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.
1,405 pieces in 325 part and color combinations, plus 8 minifigures.
The official piece count includes the 51 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 2Red ×4Trans-Red ×13Trans-Red is see-through: hold the piece up to a light.
Plate Round 1 x 1 with Solid StudDark Bluish Gray ×6Flat Silver ×70Dark Bluish Gray is darker than Flat Silver.
Brick Curved 1 x 2 x 1 1/3 with Curved TopBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Curved 2 x 1 No Studs [1/2 Bow]Black ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / GrateBlack ×4Dark Bluish Gray ×18Black is darker than Dark Bluish Gray.
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Black ×12Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
18 more look-alike pairs
Brick Sloped 30° 1 x 2 x 2/3Black ×18Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 2Black ×54Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Plate 1 x 3Black ×20Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×6Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 1 x 8Black ×11Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 2Black ×24Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 2 CornerBlack ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×22Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×18Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 Side Handle [Free Ends]Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 [Side Handle Closed Ends]Black ×8Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×9Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with Clip Horizontal on EndBlack ×4Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate Special 1 x 2 with Pin Hole on TopBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile Special 1 x 1 with Clip with Rounded EdgesBlack ×3Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Wing, Tail 4 x 1 x 3Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Animal / Creature Accessory, Horse Hitching, 1 x 2 Plate and 2 x 2 Plate [Studded]RedPart 2397Element 6181583 or 4269876×1
Bracket 5 x 2 x 1 1/3 with Holes, Pin BottomRedPart 11215Element 6029952×7
Plate 1 x 2RedPart 3023Element 302321Also in Trans-Red×4
Plate 1 x 3RedPart 3623Element 362321×2
Plate 1 x 4RedPart 3710Element 371021×8
Plate 1 x 6RedPart 3666Element 366621×2
Plate 2 x 16RedPart 4282Element 428221×1
Plate 2 x 2RedPart 3022Element 4613974 or 302221×2
Plate 2 x 3RedPart 3021Element 302121×2
Plate 2 x 4RedPart 3020Element 302021×9
Plate Special 1 x 2, Top Clip [Split]RedPart 92280Element 4597713×6
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud]RedPart 99206Element 6061711×4
Technic Axle 4RedPart 3705Element 6129995 or 4265797×4
Wedge Plate 12 x 3 LeftRedPart 47397Element 6524700 or 6054536×1
Wedge Plate 12 x 3 RightRedPart 47398Element 6524699 or 6054538×1
Wedge Plate 3 x 2 LeftRedPart 43723Element 4372321 or 4180533×4
Wedge Plate 3 x 2 RightRedPart 43722Element 4372221 or 4180504×4
Wedge Plate 6 x 3 LeftRedPart 54384Element 6170834×2
Wedge Plate 6 x 3 RightRedPart 54383Element 6170832×2
Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner RingRedPart 13971Element 6048859×4
Wheel 30.4 x 20 without Pinholes, with Reinforced RimRedPart 56145Element 6414466 or 6143426×6
Trans-Purple
29 pieces
Dish 2 x 2 Inverted [Radar]Trans-PurplePart 4740Element 6580379 or 6245309×11
Plate Round 1 x 1 with Solid StudTrans-PurplePart 6141Element 6514054 or 62402101 spare in the box×8
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]Trans-PurplePart 2654Element 6254636 or 6177942×6
Tile Round 1 x 1Trans-PurplePart 98138Element 6514201 or 63254321 spare in the box×4
Trans-Yellow
25 pieces
Plate Round 1 x 1 with Solid StudTrans-YellowPart 6141Element 6514056 or 62402162 spares in the box×20
