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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.

Knight Bus Adventure

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76446 Knight Bus Adventure

483 pieces in 133 part and color combinations, plus 4 minifigures.

The official piece count includes the 16 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

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Piece checklist

Plates 80 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 3 Black Part 3623 Element 362326 ×3
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 4 x 4 Corner Black Part 2639 Element 6483102 or 4226683 ×1
  • Plate 1 x 2 Bright Pink Part 3023 Element 4654128 or 4245303 ×3
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×4
  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×2
  • Plate 1 x 1 Dark Purple Part 3024 Element 6231376 or 4589621 1 spare in the box ×7
  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×13
  • Plate 1 x 4 Dark Purple Part 3710 Element 6167464 or 4225140 ×9
  • Plate 1 x 6 Dark Purple Part 3666 Element 4655691 or 4225141 ×8
  • Plate 2 x 2 Dark Purple Part 3022 Element 6047422 or 4224861 ×2
  • Plate 2 x 2 Corner Dark Purple Part 2420 Element 6167461 or 4225179 ×6
  • Plate 2 x 3 Dark Purple Part 3021 Element 4225142 ×1
  • Plate 2 x 4 Dark Purple Part 3020 Element 6030277 or 4589625 ×1
  • Plate 4 x 6 Dark Purple Part 3032 Element 6147032 or 6022076 ×6
  • Plate 6 x 6 Dark Purple Part 3958 Element 6426669 or 6251832 ×2
  • Plate 2 x 16 Light Bluish Gray Part 4282 Element 4211486 ×1
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×4

Bricks 78 pieces

  • Brick 1 x 4 Black Part 3010 Element 301026 ×3
  • Brick 1 x 1 Dark Purple Part 3005 Element 6084028 or 4640738 ×15
  • Brick 1 x 12 Dark Purple Part 6112 Element 6525446 or 6262511 ×10
  • Brick 1 x 2 Dark Purple Part 3004 Element 6104154 or 4640739 ×17
  • Brick 1 x 4 Dark Purple Part 3010 Element 6185995 or 4640611 ×14
  • Brick 2 x 2 Corner Dark Purple Part 2357 Element 6176193 or 4589618 ×8
  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×3
  • Brick 1 x 2 x 3 with Bottom Stud Holder Tan Part 22886 Element 6445058 ×1
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×4
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×2
  • Brick 2 x 2 without Inside Ridges Trans-Clear Part 6223 Element 6514093 or 6239418 ×1

Windows and Doors 71 pieces

  • Window 1 x 4 x 3 without Shutter Tabs Black Part 60594 Element 4530589 or 4520620 ×3
  • Window 1 x 3 x 2 Dark Purple Part 6798 Element 6508983 ×34
  • Glass for Window 1 x 3 x 2 Trans-Clear Part 7757 Element 6570743 or 6523322 ×34

Tiles 58 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×7
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×5
  • Tile 2 x 2 Corner Black Part 14719 Element 6133722 ×3
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile 2 x 3 Black Part 26603 Element 6162892 ×3
  • Tile 2 x 6 Black Part 69729 Element 6318582 ×1
  • Tile 1 x 2 with Groove Bright Pink Part 3069b Element 4580010 ×3
  • Tile 1 x 4 with Groove Coral Part 2431 Element 6258570 ×6
  • Tile 1 x 1 with Groove Dark Purple Part 3070b Element 6167457 1 spare in the box ×4
  • Tile 1 x 2 with Groove Dark Purple Part 3069b Element 4613192 ×8
  • Tile 2 x 6 Dark Purple Part 69729 Element 6513767 ×4
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×1
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×1
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×3
  • Tile 2 x 4 with Groove Reddish Brown Part 87079 Element 4579690 ×2
  • Tile 1 x 2 with Letter, Red Seal Print Tan Part 3069bpr0271 Element 6284163 ×1
  • Tile 2 x 2 with Newspaper, 'ESCAPE from AZKABAN', Sirius Black Print Tan Part 3068bpr9327 Element 6516476 ×1
  • Tile 2 x 4 with Groove Tan Part 87079 Element 6122047 or 4610209 ×1
  • Tile 1 x 2 with Groove Trans-Yellow Part 3069b Element 6514221 or 6251291 ×1

