Free tool
LEGO Missing Piece Checker
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.
Checking
366 pieces in 124 part and color combinations.
Your missing list
LEGO's request form asks for the set number (40433) and each piece's element ID, both listed above.
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Piece checklist
Black
206 pieces
Bracket 1 x 2 - 1 x 2
Black
Part 99781
Element 6016172
×10
Missing
Bracket 1 x 2 - 1 x 2 Inverted
Black
Part 99780
Element 6020193
×8
Missing
Bracket 1 x 2 - 2 x 2 Inverted
Black
Part 99207
Element 6000650
×2
Missing
Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom
Black
Part 11215
Element 6039194
×2
Missing
Brick 1 x 10
Black
Part 6111
Element 611126
×1
Missing
Brick Arch 8 x 1 x 1 2/3 Curved
Black
Part 50967
Element 6289822 or 6096712
×8
Missing
Brick Curved 2 x 1 No Studs [1/2 Bow]
Black
Part 11477
Element 6047276
×8
Missing
Brick Curved 2 x 2 x 2/3
Black
Part 15068
Element 6053077
×6
Missing
Brick Curved 4 x 1 Double, No Studs
Black
Part 93273
Element 4613153
×2
Missing
Brick Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]
Black
Part 11153
Element 6580394 or 6037746
×4
Missing
Brick Sloped 10° 6 x 8
Black
Part 4515
Element 6440324 or 4161067
×1
Missing
Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate
Black
Part 61409
Element 4541191
×10
Missing
Brick Sloped 18° 4 x 1
Black
Part 60477
Element 4515362
×2
Missing
Brick Sloped 18° 4 x 2
Black
Part 30363
Element 4185583
×2
Missing
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)
Black
Part 54200
Element 4504382 or 4287159
×4
Missing
Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder
Black
Part 15571
Element 6051508
×2
Missing
Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version]
Black
Part 15672
Element 6069000 or 4653087
×4
Missing
Brick Sloped Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection
Black
Part 4287c
Element 428726
×6
Missing
Brick Special 1 x 1 with Headlight
Black
Part 4070
Element 407026
×2
Missing
Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side
Black
Part 32952
Element 6228987
×4
Missing
Brick Wedged, Curved 4 x 3 No Studs [Plain]
Black
Part 64225
Element 6009018 or 4539743
×1
Missing
Brick Wedged, Curved Triple 4 x 4 x 2/3, 2 Studs
Black
Part 45677
Element 4191191
×1
Missing
Cone 1 x 1 [Top Groove]
Black
Part 59900
Element 4529236
×2
Missing
Cone 4 x 4 x 2 Hollow No Studs
Black
Part 4742
Element 4550922 or 4248076
×1
Missing
Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes
Black
Part 6585
Element 6169982 or 4500902
×1
Missing
Launcher, Plate Special 1 x 2 with Mini Blaster
Black
Part 15403
Element 6102734
×2
Missing
Light Cover 1 x 1 Round with Internal Bar / Bionicle Barraki Eye
Black
Part 58176
Element 6174075 or 6070376
×1
Missing
Plate 1 x 1
Black
Part 3024
Element 302426
×16
Missing
Plate 1 x 10
Black
Part 4477
Element 447726
×1
Missing
Plate 1 x 2
Black
Part 3023
Element 302326
×12
Missing
Plate 1 x 3
Black
Part 3623
Element 362326
×6
Missing
Plate 1 x 6
Black
Part 3666
Element 366626
×7
Missing
Plate 2 x 10
Black
Part 3832
Element 383226
×3
Missing
Plate 2 x 2 Corner
Black
Part 2420
Element 242026
×4
Missing
Plate 2 x 3
Black
Part 3021
Element 302126
×2
Missing
Plate Special 1 x 2 [Side Handle Closed Ends]
Black
Part 48336
Element 4225201
×2
Missing
Plate Special 1 x 2 with Clip Horizontal on End
Black
Part 63868
Element 6336989 or 4535739
×2
Missing
Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes
Black
Part 92593
Element 4599499
×1
Missing
Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins
Black
Part 47720
Element 6354604 or 4217725
×1
Missing
Tail 4 x 1 with Pin Hole
Black
Part 28779
Element 6171909
×2
Missing
Technic Brick 1 x 1 with Pin Hole
Black
Part 6541
Element 654126
×2
Missing
Technic Pin with Friction Ridges Lengthwise and Center Slots
Black
Part 2780
Element 4121715 or 278026
×6
Missing
Tile 1 x 3
Black
Part 63864
Element 4558170
×2
Missing
Tile 1 x 6 with Groove
Black
Part 6636
Element 663626
×2
Missing
Tile Round 1 x 1
Black
Part 98138
Element 6284070 or 6139403
×6
Missing
Tile Special 1 x 2 Grille with Bottom Groove
Black
Part 2412b
Element 241226
×4
Missing
Tile Special Round 1 x 1 with Hollow Bar
Black
Part 20482
Element 6186675 or 6167933
×4
Missing
Tyre 30.4 x 14 VR Solid
Black
Part 58090
Element 6601610 or 4550937
×2
Missing
Tyre 37 x 18 R Balloon
Black
Part 56891
Element 6589426 or 6518543
×2
Missing
Wedge Plate 2 x 2 Left
Black
Part 24299
Element 6141554
×4
Missing
Wedge Plate 2 x 2 Right
Black
Part 24307
Element 6141556
×4
Missing
Wedge Plate 3 x 2 Left
Black
Part 43723
Element 4180536
×3
Missing
Wedge Plate 3 x 2 Right
Black
Part 43722
Element 4180508
×3
Missing
Wheel 18 x 12 with Axle Hole and Stud
Black
Part 18976
Element 6327048 or 6104403
×1
Missing
Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes
Black
Part 55981
Element 6359824 or 6109682
×2
Missing
Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes
Black
Part 55982
Element 4517737
×2
Missing
Wheel Arch, Mudguard 4 x 2 1/2 x 2 with 2 x 2 Plate
Black
Part 50745
Element 4260488
×1
Missing
Light Bluish Gray
48 pieces
Dark Bluish Gray
31 pieces
[No Color/Any Color]
1 piece
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.
Request a replacement from LEGO
Buy the piece
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.