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.
517 pieces in 156 part and color combinations, plus 4 minifigures.
The official piece count includes the 20 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.
Launcher, Technic Competition Cannon, Round Bottom with Same Color EndsBlackPart 32074c01Element 4118816 or 4118815×1
Panel 1 x 2 x 1 [Square Corners]BlackPart 4865aElement 486526×1
Plate 2 x 8BlackPart 3034Element 303426×1
Plate Special 1 x 2 [Side Handle Closed Ends]BlackPart 48336Element 4225201×5
Plate Special 4 x 4, Studs on One Edge Plain]BlackPart 6179Element 617926×1
Technic Axle 2 NotchedBlackPart 32062Element 4109810 or 3206226×4
Technic Axle 4BlackPart 3705Element 370526×1
Technic Axle Connector Ridged [with x Hole x Orientation]BlackPart 6538bElement 4113805 or 4107083×2
Technic Beam 1 x 9 ThickBlackPart 40490Element 4645732 or 4542788×2
Technic Pin with Friction Ridges Lengthwise and Center SlotsBlackPart 2780Element 4121715 or 2780261 spare in the box×7
Technic Tooth 1 x 3 with Axle Hole [Rounded Underside]BlackPart 41669Element 4540065 or 4177441×2
Tan
31 pieces
Brick Special 1 x 2 with HandleTanPart 30236Element 4288513 or 4201066×2
Cone 1 x 1 [No Top Groove]TanPart 4589Element 4520958 or 4129997×4
Hinge Train Gate 2 x 4 Locking Dual 2 Fingers with Rear Reinforcements, 9 TeethTanPart 44569Element 4286666×4
Plate 1 x 10TanPart 4477Element 4143409 or 447705×2
Plate 2 x 6TanPart 3795Element 4113993 or 379505×2
Plate Round Corner 6 x 6TanPart 6003Element 6056484 or 4288370×2
Support 1 x 1 x 5 1/3 Spiral Staircase AxleTanPart 40244Element 4288363 or 4153421×2
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×1
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom PinTanPart 32064aElement 6219794 or 4233494×10
Wedge Plate 4 x 2 LeftTanPart 41770Element 6177891 or 4545384×1
Wedge Plate 4 x 2 RightTanPart 41769Element 6177890 or 4616490×1
White
27 pieces
Bracket 1 x 2 - 2 x 2WhitePart 44728Element 6619296 or 6117940×2
Brick 2 x 3WhitePart 3002Element 6550133 or 300251×1
Brick Round 1 x 1 Open StudWhitePart 3062bElement 6619283 or 306201×4
Brick Sloped 45° 2 x 2 Double ConvexWhitePart 3045Element 4233370 or 304501×2
Brick Sloped 65° 2 x 2 x 2 with Bottom TubeWhitePart 3678bElement 6552126 or 4234525×1
Brick Special 1 x 4 with 4 Studs on One SideWhitePart 30414Element 6550167 or 4143254×4
Hinge Brick 1 x 2 Top Plate ThinWhitePart 3938Element 393801×2
Minifig Head [Plain] [Blocked Open Stud]WhitePart 3626b×2
Plate Round 1 x 1 with Solid StudWhitePart 6141Element 6601919 or 6141011 spare in the box×2
Plate Special 1 x 2 with Door RailWhitePart 32028Element 6550168 or 4249563×1
Technic Beam 1 x 3 ThinWhitePart 6632Element 6360038 or 4107826×2
Technic Brick 1 x 10 [9 Pin Holes]WhitePart 2730Element 273001×2
Technic Brick 1 x 4 [3 Pin Holes]WhitePart 3701Element 6601913 or 370101×2
Reddish Brown
26 pieces
Brick Curved 8 x 2 x 2Reddish BrownPart 41766Element 4582673 or 4286682×12
Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom PinReddish BrownPart 3048cElement 4211251×1
Brick Sloped 45° 2 x 2Reddish BrownPart 3039Element 4211202×4
Brick Wedged, Curved 8 x 3 x 2 Open LeftReddish BrownPart 41750Element 6486925 or 6003806×2
Brick Wedged, Curved 8 x 3 x 2 Open RightReddish BrownPart 41749Element 6486924 or 6003809×2
Plate 2 x 4Reddish BrownPart 3020Element 4211186×1
Wedge Plate 3 x 3 Cut CornerReddish BrownPart 2450Element 6078090 or 6075207×4
Sand Green
20 pieces
Brick Curved Inverted 6 x 1Sand GreenPart 42023Element 4163633×2
Brick Sloped 45° 2 x 8Sand GreenPart 4445Element 4272851×2
Brick Wedged, Curved 8 x 3 x 2 Open LeftSand GreenPart 41750Element 6258376 or 4288381×2
Brick Wedged, Curved 8 x 3 x 2 Open RightSand GreenPart 41749Element 6258344 or 4288383×2
Hinge Brick 1 x 2 BaseSand GreenPart 3937Element 6223234 or 4286649×4
Panel 1 x 4 x 1 with Rounded Corners [Thick Wall]Sand GreenPart 43337Element 4286644×2
Tile 1 x 6 with GrooveSand GreenPart 6636Element 4163631×6
Blue
9 pieces
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×9
Trans-Neon Orange
9 pieces
Dish 2 x 2 Inverted [Radar]Trans-Neon OrangePart 4740Element 6245295 or 3006347×7
Plate Round 1 x 1 with Solid StudTrans-Neon OrangePart 6141Element 6240218 or 30057471 spare in the box×2
Trans-Orange
4 pieces
Cone 1 x 1 [No Top Groove]Trans-OrangePart 4589Element 4221195×4
Yellow
4 pieces
Tile Special 1 x 2 Grille with Bottom GrooveYellowPart 2412bElement 241224×4
Trans-Brown
1 piece
Windscreen 12 x 6 x 6 CurvedTrans-BrownPart 41881Element 4288366 or 4163184×1
Minifigures
4 figures
Boba Fett, Helmet and Jetpack with Dark Brown Highlights, Light Bluish Gray ArmorMinifigure, checked as a whole figure×1
Bespin Guard, Reddish Brown SkinMinifigure, checked as a whole figure×1
Dengar, Light Nougat HeadMinifigure, checked as a whole figure×1
IG-88, Round Plate HeadMinifigure, 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.