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.
Bracket 1 x 1 - 1 x 2 InvertedBlack ×2Dark Blue ×2Black is yellower and darker than Dark Blue.
Plate 1 x 1Black ×6Dark Blue ×4Black is yellower and darker than Dark Blue.
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]Black ×4Dark Blue ×3Black is yellower and darker than Dark Blue.
Tile 1 x 2 with GrooveBlack ×3Dark Blue ×3Black is yellower and darker than Dark Blue.
Plate 1 x 1Black ×6Dark Bluish Gray ×6Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×5Dark Bluish Gray ×8Black is darker than Dark Bluish Gray.
11 more look-alike pairs
Plate 1 x 6Black ×12Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 2 CornerBlack ×2Dark Bluish Gray ×4Black is darker than Dark Bluish Gray.
Plate 2 x 3Black ×7Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 4Black ×10Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 2 x 8Black ×8Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×4Dark Bluish Gray ×10Black is darker than Dark Bluish Gray.
Plate Special 1 x 4 with 2 Studs with Groove [New Underside]Black ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 1 with GrooveBlack ×6Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile 1 x 2 with GrooveBlack ×3Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Tile 2 x 2 CornerBlack ×4Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Tile Special 1 x 2 Grille with Bottom GrooveBlack ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
LEGO's request form asks for the set number (10338) and each piece's element ID, both listed above.
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Clear every mark for this set?
Piece checklist
Yellow
398 pieces
Bracket 1 x 1 - 1 x 2 InvertedYellowPart 73825Element 6330893×6
Bracket 5 x 2 x 2 1/3 with Holes, Inside Stud HolderYellowPart 76766Element 6506034×2
Brick 1 x 1YellowPart 3005Element 300524×6
Brick 1 x 2YellowPart 3004Element 4613966 or 300424×2
Brick 1 x 3YellowPart 3622Element 362224×6
Brick Curved 1 x 1 x 2/3 Double Curved Top, No StudsYellowPart 49307Element 6394524×4
Brick Curved 2 x 1 No Studs [1/2 Bow]YellowPart 11477Element 6029947×11
Brick Curved 2 x 1 No Studs with Orange Headlight PrintYellowPart 11477pr0056Element 6486936×1
Brick Curved 2 x 2 x 2/3YellowPart 15068Element 6079007×20
Brick Curved 3 x 1 No StudsYellowPart 50950Element 4247771×6
Brick Curved 3 x 2 No StudsYellowPart 24309Element 6198024×4
Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]YellowPart 11153Element 6024715×2
Brick Round 2 x 2 with Axle HoleYellowPart 3941Element 614324 or 394124×2
Brick Round Corner 4 x 4 x 1YellowPart 5651Element 6481578×8
Brick Round Corner, Curved 3 x 3 x 1 Quarter CircleYellowPart 76797Element 6397957×2
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)YellowPart 54200Element 4504381 or 42830952 spares in the box×12
Brick Sloped 30° 1 x 2 x 2/3YellowPart 85984Element 4550348×3
Brick Sloped 45° 2 x 2YellowPart 3039Element 303924×2
Brick Sloped Inverted 45° 2 x 1YellowPart 3665Element 366524×2
Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]YellowPart 60475bElement 6336971 or 4515354×4
Brick Special 1 x 1 x 1 2/3 with Studs on 1 SideYellowPart 32952Element 6441826×6
Brick Special 1 x 2 with GrilleYellowPart 2877Element 287724×2
Brick Special 1 x 2 with Studs on 2 SidesYellowPart 52107Element 6289719 or 4557157×1
Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 SidesYellowPart 67329Element 6310247×1
Brick Wedged, Curved 3 x 2 with Stud Notch LeftYellowPart 80177Element 6404640×1
Brick Wedged, Curved 3 x 2 with Stud Notch RightYellowPart 80178Element 6404636×1
Hinge Brick 1 x 2 Locking with 1 Finger Horizontal EndYellowPart 30541Element 6500764 or 4181835×2
Hinge Brick 1 x 2 Locking with 2 Fingers Horizontal End, 7 TeethYellowPart 54672Element 6506031×2
Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]YellowPart 1927Element 6416522×8
Plate 1 x 1YellowPart 3024Element 3024243 spares in the box×36
Plate 1 x 2YellowPart 3023Element 302324×35
Plate 1 x 3YellowPart 3623Element 362324×20
Plate 1 x 4YellowPart 3710Element 371024×16
Plate 1 x 6YellowPart 3666Element 366624×11
Plate 2 x 2YellowPart 3022Element 4613978 or 302224×8
Plate 2 x 2 CornerYellowPart 2420Element 242074 or 242024×6
Plate 2 x 3YellowPart 3021Element 302124×4
Plate 2 x 4YellowPart 3020Element 302024×8
Plate 2 x 6YellowPart 3795Element 379524×4
Plate 2 x 8YellowPart 3034Element 303424×4
Plate Round 1 x 1 with Solid StudYellowPart 6141Element 6141241 spare in the box×2
Plate Round 4 x 4 with Pin HoleYellowPart 60474Element 4515349×2
Plate Round Corner 2 x 2 with 1 x 1 CutoutYellowPart 79491Element 6365891×4
