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 2Black ×14Trans-Brown ×2Trans-Brown is see-through: hold the piece up to a light.
Brick 1 x 8Black ×1Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]Black ×2Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Brick Special 1 x 2 with Pin - Bottom Stud HolderBlack ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 1 x 10Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×4Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
1 more look-alike pair
Plate Round 1 x 1 with Solid StudBlack ×3Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Technic Steering Gear with 3 Towball Joints, CompactDark Bluish GrayPart 15460Element 6359227 or 6055629×2
Yellow
31 pieces
Brick Round 2 x 2, Pin HolesYellowPart 17485Element 6378132 or 6102524×1
Plate 1 x 10YellowPart 4477Element 6079138 or 6078095×3
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)YellowPart 4032aElement 403224×6
Plate Special 1 x 2 with Handle on End [Closed Ends]YellowPart 60478Element 4515367×2
Technic Axle 3YellowPart 4519Element 6130007×3
Technic Axle 5YellowPart 32073Element 6130008×2
Technic Axle and Pin Connector PerpendicularYellowPart 6536Element 6261367 or 4173666×2
Technic Beam 1 x 9 ThickYellowPart 40490Element 6115616 or 4187136×1
Technic Brick 1 x 8 [7 Pin Holes]YellowPart 3702Element 370224×1
Technic Steering Arm 5 x 1 with Towball Socket (Type2)YellowPart 31794Element 6345163×2
Tile 1 x 6 with GrooveYellowPart 6636Element 6388488 or 663624×2
Tile Round 1 x 1YellowPart 98138Element 6284577 or 60707141 spare in the box×6
Trans-Clear
18 pieces
Brick 1 x 2 x 5 without Side SupportsTrans-ClearPart 46212Element 6514085 or 6251285×4
Cylinder Half 2 x 4 x 5 with 1 x 2 cutoutTrans-ClearPart 85941Element 6514134 or 6246876×2
Dish 3 x 3 Inverted [Radar]Trans-ClearPart 43898Element 6507917 or 6244730×2
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]Trans-ClearPart 87552Element 6514185 or 6253231×4
Panel 1 x 2 x 2 with White Corner Left PrintTrans-ClearPart 87552pr0011Element 6531938 or 6343002×1
Panel 1 x 2 x 2 with White Corner Right PrintTrans-ClearPart 87552pr0012Element 6531745 or 6343853×1
Tile 1 x 2 with Red Area PrintTrans-ClearPart 3069bpr0326Element 6523624 or 6343001×2
Windscreen 1 x 10 x 4Trans-ClearPart 65735Element 6514366 or 6288588×1
Windscreen 2 x 12 x 4Trans-ClearPart 6267Element 6514067 or 6338604×1
Tan
17 pieces
Brick 2 x 2TanPart 3003Element 4114306 or 300305×2
Brick Special 1 x 2 with 2 Studs on 1 SideTanPart 11211Element 6024495×3
Plate 1 x 4TanPart 3710Element 4113233 or 371005×4
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×3
Technic Brick 1 x 1 with Pin HoleTanPart 6541Element 4179771 or 654105×5
Medium Nougat
16 pieces
Brick Special 1 x 4 Palisade [aka Log]Medium NougatPart 30137Element 4651232×16
Orange
14 pieces
Brick Arch 1 x 3 x 2 Curved TopOrangePart 6005Element 6340751 or 4656497×2
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
Plate 1 x 1OrangePart 3024Element 4524929 or 42034541 spare in the box×2
Plate 2 x 2OrangePart 3022Element 4613982 or 4159007×1
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]OrangePart 65304Element 6347790×8
Flat Silver
6 pieces
Technic Pin Connector Round [Slotted]Flat SilverPart 62462Element 6245499 or 6054858×2
Wheel 30 x 20 5-SpokeFlat SilverPart 42716Element 6250349×4
Medium Azure
2 pieces
Plate Special 1 x 2 [Side Handle Closed Ends]Medium AzurePart 48336Element 6236582×1
Tile 1 x 2 with GrooveMedium AzurePart 3069bElement 6603315 or 4649741×1
Reddish Brown
2 pieces
Technic Axle 3 with StopReddish BrownPart 24316Element 6135494×2
Trans-Brown
2 pieces
Plate 1 x 2Trans-BrownPart 3023Element 6514006 or 6240219Also in Black×2
Trans-Orange
2 pieces
Brick Curved 1 x 4 x 2 2/3Trans-OrangePart 65734Element 6510202 or 6340734×2
Bright Green
1 piece
Technic Beam 1 x 2 ThickBright GreenPart 43857Element 6316318×1
Bright Light Orange
1 piece
Tile 2 x 4 with 'P51AK3 New York' PrintBright Light OrangePart 87079pr0243Element 6349278×1
Olive Green
1 piece
Technic Beam 1 x 5 ThickOlive GreenPart 32316Element 6278029×1
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.