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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.

Professor Lupin's Classroom

Checking

4752 Professor Lupin's Classroom

145 pieces in 77 part and color combinations, plus 3 minifigures.

The piece count includes the 14 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

Dark Bluish Gray 32 pieces

  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×3
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Dark Bluish Gray Part 2453a ×1
  • Brick 1 x 2 Dark Bluish Gray Part 3004 Element 4211088 ×8
  • Brick 1 x 2 x 2 with Inside Axle Holder Dark Bluish Gray Part 3245b ×1
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Dark Bluish Gray Part 2454a ×6
  • Brick 1 x 3 Dark Bluish Gray Part 3622 Element 4211104 ×1
  • Brick 1 x 8 Dark Bluish Gray Part 3008 Element 4211099 ×1
  • Brick 2 x 2 Dark Bluish Gray Part 3003 Element 4211060 ×4
  • Brick 8 x 16 Dark Bluish Gray Part 4204 Element 6283470 or 4217133 ×1
  • Brick 8 x 8 Dark Bluish Gray Part 4201 Element 4210874 ×1
  • Brick Arch 1 x 4 Dark Bluish Gray Part 3659 Element 4210999 ×1
  • Brick Arch 1 x 6 Dark Bluish Gray Part 3455 Element 4211123 ×2
  • Insect Accessory, Spider Web Dark Bluish Gray Part 30240 Element 4528856 or 4216738 ×1
  • Window 1 x 2 x 2 2/3 with Rounded Top Dark Bluish Gray Part 30044 Element 6143849 or 4224064 ×1

Black 21 pieces

  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×1
  • Brick Arch 1 x 12 x 3 Black Part 6108 Element 4566307 or 610826 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Black Part 4349 Element 434926 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 4 [Lower] Black Part 3831 Element 383126 ×2
  • Hinge Brick 1 x 4 [Upper] Black Part 3830 Element 6344999 or 6011458 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 1 x 4 Black Part 3710 Element 371026 ×2
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 8 x 8 Black Part 41539 Element 4166619 ×1
  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
  • Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top Black Part 30046 Element 6173105 or 3004626 ×1

Sand Green 20 pieces

  • Brick Sloped 33° 3 x 1 Sand Green Part 4286 Element 4598531 or 4155045 ×2
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Sand Green Part 3048c Element 6134271 or 4597660 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Green Part 3040b Element 6083976 or 4597014 ×8
  • Brick Sloped 45° 2 x 2 Sand Green Part 3039 Element 6083972 or 4598055 ×4
  • Tile 1 x 4 with Groove Sand Green Part 2431 Element 6192923 or 4616588 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Sand Green Part 2412b Element 6223126 or 4163471 ×2

Tan 18 pieces

  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×5
  • Door 2 x 5 x 5 Swivel, Bracket Base Tan Part 40249 Element 4222490 or 4181843 ×1
  • Plate Special 2 x 2 with Pin on Bottom, Small Holes in Plate and Rotational Locking Fingers on Underside Tan Part 2476b ×1
  • Stairs Spiral Step Tan Part 40243 Element 6463790 or 6446085 ×8
  • Support 1 x 1 x 5 1/3 Spiral Staircase Axle Tan Part 40244 Element 4288363 or 4153421 ×1
  • Tile 1 x 2 with Chocolate Bar Print Tan Part 3069bpr0087 Element 4222723 ×1
  • Tile Special 2 x 2 with Top Pin Tan Part 2460 Element 6187580 or 4222381 ×1

Light Bluish Gray 14 pieces

  • Brick Arch 1 x 8 x 2 Light Bluish Gray Part 3308 Element 4221589 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Light Bluish Gray Part 4460a ×4
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×1
  • Panel 1 x 2 x 1 [Square Corners] Light Bluish Gray Part 4865a Element 4211515 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Light Bluish Gray Part 4085c Element 4211479 ×2
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1

Reddish Brown 10 pieces

  • Bag / Briefcase Reddish Brown Part 4449 Element 6268857 or 4211235 ×1
  • Brick 2 x 2 Reddish Brown Part 3003 Element 4211210 ×2
  • Brick Arch 1 x 5 x 4 [Continuous Bow] Reddish Brown Part 2339 Element 4544167 or 4519927 ×2
  • Door Frame 2 x 8 x 6 Swivel without Bottom Notches Reddish Brown Part 40253 Element 4221597 ×1
  • Plate 2 x 3 Reddish Brown Part 3021 Element 4211189 ×1
  • Plate 2 x 6 Reddish Brown Part 3795 Element 4211247 ×2
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×1

White 10 pieces

  • Animal / Creature Accessory, Horse Battle Helmet [Winged, One Clip] White Part 6125 Element 4221593 ×2
  • Minifig Head Skeleton, Evil Skull Print White Part 3626bpr0190 Element 4162427 ×3
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] White Part 6019 Element 601951 or 601901 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] White Part 2540 Element 4140583 or 254051 ×2
  • Tile 1 x 1 with Blue Book Print White Part 3070bpr0043 Element 4129910 1 spare in the box ×1

Trans-Neon Orange 3 pieces

  • Minifig Head [Plain] [Blocked Open Stud] Trans-Neon Orange Part 3626b Element 4551255 or 4107160 ×1
  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×2

Trans-Clear 2 pieces

  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×1

Trans-Dark Blue 2 pieces

  • Cone 1 x 1 [No Top Groove] Trans-Dark Blue Part 4589 Element 618843 ×1
  • Tile 1 x 2 with Gold Stars Print Trans-Dark Blue Part 3069bpr0118 Element 4129911 ×1

Trans-Neon Green 2 pieces

  • Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud Trans-Neon Green Part 30151a Element 4506533 or 4144475 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Green Part 6141 Element 6240223 or 3005749 1 spare in the box ×1

Trans-Red 2 pieces

  • Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×1
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×1

Blue 1 piece

  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 1 spare in the box ×1

Dark Nougat 1 piece

  • Bar 4L (Lightsaber Blade / Wand) Dark Nougat Part 30374 Element 4159161 ×1

Orange 1 piece

  • Insect, Spider Orange Part 30238 Element 4163673 ×1

Red 1 piece

  • Book 2 x 3 with Mushrooms and Vine Print Red Part 33009pr0007 Element 4157048 ×1

Trans-Green 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×1

Trans-Purple 1 piece

  • Brick 1 x 1 Trans-Purple Part 3005 Element 6240552 or 6066120 ×1

Trans-Yellow 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×1

Yellow 1 piece

  • Dish 2 x 2 Inverted [Radar] Yellow Part 4740 Element 4169960 or 4107622 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 4752-1 [No Color/Any Color] Part 49184 Element 4222720 ×1

Minifigures 3 figures

  • Professor Snape Boggart, Black Hair Minifigure, checked as a whole figure ×1
  • Neville Longbottom, Gryffindor Sweater, Cape Minifigure, checked as a whole figure ×1
  • Remus Lupin, Dark Green Suit 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.