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.

Clive Crocodile on Skateboard

Checking

3721 Clive Crocodile on Skateboard

13 pieces in 6 part and color combinations.

LEGO counts 10 pieces. This inventory comes from a separate parts catalog and lists 13; 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

Belville, Scala and Fabuland 3 pieces

  • Belville / Fabuland Skateboard Red Part 2146 ×1
  • Belville / Fabuland Wheels with Red Axle Yellow Part 2147c01 ×2

Bricks Round and Cones 3 pieces

  • Cone 2 x 2 x 2, Open Stud Yellow Part 3942c Element 6055404 or 6022159 ×3

Flags, Banners and Signs 3 pieces

  • Flag 4 x 1 Wavy [First Wave Left] Red Part 4495a ×3

Plates 3 pieces

  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3

Non-Buildable Figures (Duplo, Fabuland, etc) 1 piece

  • Fabuland Figure Crocodile 2 Black Part fabfig0006c01pr0002 ×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.