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.
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 2White ×18Trans-Clear ×4Trans-Clear is see-through: hold the piece up to a light.
Plate 1 x 2Reddish Brown ×32Dark Brown ×2Reddish Brown is redder and lighter than Dark Brown.
Plate Round 1 x 1 with Solid StudReddish Brown ×19Dark Brown ×32Reddish Brown is redder and lighter than Dark Brown.
Tile 1 x 2 with GrooveReddish Brown ×4Dark Brown ×1Reddish Brown is redder and lighter than Dark Brown.
Brick 2 x 2 CornerTan ×8Dark Tan ×4Tan is lighter than Dark Tan.
Plate 2 x 2Tan ×2Dark Tan ×6Tan is lighter than Dark Tan.
13 more look-alike pairs
Bracket 1 x 1 - 1 x 1 InvertedBlack ×6Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Hinge Brick 1 x 2 BaseBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 1 x 2/3 with Open StudBlack ×5Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 3Black ×14Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×15Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
Plate 2 x 2 CornerBlack ×8Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×10Dark Bluish Gray ×12Black is darker than Dark Bluish Gray.
Plate 2 x 6Black ×2Dark Bluish Gray ×11Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Open StudBlack ×6Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Black ×9Dark Bluish Gray ×1Black 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 ×3Black is darker than Dark Bluish Gray.
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Tile Special 1 x 1 with Clip with Rounded EdgesBlack ×2Dark Bluish Gray ×7Black is darker than Dark Bluish Gray.
Equipment Flotation Ring [Life Preserver]WhitePart 30340Element 4297083×2
Windows and Doors
12 pieces
Window Frame 1 x 3 x 3Dark BrownPart 51239Element 6331950×1
Window Frame 1 x 3 x 3Light Bluish GrayPart 51239Element 6381253×1
Window 1 x 2 x 2 Flat FrontReddish BrownPart 60592Element 6382102 or 4595814×10
Technic Bushes
11 pieces
Technic BushBlackPart 3713Element 6332148 or 62105061 spare in the box×1
Technic BushLight Bluish GrayPart 3713Element 6275844 or 62718171 spare in the box×2
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedLight Bluish GrayPart 32123bElement 6271165 or 42115731 spare in the box×1
Technic BushRedPart 3713Element 6271820 or 42271551 spare in the box×1
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedWhitePart 32123bElement 6634562 or 63602631 spare in the box×2
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×4
Technic Gears
8 pieces
Technic Gear Rack 1 x 4Reddish BrownPart 3743Element 6503736×6
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×2
String, Bands and Reels
6 pieces
Chain 16L [21 Links]Dark Bluish GrayPart 60169Element 6258887 or 4516456×3
String Cord Medium Thickness (1mm) 150cmDark Bluish GrayPart 37597c150Element 6431485 or 6226157×2
Technic Reel 3 x 2Dark Bluish GrayPart 32012Element 32012199 or 4239891×1
Technic Beams
6 pieces
Technic Beam 1 x 3 ThinLight Bluish GrayPart 6632Element 6360043 or 4211566×2
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleWhitePart 60483Element 6265135 or 6177268×2
Technic Beam 1 x 3 ThinWhitePart 6632Element 6360038 or 4107826×1
Technic Beam 1 x 5 Thin with Axle Holes on EndsWhitePart 11478Element 6360069 or 6259826×1
Pneumatics
3 pieces
Pneumatic T-Piece (T Bar) [New Style]BlackPart 4697bElement 61042091 spare in the box×2
Pneumatic T-Piece (T Bar) [New Style]WhitePart 4697bElement 6615553 or 62898661 spare in the box×1
Technic Special
3 pieces
Technic Brick 1 x 2 with Hole and Dual Beam ExtensionsBlackPart 85943Element 6517676×3
Wheels and Tyres
3 pieces
Technic Wedge Belt Wheel [aka Pulley]WhitePart 4185Element 6564907 or 6330136×3
Containers
1 piece
Barrel 2 x 2 x 2WhitePart 2489Element 6511452 or 248901×1
Energy Effects
1 piece
Wave / Flame Small with PinTrans-OrangePart 37775Element 6514274 or 63577471 spare in the box×1
Flags, Banners and Signs
1 piece
Flag 7 x 5 Wave with Union Jack on Red Field PrintWhitePart 110126pr0001Element 6515559×1
Tools
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
Transportation - Land
1 piece
Steering Wheel Small, 2 x 2 [Reinforced]Light Bluish GrayPart 16091Element 6092956 or 6061697×1
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.