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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.

Cat Bike

Checking

6527186 Cat Bike

47 pieces in 23 part and color combinations, plus 1 minifigure.

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 Special 14 pieces

  • Plate Special 1 x 1 with Tooth Blue Part 49668 Element 6123860 or 6102653 ×2
  • Bracket 1 x 1 - 1 x 1 Inverted Dark Blue Part 36840 Element 6462497 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Dark Blue Part 99207 Element 6554215 or 6224472 ×2
  • Plate Special 1 x 1 Rounded with Handle Dark Blue Part 26047 Element 6251253 ×3
  • Plate Special 1 x 2 with Clip Horizontal on End Light Bluish Gray Part 63868 Element 6319336 or 4535738 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Medium Azure Part 15573 Element 6603587 or 6331949 ×5

Bars, Ladders and Fences 8 pieces

  • Bar 3L Black Part 87994 Element 6185316 or 6093525 ×2
  • Bar 1 x 3 [Clip / Anti-Stud] Light Bluish Gray Part 4735 Element 4211644 ×4
  • Bar Holder with Clip Light Bluish Gray Part 11090 Element 6355025 ×2

Plates Round Curved and Dishes 6 pieces

  • Plate Round 1 x 1 with Solid Stud Medium Azure Part 6141 Element 6102986 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Medium Azure Part 4032a Element 6109752 ×4

Bricks Curved 5 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Blue Part 11477 Element 6554198 or 6094143 ×4
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Medium Azure Part 11477 Element 6603334 or 6071246 ×1

Bricks Special 5 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side Blue Part 11211 Element 6189191 ×2
  • Brick Special 1 x 1 with Studs on 2 Sides Dark Bluish Gray Part 47905 Element 4213574 ×2

Plates 4 pieces

  • Plate 1 x 2 Coral Part 3023 Element 6258094 ×2
  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 ×1
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 ×1

Energy Effects 2 pieces

  • Wave / Flame Rounded with Base Rim Trans-Light Blue Part 6126b Element 6167739 ×2

Tiles Round and Curved 2 pieces

  • Tile Round 1 x 1 Half Circle Coral Part 24246 Element 6475308 or 6341396 ×1
  • Tile Round 1 x 1 Half Circle Medium Azure Part 24246 Element 6375606 ×1

Bricks 1 piece

  • Brick 2 x 2 without Inside Ridges Trans-Clear Part 6223 Element 6514093 or 6239418 ×1

Minifigures 1 figure

  • Mateo, Puffer Vest, 2003pr0001 Hair 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.

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