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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.

Dobby the House-Elf

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76421 Dobby the House-Elf

403 pieces in 109 part and color combinations.

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.

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.

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Piece checklist

Light Nougat 121 pieces

  • Animal / Creature Body Part, Claw with Clip Light Nougat Part 3171 Element 6433907 ×8
  • Bracket 1 x 1 - 1 x 2 Inverted Light Nougat Part 73825 Element 6440976 ×6
  • Brick 1 x 1 Light Nougat Part 3005 Element 6369191 or 4496977 ×3
  • Brick 1 x 2 Light Nougat Part 3004 Element 6369189 or 4623890 ×4
  • Brick 1 x 8 Light Nougat Part 3008 Element 6440963 or 4496979 ×2
  • Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs Light Nougat Part 49307 Element 6440960 ×7
  • Brick Curved 1 x 2 x 1 No Studs Light Nougat Part 37352 Element 6357793 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Nougat Part 11477 Element 6357796 ×6
  • Brick Curved 3 x 1 No Studs Light Nougat Part 50950 Element 6357800 ×2
  • Brick Curved 4 x 1 Double, No Studs Light Nougat Part 93273 Element 6357798 ×4
  • Brick Curved, 3 x 1 with 1/3 Inverted Cutout Light Nougat Part 70681 Element 6369190 ×1
  • Brick Round 3 x 4 x 2/3 Triple Curved with 2 Sunk Studs with Black Mouth Print Light Nougat Part 93604pr0014 Element 6445145 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Nougat Part 54200 Element 6357792 1 spare in the box ×2
  • Brick Sloped Inverted 45° 2 x 1 Light Nougat Part 3665 Element 6440961 ×6
  • Plate 1 x 1 Light Nougat Part 3024 Element 6357797 or 4496989 1 spare in the box ×4
  • Plate 1 x 2 Light Nougat Part 3023 Element 6369188 or 4496988 ×11
  • Plate 1 x 4 Light Nougat Part 3710 Element 6440965 or 4496993 ×7
  • Plate 2 x 3 Light Nougat Part 3021 Element 6357789 or 4496986 ×5
  • Plate Round Corner 3 x 3 with 2 x 2 Round Cutout Light Nougat Part 68568 Element 6443331 ×4
  • Plate Special 1 x 2 [Side Handle Closed Ends] Light Nougat Part 48336 Element 6440975 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Nougat Part 15573 Element 6329282 ×13
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Nougat Part 11476 Element 6343511 ×4
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Nougat Part 60478 Element 6440968 ×4
  • Technic Beam 1 x 2 with Ball Joint Holes in Ball Light Nougat Part 67697 Element 6433901 ×1
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes Light Nougat Part 67696 Element 6433890 ×1
  • Tile 1 x 4 with Groove Light Nougat Part 2431 Element 6424071 ×2
  • Tile Round 1 x 1 Light Nougat Part 98138 Element 6315196 or 6056616 1 spare in the box ×2
  • Tile Round 1 x 1 Quarter Light Nougat Part 25269 Element 6275872 1 spare in the box ×4
  • Vehicle Body, Wheel Arch / Mudguard 3 x 4 x 1 2/3 Low Profile, Curved Front Light Nougat Part 98835 Element 6329296 ×2

Black 52 pieces

  • Brick 2 x 4 Black Part 3001 Element 300126 ×5
  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Black Part 88930 Element 4587844 ×1
  • Brick Round Corner 4 x 4 Full Brick Black Part 2577 Element 6188426 or 6078094 ×4
  • Brick Special 1 x 2 with 2 Studs on 1 Side Black Part 11211 Element 6138173 ×6
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 Also in Dark Bluish Gray ×1
  • Plate Round Corner 3 x 3 with 2 x 2 Round Cutout Black Part 68568 Element 6325190 ×2
  • Plate Round Corner 5 x 5 with 4 x 4 Round Cutout Black Part 80015 Element 6372045 ×8
  • Plate Special 1 x 2 with Handles on Ends Black Part 18649 Element 6099483 ×6
  • Plate Special 1 x 3 Rounded with 3 Open Studs Black Part 77850 Element 6428168 ×1
  • Plate Special 4 x 4 with Studs on Edges and Clips Horizontal Black Part 66252 Element 6310190 ×2
  • Plate Special 4 x 6, Studs on 3 Edges Black Part 6180 Element 4100378 or 618026 ×1
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×4
  • Tile 2 x 6 Black Part 69729 Element 6318582 ×1
  • Tile Special Round 1 x 1 with Hollow Bar Black Part 20482 Element 6186675 or 6167933 1 spare in the box ×4

Lavender 43 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Lavender Part 24866 Element 6214235 1 spare in the box ×42
  • Tile Round 2 x 2 with Bottom Stud Holder Lavender Part 14769 Element 6430541 ×1

