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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.

Secret Holder

Checking

41924 Secret Holder

453 pieces in 29 part and color combinations.

LEGO counts 451 pieces. This inventory comes from a separate parts catalog and lists 453; 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.

Show

Piece checklist

Blue 78 pieces

  • Brick Special 1 x 4 with 4 Studs on One Side Blue Part 30414 Element 4212411 or 4141768 ×12
  • Tile Round 1 x 1 Blue Part 98138 Element 6284575 or 6009460 ×2
  • Tile Round 1 x 1 Quarter Blue Part 25269 Element 6302961 ×64

Dark Azure 65 pieces

  • Tile Remover Key, Heart [DOTS] Dark Azure Part 69871 Element 6336582 ×1
  • Tile Round 1 x 1 Quarter Dark Azure Part 25269 Element 6199887 ×64

Bright Light Blue 64 pieces

  • Tile Round 1 x 1 Quarter Bright Light Blue Part 25269 Element 6316571 ×64

Magenta 64 pieces

  • Tile Round 1 x 1 Quarter Magenta Part 25269 Element 6199889 ×64

Medium Lavender 64 pieces

  • Tile Round 1 x 1 Quarter Medium Lavender Part 25269 Element 6199893 ×64

White 47 pieces

  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×24
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×8
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) White Part 18674 Element 6615555 or 6093053 ×2
  • Tile Round 1 x 1 Quarter White Part 25269 Element 6548285 or 6172366 ×12

Glitter Trans-Clear 30 pieces

  • Tile Round 1 x 1 Glitter Trans-Clear Part 98138 Element 6313555 ×30

Black 28 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick Arch 1 x 3 x 2 Curved Top Black Part 6005 Element 4618880 or 4188168 ×1
  • Brick Curved 1 x 3 x 2 Black Part 33243 Element 6616748 or 4582251 ×2
  • Panel 1 x 4 x 1 with Rounded Corners [Thin Wall] Black Part 15207 Element 6092570 ×1
  • Plate 6 x 6 Black Part 3958 Element 395826 ×4
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×7
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×4
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×2
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 ×1
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×4

Light Bluish Gray 8 pieces

  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×8

Dark Pink 3 pieces

  • Tile 1 x 1 Heart Dark Pink Part 39739 Element 6486304 or 6256130 ×2
  • Tile Round 1 x 1 Quarter Dark Pink Part 25269 Element 6240462 ×1

Medium Azure 1 piece

  • Sorting Tray, DOTS, 7 Compartment Medium Azure Part 901957 ×1

Trans-Clear 1 piece

  • Sorting Tray, DOTS, Lid Trans-Clear Part 901956 ×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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