Plate Round Corners 2 x 6 DoubleYellowPart 18980Element 6116475×1
Plate Special 1 x 2 [Side Handle Closed Ends]YellowPart 48336Element 4501232×2
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)YellowPart 15573Element 6092583×2
Plate Special 1 x 2 with Clip Horizontal on EndYellowPart 63868Element 6347284 or 4535740×6
Plate Special 1 x 2 with Door RailYellowPart 32028Element 4141630×3
Plate Special 1 x 2 with Handle on End [Closed Ends]YellowPart 60478Element 4515367×6
Plate Special 1 x 2, Top Clip [Open O]YellowPart 44861Element 6360077×2
Plate Special 1 x 4 Rounded with 2 Open StudsYellowPart 77845Element 6506036×2
Plate Special 2 x 2 with Only 2 studsYellowPart 33909Element 6388491 or 6224666×2
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated VersionYellowPart 4304Element 6469455×9
Plate Special 3 x 2 with Rounded End, HoleYellowPart 3176Element 4188313 or 4141738×1
Technic Axle 7YellowPart 44294Element 6130009×1
Technic Brick 1 x 2 [1 Pin Hole]YellowPart 3700Element 370024×1
Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedYellowPart 32123bElement 6271167 or 32123241 spare in the box×2
Tile 1 x 1 with GrooveYellowPart 3070bElement 3070241 spare in the box×6
Tile 1 x 2 with GrooveYellowPart 3069bElement 306924×9
Tile 1 x 3YellowPart 63864Element 4558172×10
Tile 1 x 4 with GrooveYellowPart 2431Element 243124×2
Tile 2 x 2 Curved, MacaroniYellowPart 27925Element 6275508 or 6195186×4
Tile 2 x 2 with GrooveYellowPart 3068bElement 6388487 or 306824×10
Tile 2 x 2 with Red Autobot / Bumblebee Face PrintYellowPart 3068bpr0724Element 6486935×2
Tile 2 x 3YellowPart 26603Element 6388483 or 6179184×2
Tile 2 x 4 with GrooveYellowPart 87079Element 6388490 or 4560181×1
Tile Round 1 x 1 QuarterYellowPart 25269Element 61951831 spare in the box×8
Tile Special 1 x 1 with Clip with Rounded EdgesYellowPart 15712Element 6348056 or 6116726×4
Tile Special 2 x 2 InvertedYellowPart 11203Element 6411902 or 6388485×5
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom PinRedPart 32064aElement 6196217 or 4513987×2
Technic Pin 1/2 with FrictionRedPart 89678Element 63781201 spare in the box×2
Trans-Light Blue
15 pieces
Brick 1 x 1Trans-Light BluePart 3005Element 6514210 or 6240551×4
Brick Round 1 x 1 Open StudTrans-Light BluePart 3062bElement 6514238 or 6238677×1
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)Trans-Light BluePart 54200Element 6245277 or 60734451 spare in the box×4
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]Trans-Light BluePart 87552Element 6581813 or 6253230×4
Windscreen 2 x 4 x 2Trans-Light BluePart 3823Element 6581802 or 6253682×2
Blue
8 pieces
Brick 1 x 2BluePart 3004Element 4613959 or 300423×1
Plate 2 x 2BluePart 3022Element 4613973 or 302223×2
Plate Round 1 x 1 with Solid StudBluePart 6141Element 6141231 spare in the box×2
Technic Axle Pin with Friction Ridges LengthwiseBluePart 43093Element 4309323 or 4206482×3
Bright Light Orange
8 pieces
Brick Special 1 x 1 with Studs on 2 Adjacent SidesBright Light OrangePart 26604Element 6292415×6
Tile Special Round 1 x 1 with Hollow BarBright Light OrangePart 20482Element 62237191 spare in the box×2
Trans-Orange
8 pieces
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki EyeTrans-OrangePart 58176Element 6507868 or 61717641 spare in the box×2
Plate Round 1 x 1 with Solid StudTrans-OrangePart 6141Element 6514059 or 62402271 spare in the box×4
Tile Round 1 x 1 Half CircleTrans-OrangePart 24246Element 6507959 or 62491161 spare in the box×2
White
8 pieces
Bar 4L (Lightsaber Blade / Wand)WhitePart 30374Element 6116602 or 4129836×1
Brick Special 1 x 1 with Studs on 2 SidesWhitePart 47905Element 6548273 or 4626882×1
Tile 2 x 3WhitePart 26603Element 6552162 or 6550161×2
Wheel 30 x 14WhitePart 56904Element 4539270×4
Trans-Clear
4 pieces
Dish 2 x 2 Inverted [Radar]Trans-ClearPart 4740Element 6514246 or 6245306×2
Tile Round 1 x 1 with Bee PrintTrans-ClearPart 98138pr0208Element 6532091 or 63506561 spare in the box×2
Green
2 pieces
Technic Brick 1 x 2 [1 Pin Hole]GreenPart 3700Element 6230235 or 4519977×2
Reddish Brown
2 pieces
Technic Axle 3 with StopReddish BrownPart 24316Element 6135494×2
Trans-Red
2 pieces
Tile Round 1 x 1 Half CircleTrans-RedPart 24246Element 6507960 or 62640331 spare in the box×2
Dark Tan
1 piece
Plate 1 x 2Dark TanPart 3023Element 4528604 or 4497082×1
Dark Turquoise
1 piece
Brick and Axle Separator v2.0Dark TurquoisePart 96874Element 6254100×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 10338-1[No Color/Any Color]Part 10109522Element 6499876×1
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.