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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.

Fish Tank Filter & Fish Food

Checking

5009823 Fish Tank Filter & Fish Food

177 pieces in 48 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.

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Piece checklist

Plates 64 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 ×9
  • Plate 1 x 4 Black Part 3710 Element 371026 ×14
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×2
  • Plate 1 x 2 Dark Orange Part 3023 Element 4570877 or 4162217 ×1
  • Plate 1 x 4 Medium Azure Part 3710 Element 6603965 or 6070757 ×15
  • Plate 2 x 3 Medium Azure Part 3021 Element 6604733 or 6013828 ×2
  • Plate 4 x 8 Medium Azure Part 3035 Element 6104130 ×2
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×12

Bricks 52 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 4 Black Part 3010 Element 301026 ×6
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×1
  • Brick 1 x 1 Medium Azure Part 3005 Element 6603285 or 4619652 ×5
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 1 x 2 without Bottom Tube Trans-Light Blue Part 3065 Element 6514268 or 6244910 ×33
  • Brick 1 x 4 x 3 White Part 49311 Element 6552177 or 6256922 ×1
  • Brick 1 x 4 x 3 with Red Fish, Orange Plates Print White Part 49311pr0018 Element 6602691 ×1

Tiles 13 pieces

  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×7
  • Tile 2 x 6 Black Part 69729 Element 6318582 ×4
  • Tile 2 x 3 Medium Azure Part 26603 Element 6233166 ×2

Plates Special 12 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×8
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×2
  • Bracket 1 x 1 - 1 x 1 Inverted Red Part 36840 Element 6249907 ×1
  • Bracket 1 x 1 - 1 x 1 White Part 36841 Element 6548291 or 6296132 ×1

Bricks Curved 8 pieces

  • Brick Arch 1 x 4 Black Part 3659 Element 365926 ×1
  • Brick Curved 2 x 1 with Inverted Cutout Black Part 78666 Element 6369578 ×2
  • Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes Black Part 88930 Element 4587844 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×3

Bricks Round and Cones 7 pieces

  • Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [SHORT] Black Part 65473 Element 6305216 ×2
  • Brick Round 2 x 2 [Grill] Black Part 92947 Element 6024730 ×2
  • Brick Round 2 x 2 with Axle Hole Trans-Clear Part 3941 Element 6514281 or 6273152 ×1
  • Brick Round 2 x 2 with Axle Hole Trans-Light Blue Part 3941 Element 6514282 or 6273153 ×2

Panels 5 pieces

  • Panel 1 x 4 x 3 [Side Supports / Hollow Studs] Trans-Light Blue Part 60581 Element 6514155 or 6245267 ×4
  • Panel 3 x 4 x 6 Curved Top Trans-Light Blue Part 2571 Element 6510165 or 6244794 ×1

Bricks Sloped 4 pieces

  • Brick Sloped Inverted 45° 2 x 1 Medium Azure Part 3665 Element 6070769 or 6052795 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×3

Bricks Special 3 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Dark Red Part 87087 Element 6212007 or 4651677 ×1
  • Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×1

Technic Axles 3 pieces

  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×2

Tiles Round and Curved 3 pieces

  • Tile Round 2 x 2 with Bottom Stud Holder Black Part 14769 Element 6070695 ×1
  • Tile Round 1 x 1 with Offset Black Eye Print White Part 98138pr0008 Element 6284599 or 6029156 1 spare in the box ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin Dark Bluish Gray Part 32064a Element 6178919 or 4210935 ×1
  • Technic Brick 1 x 1 with Pin Hole White Part 6541 Element 6609542 or 654101 ×1

Tiles Special 1 piece

  • Tile Special 2 x 2 with Top Pin [Squared Holes] Red Part 49153 Element 6313190 ×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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