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.

Boat

Checking

2025 Boat

12 pieces in 8 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

Bricks Sloped 4 pieces

  • Brick Sloped 33° 3 x 2 Smooth with McDonald's Fry Girl Print Red Part 30474pr0004 ×1
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Red Part 3747a Element 374721 ×3

Plates 4 pieces

  • Plate 2 x 6 Blue Part 3795 Element 379523 ×3
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×1

Bricks 2 pieces

  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×1
  • Brick 2 x 4 Red Part 3001 Element 300121 ×1

Bricks Special 1 piece

  • Brick Special 2 x 2 with Pin and Axle Hole Yellow Part 6232 Element 6347698 or 623224 ×1

Transportation - Sea and Air 1 piece

  • Propeller 4 Blade 5 Diameter with Rounded Ends, Open Hub Black Part 2479 Element 247926 ×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.