Plate Special 1 x 1 with ToothTrans-YellowPart 49668Element 6219769 or 4612573×2
Windscreen 8 x 4 x 2 with Handle and 2 Studs [Solid Studs] [Plain]Trans-YellowPart 21849Element 6170827×3
Blue
22 pieces
Plate 4 x 4BluePart 3031Element 4243815 or 303123×1
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×8
Technic Brick 1 x 6 [5 Pin Holes]BluePart 3894Element 389423×3
Technic Pin 1/2 without Friction RidgesBluePart 4274Element 41430051 spare in the box×2
Technic Pin Long with Friction Ridges Lengthwise, 2 Center SlotsBluePart 6558Element 4514553×8
Reddish Brown
20 pieces
Brick Curved 2 x 1 No Studs [1/2 Bow]Reddish BrownPart 11477Element 6069984×4
Brick Sloped 30° 1 x 2 x 2/3Reddish BrownPart 85984Element 6035291×4
Brick Special 1 x 1 with HeadlightReddish BrownPart 4070Element 4225469×2
Equipment Brush / BroomReddish BrownPart 4332Element 6268855 or 6122108×1
Technic Axle 3 with StopReddish BrownPart 24316Element 6135494×2
Technic Axle 5 with StopReddish BrownPart 15462Element 6159763×5
Tile 1 x 2 with GrooveReddish BrownPart 3069bElement 4211151×1
Tile 2 x 4 with GrooveReddish BrownPart 87079Element 4579690×1
Trans-Clear
17 pieces
Light Brick 2 x 3 x 1 1/3 with Dark Bluish Gray Base [Yellow LED]Trans-ClearPart 62930Element 6555880 or 6429472×1
Tile Round 1 x 1Trans-ClearPart 98138Element 6514191 or 62747383 spares in the box×16
Trans-Red
15 pieces
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-RedPart 54200Element 6245252 or 4244363×2
Plate 1 x 2Trans-RedPart 3023Element 6514003 or 6240212Also in Red×13
White
12 pieces
Plate 1 x 2WhitePart 3023Element 6552100 or 6548261×3
Plate 1 x 4WhitePart 3710Element 6552108 or 6548266×4
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud]WhitePart 99206Element 6046979×4
Plate Special Round 4 x 4, 2 Studs with Polka Dot PrintWhitePart 32627pr0001Element 6187472×1
Yellow
8 pieces
Plate 2 x 4YellowPart 3020Element 302024×1
Technic Axle 7YellowPart 44294Element 6130009×2
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×4
Weapon BatarangYellowPart 98721Element 6173918×1
Tan
5 pieces
Plate 2 x 3TanPart 3021Element 4118790 or 302105×4
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]TanPart 2654Element 4278422 or 4140561×1
Orange
4 pieces
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Plate Round 1 x 1 with Solid StudOrangePart 6141Element 41571031 spare in the box×2
Tile Round 1 x 1OrangePart 98138Element 6284582 or 60094591 spare in the box×1
Trans-Orange
3 pieces
Projectile, Spring Shooter Ammunition 8L BarTrans-OrangePart 15303Element 6296380 or 6072635×3
Bright Pink
2 pieces
Plate 1 x 2Bright PinkPart 3023Element 4654128 or 4245303×2
Green
2 pieces
Plate 1 x 3GreenPart 3623Element 4107758 or 362328×2
Dark Tan
1 piece
Plate Special 2 x 2 with Pin on BottomDark TanPart 2476aElement 6606096 or 6276849×1
Lime
1 piece
Tile Round 1 x 1LimePart 98138Element 6284583 or 60578781 spare in the box×1
Trans-Brown
1 piece
Dome Hemisphere 4 x 4 with Batman PrintTrans-BrownPart 86500pr0004Element 6253128 or 6188099×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 70917-1[No Color/Any Color]Part 34378Element 6195041×1
Minifigures
8 figures
Wicked WitchMinifigure, checked as a whole figure×1
Batgirl, Dark Purple Suit, Yellow Cape, Dark Purple Cowl (3626cpr2096)Minifigure, checked as a whole figure×1
Robin with Green Eyes (LEGO Batman Movie)Minifigure, checked as a whole figure×1
Batman, Black Suit, Black Cape and Cowl, Utility Belt (3626cpr2287 Head)Minifigure, checked as a whole figure×1
Alfred Pennyworth, Chauffeur BatsuitMinifigure, checked as a whole figure×1
Polka-Dot ManMinifigure, checked as a whole figure×1
Flying Monkey with Open MouthMinifigure, checked as a whole figure×1
Flying Monkey with Closed MouthMinifigure, 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.