Free tool

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.

Build Valentine's Day Fun

Checking

5009388 Build Valentine's Day Fun

52 pieces in 30 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

Bricks Sloped 10 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 ×4
  • Brick Sloped Inverted 45° 2 x 1 Red Part 3665 Element 366521 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Reddish Brown Part 54200 Element 4504376 or 4260486 ×2
  • Brick Sloped Inverted 45° 2 x 1 Reddish Brown Part 3665 Element 4211222 ×2

Bricks Curved 7 pieces

  • Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs Medium Nougat Part 49307 Element 6296061 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Reddish Brown Part 6091 Element 6335567 or 6035547 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Reddish Brown Part 11477 Element 6069984 ×2
  • Brick Arch 1 x 3 Tan Part 4490 Element 4618651 or 4519915 ×1

Plates 7 pieces

  • Plate 1 x 4 Green Part 3710 Element 371028 ×1
  • Plate 1 x 2 Medium Nougat Part 3023 Element 6218360 or 4645055 ×1
  • Plate 1 x 4 Medium Nougat Part 3710 Element 6167700 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 ×1

Plates Round Curved and Dishes 7 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×1
  • Plate Round 1 x 1 with Open Stud Reddish Brown Part 85861 Element 6215659 ×4
  • Plate Round 1 x 1 with Solid Stud Tan Part 6141 Element 4161734 or 614105 ×2

Plates Special 7 pieces

  • Plate Special 1 x 2 with Handles on Ends Black Part 18649 Element 6099483 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Reddish Brown Part 15573 Element 6092590 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Reddish Brown Part 18674 Element 6102360 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Tan Part 61252 Element 6347292 or 4520947 ×3
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) Tan Part 34103 Element 6211966 ×1

Tiles Round and Curved 6 pieces

  • Tile 1 x 1 Heart Dark Pink Part 39739 Element 6486304 or 6256130 ×2
  • Tile Round 1 x 1 with Black Eye with Off-Side Pupil Partially Closed Print White Part 98138pr0027 Element 6284605 or 6099548 ×2
  • Tile Round 1 x 1 with Offset Black Eye Print White Part 98138pr0008 Element 6284599 or 6029156 ×2

Bricks 4 pieces

  • Brick 1 x 1 Medium Nougat Part 3005 Element 6057986 or 4569624 ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×2

Bricks Special 4 pieces

  • Brick Special 1 x 2 with 2 Studs on 1 Side Red Part 11211 Element 6019155 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Tan Part 87087 Element 4579260 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side Tan Part 11211 Element 6024495 ×2

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.