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.
Brick Special 1 x 1 with Studs on 2 Adjacent SidesBlack ×4Dark Bluish Gray ×22Black is darker than Dark Bluish Gray.
Plate 1 x 3Black ×4Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×12Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×6Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 8Black ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 3 x 3Black ×2Dark Bluish Gray ×3Black is darker than Dark Bluish Gray.
1 more look-alike pair
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)Black ×5Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Wedge Plate 2 x 2 LeftMedium NougatPart 24299Element 6433733×5
Wedge Plate 2 x 2 RightMedium NougatPart 24307Element 6433734×5
Wedge Plate 2 x 4 27° LeftReddish BrownPart 65429Element 6503728×1
Wedge Plate 2 x 4 27° RightReddish BrownPart 65426Element 6503729×1
Hinges, Arms and Turntables
9 pieces
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]Light Bluish GrayPart 1927Element 6416524×4
Turntable 4 x 4 Square Base, LockingLight Bluish GrayPart 61485Element 6045718 or 4523670×1
Hinge Plate 1 x 2 Locking with 1 Finger On End, without GrooveRedPart 44301bElement 6266222×2
Hinge Plate 1 x 2 Locking with 2 Fingers On End, without Groove, 7 TeethYellowPart 54657Element 6267046×2
Bars, Ladders and Fences
4 pieces
Bar 2L with TowballDark Bluish GrayPart 22484Element 6364352 or 6360117×1
Bar, Angled with 1 x 1 Round Plate / Stud on EndMedium NougatPart 65578Element 6510192 or 64003151 spare in the box×1
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]Reddish BrownPart 3484Element 6439053×2
Panels
4 pieces
Panel 1 x 2 x 1 [Rounded Corners]Medium NougatPart 4865bElement 6226646×1
Panel 1 x 1 x 1 CornerRedPart 6231Element 4190219 or 623121×1
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]WhitePart 87552Element 6615549 or 4585458×2
Technic Axles
4 pieces
Technic Axle 4BlackPart 3705Element 370526×1
Technic Axle 4 with StopDark Bluish GrayPart 87083Element 6083620 or 4560177×1
Technic Axle 3YellowPart 4519Element 6130007×2
Technic Connectors
3 pieces
Technic Axle and Pin Connector Angled #5 - 112.5°Dark Bluish GrayPart 32015Element 6271356 or 6195445×2
Technic Pin Connector Hub with 1 AxleWhitePart 22961Element 6179606×1
Technic Beams
2 pieces
Technic Beam 1 x 5 ThickYellowPart 32316Element 4142133 or 4128590×2
Windscreens and Fuselage
2 pieces
Windscreen 6 x 4 x 1 Hexagonal with HandleMedium NougatPart 27262Element 6590772×2
Flags, Banners and Signs
1 piece
Road Sign Clip-on 2.2 x 2.667 Triangular with Open O ClipMedium NougatPart 65676Element 6590767×1
Tools
1 piece
Brick and Axle Separator v2.0OrangePart 96874Element 6240515 or 4654448×1
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.