1
Minifig Accessories
1 piece
Equipment Broom EndTanPart 90826Element 6514488 or 6400380×1
Stickers
1 piece
Sticker Sheet for Set 71871-1[No Color/Any Color]Part 10117181Element 6601157×1
String, Bands and Reels
1 piece
Chain 2L with BarsPearl GoldPart 6981Element 6512378×1
Technic Beams Special
1 piece
Technic Rotation Joint Disk with Pin and 3L Beam ThickLight Bluish GrayPart 44225Element 6671155 or 6332151×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Minifigures
4 figures
MiraMinifigure, checked as a whole figure×1
Oni WarriorMinifigure, checked as a whole figure×1
JinMinifigure, checked as a whole figure×1
Master IvoMinifigure, 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.