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.

Robby Rabbit and Accordion

Checking

3712 Robby Rabbit and Accordion

5 pieces in 5 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.

Show

Piece checklist

Belville, Scala and Fabuland 1 piece

  • Fabuland, Musical Instrument Accordion Blue Part 4335 Element 4143638 ×1

Bricks 1 piece

  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×1

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×1

Minifig Accessories 1 piece

  • Equipment Signal Paddle Red Part 3900 Element 390021 ×1

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

  • Fabuland Figure Bunny 2 Red Part fabfig0003c02pr0001 ×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.