Plates Special 38 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×3
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×2
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×2
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×11
  • Bracket 1 x 1 - 1 x 1 Dark Purple Part 36841 Element 6336391 ×2
  • Bracket 1 x 2 - 2 x 2 Dark Purple Part 44728 Element 6334093 or 4277936 ×1
  • Plate Special 2 x 2 with 2 Pin Holes Light Bluish Gray Part 2817 Element 4211376 ×1
  • Plate Special 2 x 2 with Only 2 studs Light Bluish Gray Part 33909 Element 6212077 ×4
  • Plate Special 2 x 4 with Pins, Reinforced Light Bluish Gray Part 40687 Element 6408542 ×2
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Light Bluish Gray Part 32828 Element 6227897 1 spare in the box ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Light Bluish Gray Part 18674 Element 6183782 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Reddish Brown Part 99207 Element 6226436 ×2
  • Bracket 1 x 1 - 1 x 1 Inverted Tan Part 36840 Element 6365720 ×2
  • Plate Special 2 x 2 with Only 2 studs Tan Part 33909 Element 6221467 ×1

Bricks Special 31 pieces

  • Bracket 3 x 2 x 1 1/3 with Bottom Stud Holder Black Part 73562 Element 6395375 ×13
  • Brick Special 1 x 1 with Clip Horizontal Black Part 60476 Element 6320309 or 4535765 ×1
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Black Part 30136 Element 4644456 or 4519980 ×2
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Dark Purple Part 32952 Element 6517009 or 6264051 ×7
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×2

Plates Round Curved and Dishes 24 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×13
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Plate Special 1 x 4 Rounded with 2 Open Studs Black Part 77845 Element 6428167 ×1
  • Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×1
  • Plate Special 1 x 2 Rounded with 2 Open Studs Light Bluish Gray Part 35480 Element 6248890 ×4
  • Plate Round 1 x 1 with Open Stud Trans-Clear Part 85861 Element 6510164 or 6449836 1 spare in the box ×1

Bricks Curved 21 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×3
  • Brick Curved 1 x 2 x 1 No Studs Dark Purple Part 37352 Element 6264050 ×14
  • Brick Curved 2 x 2 x 2/3 Dark Purple Part 15068 Element 6182217 ×2
  • Brick Curved Inverted 2 x 1 Light Bluish Gray Part 24201 Element 6144138 ×1
  • Brick Curved 1 x 2 x 1 No Studs, No Bottom Stud Holder Trans-Clear Part 7134 Element 6525777 ×1

Tiles Special 11 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×10
  • Tile Special 1 x 1 with Clip with Rounded Edges Light Bluish Gray Part 15712 Element 6308012 or 6071229 ×1

Tiles Round and Curved 9 pieces

  • Tile Round 1 x 1 Dark Purple Part 98138 Element 6476247 1 spare in the box ×2
  • Tile Round 1 x 1 Half Circle Light Bluish Gray Part 24246 Element 6250597 or 6151688 1 spare in the box ×2
  • Tile Round 1 x 1 with Gold Dragon Print Pearl Gold Part 98138pr0353 Element 6445157 1 spare in the box ×1
  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 1 spare in the box ×2
  • Tile Round 1 x 1 Half Circle Trans-Orange Part 24246 Element 6507959 or 6249116 1 spare in the box ×2

Hinges, Arms and Turntables 8 pieces

  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×3
  • Plate Special 6 x 8 Trap Door Frame Horizontal [Long Pin Holders] Dark Purple Part 92107 Element 6517005 ×2
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×3

Wheels and Tyres 8 pieces

  • Tyre 24 x 12 Low Profile Black Part 18977 Element 6102596 ×4
  • Wheel 18 x 12 with Pin Hole and Stud Dark Purple Part 66727 Element 6517007 ×4

