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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

Checking

4755 Knight Bus

236 pieces in 72 part and color combinations, plus 2 minifigures.

LEGO counts 243 pieces. This inventory comes from a separate parts catalog and lists 244, including the 8 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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

Bricks 65 pieces

  • Brick 1 x 12 Black Part 6112 Element 611226 ×2
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×1
  • Brick 1 x 1 Dark Purple Part 3005 Element 6084028 or 4640738 ×20
  • Brick 1 x 10 Dark Purple Part 6111 Element 4589612 or 4225241 ×5
  • Brick 1 x 2 Dark Purple Part 3004 Element 6104154 or 4640739 ×16
  • Brick 1 x 4 Dark Purple Part 3010 Element 6185995 or 4640611 ×5
  • Brick 1 x 6 Dark Purple Part 3009 Element 4589609 or 4225242 ×7
  • Brick 2 x 2 Dark Purple Part 3003 Element 4653960 or 4589613 ×1
  • Brick 2 x 4 Dark Purple Part 3001 Element 4626935 or 4589602 ×4
  • Brick 2 x 6 Dark Purple Part 2456 Element 6147004 or 4589615 ×2
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×1

Plates 42 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×7
  • Plate 1 x 6 Black Part 3666 Element 366626 ×3
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×7
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 6 x 12 Black Part 3028 Element 302826 ×1
  • Plate 6 x 16 Black Part 3027 Element 302726 ×1
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×1
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×1
  • Plate 1 x 1 Dark Purple Part 3024 Element 6231376 or 4589621 ×2
  • Plate 1 x 4 Dark Purple Part 3710 Element 6167464 or 4225140 ×1
  • Plate 1 x 6 Dark Purple Part 3666 Element 4655691 or 4225141 ×1
  • Plate 2 x 2 Corner Dark Purple Part 2420 Element 6167461 or 4225179 ×4
  • Plate 2 x 6 Dark Purple Part 3795 Element 6109936 or 4223712 ×2
  • Plate 4 x 4 Dark Purple Part 3031 Element 6109819 or 4243837 ×3
  • Plate 4 x 6 Dark Purple Part 3032 Element 6147032 or 6022076 ×2
  • Plate 4 x 6 Red Part 3032 Element 303221 ×3

Windows and Doors 39 pieces

  • Door 1 x 3 x 2 Right Dark Purple Part 3188 Element 4226156 ×1
  • Window 1 x 2 x 3 Train Dark Purple Part 4035 Element 4225246 ×2
  • Window 1 x 4 x 3 Train with Shutter Holes and Solid Studs on Ends Dark Purple Part 6556 Element 4640740 or 4225262 ×18
  • Glass for Train Window 1 x 4 x 3 Trans-Clear Part 4034 Element 403440 ×18

Tiles 28 pieces

  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 3 spares in the box ×5
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×3
  • Tile 1 x 4 with 'KNIGHT BUS' Print Black Part 2431pr0069 Element 4222726 ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×8
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×6
  • Tile 1 x 2 with Dark Bluish Gray Bedroll Print Tan Part 3069bpr0031 Element 4228344 ×1
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×2

Bricks Curved 16 pieces

  • Brick Arch 1 x 3 x 2 Curved Top Black Part 6005 Element 4618880 or 4188168 ×2
  • Brick Arch 1 x 6 Dark Purple Part 3455 Element 4225249 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Purple Part 6091 Element 6411365 or 6143993 ×4
  • Brick Curved 1 x 4 x 1 1/3 No Studs, Lowered Inside Support Dark Purple Part 6191 Element 4225263 ×8

Bricks Sloped 9 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Black Part 3747a ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Dark Purple Part 4287b Element 4225270 ×2
  • Brick Sloped 45° 2 x 2 with Orange Pillow Print White Part 3039pr9965 Element 4225206 ×3

Plates Round Curved and Dishes 9 pieces

  • Dish 2 x 2 Inverted [Radar] Dark Bluish Gray Part 4740 Element 4211010 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] White Part 2654 Element 6601843 or 6552259 ×6

Wheels and Tyres 8 pieces

  • Tyre 30 x 10.5 Offset Tread Black Part 2346 Element 234676 or 234626 ×4
  • Wheel Freestyle with 2 x 2 Studs and Pin Hole Dark Purple Part 6248 Element 4226125 ×4

Plates Special 3 pieces

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Purple Part 3794a Element 4225239 ×1
  • Plate Special 2 x 2 with Wheels Holder Wide - Technic Pins Light Bluish Gray Part 47720 Element 4529120 or 4219243 ×2

Transportation - Land 3 pieces

  • Grille 1 x 2 x 2 Round Top [Lights & Centre Top Stud] Black Part 30147 Element 4226127 ×1
  • Seat / Chair 2 x 2 Light Bluish Gray Part 4079 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Red Part 3829c01 Element 9552 ×1

Windscreens and Fuselage 3 pieces

  • Windscreen 2 x 4 x 2 Vertical with Shrunken Head Print Trans-Clear Part 4594pr0001 Element 4225244 ×1
  • Windscreen 2 x 6 x 2, Wide Top Trans-Clear Part 4176 Element 4502193 or 4179426 ×2

Animals / Creatures 2 pieces

  • Animal, Dog / Wolf Dark Bluish Gray Part 48812 Element 4225281 ×1
  • Animal, Bird, Owl Large, Rounded Features White Part 40232 Element 4508643 or 4153277 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
  • Lamp Post 2 x 2 x 7 with 6 Base Flutes Dark Bluish Gray Part 2039 Element 4210977 or 203927 ×1

Bricks Round and Cones 2 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Neon Green Part 4589 Element 618849 or 458949 ×1
  • Brick Round 1 x 1 Open Stud Trans-Yellow Part 3062b Element 6514236 or 6238674 ×1

Bricks Special 2 pieces

  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×2

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, with Groove Reddish Brown Part 4738b Element 4280114 or 4211162 ×1
  • Treasure Chest Lid [Thick Hinge] Reddish Brown Part 4739a Element 6254220 or 6167676 ×1

Plants & Trees 1 piece

  • Plant, Bush 2 x 2 x 4 Green Part 6064 Element 6269009 or 606428 ×1

Minifigures 2 figures

  • Stan Shunpike, Dark Purple Tie Minifigure, checked as a whole figure ×1
  • Harry Potter, Open Blue Jacket 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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