White 30 pieces

  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1
  • Brick Round, Half 1 x 2 White Part 68013 Element 6615561 or 6382983 ×4
  • Brick Wedged 2 x 2 Facet White Part 87620 Element 6601848 or 6137926 ×4
  • Plate 4 x 6 White Part 3032 Element 303201 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] White Part 2654 Element 6601843 or 6552259 ×2
  • Plate Round 2 x 2 with Rounded Bottom with Eye, Lime/Green Iris Print White Part 2654pr0027 Element 6445144 ×2
  • Plate Round 6 x 6 with Hole White Part 11213 Element 6601923 or 6109817 ×3
  • Plate Round Half 4 x 8 White Part 22888 Element 6138699 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs White Part 35480 Element 6552167 or 6550175 ×8
  • Tile Round 1 x 2 Half Circle White Part 1748 Element 6510068 or 6400114 1 spare in the box ×2

Dark Tan 28 pieces

  • Bracket 1 x 2 - 1 x 2 Dark Tan Part 99781 Element 6328477 ×1
  • Brick Curved 2 x 2 x 2/3 Dark Tan Part 15068 Element 6093038 ×6
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Dark Tan Part 29120 Element 6258951 ×3
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Dark Tan Part 29119 Element 6258949 ×3
  • Plate 2 x 6 Dark Tan Part 3795 Element 4550329 ×2
  • Plate 6 x 8 Dark Tan Part 3036 Element 4251796 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Tan Part 35480 Element 6231386 ×1
  • Tile 1 x 2 with Groove Dark Tan Part 3069b Element 4496699 ×2
  • Tile Special 2 x 2 Inverted Dark Tan Part 11203 Element 6406008 ×6
  • Wedge Plate 4 x 2 Left Dark Tan Part 41770 Element 6338985 or 4583977 ×1
  • Wedge Plate 4 x 2 Right Dark Tan Part 41769 Element 6328445 or 4583978 ×1

Light Bluish Gray 27 pieces

  • Bracket 1 x 1 - 1 x 2 Light Bluish Gray Part 79389 Element 6362975 ×2
  • Bracket 2 x 2 with 1 x 2 Vertical Studs Light Bluish Gray Part 41682 Element 6258820 ×1
  • Plate 6 x 6 Light Bluish Gray Part 3958 Element 4211474 ×1
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×2
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×2
  • Tile 2 x 2 Curved, Macaroni Light Bluish Gray Part 27925 Element 6163990 ×4
  • Tile 2 x 3 Light Bluish Gray Part 26603 Element 6171894 ×3
  • Tile 3 x 3 Curved, Macaroni Light Bluish Gray Part 79393 Element 6385740 ×4
  • Tile Round 1 x 1 Quarter Light Bluish Gray Part 25269 Element 6176433 1 spare in the box ×8

Tan 27 pieces

  • Bracket 1 x 1 - 1 x 1 Inverted Tan Part 36840 Element 6365720 ×2
  • Bracket 1 x 2 - 2 x 2 Tan Part 44728 Element 6117975 or 6048857 ×10
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×2
  • Plate 1 x 5 Tan Part 78329 Element 6351905 ×4
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×5
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×4

Red 22 pieces

  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×3
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 1 spare in the box ×16
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle Red Part 11214 Element 6209519 ×1

Yellowish Green 22 pieces

  • Plate Round 1 x 1 with Solid Stud Yellowish Green Part 6141 Element 6057898 1 spare in the box ×22

Dark Bluish Gray 12 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Dark Bluish Gray Part 85984 Element 4567887 ×1
  • Brick Special 1 x 2 with Grille Dark Bluish Gray Part 2877 Element 4210636 ×1
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Dark Bluish Gray Part 29120 Element 6204668 ×1
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Dark Bluish Gray Part 29119 Element 6204667 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 Also in Black ×2
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Dark Bluish Gray Part 3176 Element 4225733 ×1
  • Tile 2 x 2 Curved, Macaroni Dark Bluish Gray Part 27925 Element 6265306 ×1
  • Tile 2 x 3 Dark Bluish Gray Part 26603 Element 6187008 ×1
  • Tile 3 x 3 Curved, Macaroni Dark Bluish Gray Part 79393 Element 6393306 ×1

Bright Pink 5 pieces

  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×4
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Bright Pink Part 87580 Element 6251842 ×1

Pearl Gold 5 pieces

  • Tile 1 x 1 Heart Pearl Gold Part 39739 Element 6301811 1 spare in the box ×5

Medium Azure 3 pieces

  • Plate 2 x 3 Medium Azure Part 3021 Element 6604733 or 6013828 ×1
  • Technic Brick 1 x 1 with Pin Hole Medium Azure Part 6541 Element 6145253 ×2

Trans-Clear 3 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Clear Part 3941 Element 6514281 or 6273152 ×2
  • Dish 6 x 6 Inverted (Radar) with Solid Studs Trans-Clear Part 44375b Element 6507944 or 6220743 ×1

Reddish Brown 2 pieces

  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 76421-1 [No Color/Any Color] Part 10104435 Element 6445494 ×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.