Bricks Sloped 7 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 2 spares in the box ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Green Part 3040b Element 4255624 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Purple Part 54200 Element 4567509 or 4255409 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Tan Part 85984 Element 4624086 ×1

Bricks Round and Cones 6 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×1
  • Brick Round, Curved 2 x 2 x 1 1/3, Corner Dark Purple Part 67810 Element 6517008 ×2
  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1
  • Brick Round 2 x 2 Dome Top, Hollow Stud Trans-Clear Part 30367c Element 6507967 or 6264987 ×1
  • Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 ×1

Panels 6 pieces

  • Panel 1 x 2 x 1 with Rounded Corners and Central Divider Black Part 93095 Element 6640376 or 6115086 ×3
  • Panel 1 x 2 x 1 [Rounded Corners] Light Bluish Gray Part 4865b Element 6146223 ×3

Bars, Ladders and Fences 5 pieces

  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×1
  • Bar 6L with Stop Ring Light Bluish Gray Part 63965 Element 6170418 or 6081975 2 spares in the box ×2
  • Bar Holder with Clip Light Bluish Gray Part 11090 Element 6355025 ×1
  • Bar Holder with Hole and Bar Handle Light Bluish Gray Part 23443 Element 6343976 or 6152107 ×1

Minifig Accessories 5 pieces

  • Equipment Wand [Individual] Dark Brown Part 36752a 1 spare in the box ×1
  • Equipment Candlestick Light Bluish Gray Part 37762 Element 6436421 ×3
  • Bag / Messenger Pouch with Long Strap Reddish Brown Part 61976 Element 6270078 or 6121728 ×1

Transportation - Land 5 pieces

  • Wheel Arch, Mudguard 4 x 2 x 2 1/2 Black Part 3387 Element 6443446 ×4
  • Steering Stand 1 x 2 with Black Steering Wheel Light Bluish Gray Part 3829c01 Element 4226995 ×1

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, No Groove Medium Nougat Part 4738c Element 6102984 ×1
  • Treasure Chest Lid, Flat with 2 Studs Medium Nougat Part 80835 Element 6394960 ×1

Plants & Trees 2 pieces

  • Plant, Plate 1 x 1 Round with 3 Leaves Dark Green Part 32607 Element 6400754 ×2

Windscreens and Fuselage 2 pieces

  • Windscreen 2 x 6 x 2 Train without Glass Dark Purple Part 13760 Element 6517006 or 6262484 ×1
  • Glass for Windscreen 2 x 6 x 2 Trans-Clear Part 13756 Element 6507909 or 6275041 ×1

Animals / Creatures 1 piece

  • Animal, Dog, Alsatian / German Shepherd (Police Dog) with Bright Light Orange Eyes, Dark Bluish grey Nose Print (Sirius Black) Black Part 92586pr0005 Element 6516470 ×1

Bricks Wedged 1 piece

  • Brick Wedged, Angled 4 x 2 Left Dark Purple Part 41768 Element 6517010 or 4225196 ×1

Minifig Heads 1 piece

  • Minifig Head [Plain] [Vented Stud - 2 Holes] Trans-Clear Part 28621 Element 6513992 or 6168665 ×1

Plates Wedged 1 piece

  • Wedge Plate 2 x 2 Right Black Part 24307 Element 6141556 ×1

Rock 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Clear Part 30153 Element 6513976 or 6247798 1 spare in the box ×1

Stickers 1 piece

  • Sticker Sheet for Set 76446-1 [No Color/Any Color] Part 10110152 Element 6516483 ×1

Minifigures 4 figures

  • Harry Potter Minifigure, checked as a whole figure ×1
  • Ernie Prang, Olive Green Sweater, Dark Bluish Gray Legs Minifigure, checked as a whole figure ×1
  • Stan Shunpike Minifigure, checked as a whole figure ×1
  • Sleeping Witch Minifigure, checked as a whole figure ×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.

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.

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