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 1White ×2Trans-Clear ×8Trans-Clear is see-through: hold the piece up to a light.
Brick Wedged, Curved 2 x 1 with Stud Notch LeftBlack ×1Dark Blue ×3Black is yellower and darker than Dark Blue.
Brick Wedged, Curved 2 x 1 with Stud Notch RightBlack ×1Dark Blue ×3Black is yellower and darker than Dark Blue.
Plate 1 x 4Black ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Technic Beam 1 x 11 ThickBlack ×22Dark Blue ×20Black is yellower and darker than Dark Blue.
Technic Beam 1 x 15 ThickBlack ×30Dark Blue ×10Black is yellower and darker than Dark Blue.
17 more look-alike pairs
Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleBlack ×46Dark Blue ×22Black is yellower and darker than Dark Blue.
Technic Beam 1 x 7 ThickBlack ×34Dark Blue ×10Black is yellower and darker than Dark Blue.
Technic Beam 1 x 9 Bent (6 - 4) ThickBlack ×16Dark Blue ×6Black is yellower and darker than Dark Blue.
Technic Beam 2 x 4 L-Shape ThickBlack ×35Dark Blue ×6Black is yellower and darker than Dark Blue.
Technic Panel 3 x 11 x 1Black ×7Dark Blue ×4Black is yellower and darker than Dark Blue.
Technic Panel Curved 3 x 13Black ×1Dark Blue ×6Black is yellower and darker than Dark Blue.
Technic Panel Fairing #1 Small Smooth Short, Side ABlack ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Technic Panel Fairing #13 Large Short Smooth, Side ABlack ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Technic Panel Fairing #14 Large Short Smooth, Side BBlack ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Technic Panel Fairing #2 Small Smooth Short, Side BBlack ×1Dark Blue ×1Black is yellower and darker than Dark Blue.
Technic Panel Fairing #21 5L Small Smooth, Side BBlack ×8Dark Blue ×6Black is yellower and darker than Dark Blue.
Technic Panel Fairing #22 5L Small Smooth, Side ABlack ×8Dark Blue ×6Black is yellower and darker than Dark Blue.
Tile 1 x 2 with GrooveBlack ×1Dark Blue ×2Black is yellower and darker than Dark Blue.
Brick Curved 4 x 1 Double, No StudsBlack ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Brick Wedged, Curved 2 x 1 with Stud Notch LeftBlack ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Brick Wedged, Curved 2 x 1 with Stud Notch RightBlack ×1Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×4Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Brick Curved 2 x 1 No Studs [1/2 Bow]Dark TanPart 11477Element 6101254×10
Brick Curved 2 x 2 x 2/3Dark TanPart 15068Element 6093038×16
Brick Curved 4 x 1 Double, No StudsDark TanPart 93273Element 6167936×1
Brick Special 1 x 2 with Studs on 2 SidesDark TanPart 52107Element 6135609×2
Plate 1 x 2Dark TanPart 3023Element 4528604 or 4497082×3
Plate 1 x 3Dark TanPart 3623Element 6132768 or 4497086×4
Plate 1 x 4Dark TanPart 3710Element 4626904 or 4497088×4
Plate 2 x 2Dark TanPart 3022Element 6047415 or 4497081×1
Plate 2 x 3Dark TanPart 3021Element 6035540 or 6015192×2
Plate 2 x 4Dark TanPart 3020Element 4497077 or 4267874×4
Technic Beam 1 x 11.5 Double Bent ThickDark TanPart 32009Element 6271186 or 6223319×8
Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel SurfaceDark TanPart 24119Element 6220599×3
Technic Panel Fairing #21 5L Small Smooth, Side BDark TanPart 11946Element 6593774 or 6352644×7
Technic Panel Fairing #22 5L Small Smooth, Side ADark TanPart 11947Element 6593776 or 6352663×7
Tile 1 x 1 with GrooveDark TanPart 3070bElement 6055172×2
Tile 1 x 2 with GrooveDark TanPart 3069bElement 4496699×1
Tile 1 x 3Dark TanPart 63864Element 6015452×8
White
52 pieces
Plate 1 x 1WhitePart 3024Element 6548262 or 302401Also in Trans-Clear×2
Plate 1 x 2WhitePart 3023Element 6552100 or 6548261×2
Plate 1 x 3WhitePart 3623Element 6552105 or 6550144×2
Plate 1 x 4WhitePart 3710Element 6552108 or 6548266×2
Plate 3 x 3WhitePart 11212Element 6552153 or 6104805×2
Plate Round 1 x 1 with Solid StudWhitePart 6141Element 6601919 or 614101×5
Plate Special 1 x 2 with Pin Hole on TopWhitePart 11458Element 6632146 or 6057414×2
Rubber Belt Small [15mm ID] [Round Cross Section]WhitePart 85543Element 6699001 or 4580665×2
Technic Driving Ring ConnectorWhitePart 18948Element 6276052 or 6100932×8
Technic Gear 24 Tooth Clutch with Dark Bluish Gray CenterWhitePart 76244Element 6198486 or 6036892×1
Technic Pin Connector Round 1L [Beam]WhitePart 18654Element 6550155 or 6177114×23
Tile 1 x 4 with Bugatti Chiron Serial NumberWhitePart 2431pr0105Element 6225597×1
Tan
45 pieces
Technic Axle 4 with Centre StopTanPart 99008Element 4666999×9
Technic Axle Pin without Friction Ridges LengthwiseTanPart 3749Element 4666579 or 4186017×1
Technic Engine Crankshaft CenterTanPart 2854Element 6355727 or 6013937×9
Technic Gear 12 Tooth BevelTanPart 6589Element 4565452 or 4514556×7
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]TanPart 18575Element 6346517 or 6084724×7
Technic Pin 3/4TanPart 32002Element 6663097 or 6013938×2
Technic Pin Long without Friction Ridges, with Anti-Roll NotchTanPart 39888Element 6321305×10
Orange
25 pieces
Gear ShifterOrangePart 35188Element 6227330×2
Technic Axle and Pin Connector Angled #2 - 180°OrangePart 32034Element 6271874 or 6135092×3
Technic Pin Connector Round [Slotted]OrangePart 62462Element 6173129 or 4538144×3
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]OrangePart 32054Element 6143033 or 4229603×17
Reddish Brown
23 pieces
Technic Axle 3 with StopReddish BrownPart 24316Element 6135494×18
Technic Axle 5 with StopReddish BrownPart 15462Element 6159763×5
Trans-Clear
8 pieces
Plate 1 x 1Trans-ClearPart 3024Element 6513962 or 6252041Also in White×8
Flat Silver
6 pieces
Tile Special 1 x 2 Grille with Bottom GrooveFlat SilverPart 2412bElement 4619636×6
Lime
5 pieces
Technic Beam 1 x 5 ThickLimePart 32316Element 4661486 or 4571220×3
Tile Round 1 x 1LimePart 98138Element 6284583 or 6057878×2
[No Color/Any Color]
1 piece
Sticker Sheet for Set 42083-1[No Color/Any Color]Part 38973Element 6228775×1
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.