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.

Flying Duck

Checking

1824 Flying Duck

13 pieces in 11 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. 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

Bricks 5 pieces

  • Brick 2 x 3 Blue Part 3002 Element 300223 ×1
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×1
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 2 x 2 with Eye with White Print on Two Sides, Offset Yellow Part 3003pr0053 Element 81910 ×1

Bricks Sloped 3 pieces

  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Blue Part 3747a Element 4500460 or 374723 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×1

Bars, Ladders and Fences 1 piece

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×1

Bricks Curved 1 piece

  • Brick Curved 2 x 3 Green Part 6215 Element 621528 ×1

Bricks Special 1 piece

  • Brick Special 2 x 2 with Pin and No Axle Hole Blue Part 4730 Element 473023 ×1

Plates 1 piece

  • Plate 2 x 6 Red Part 3795 Element 379521 ×1

Transportation - Sea and Air 1 piece

  • Propeller 2 Blade Twisted Yellow Part 4745 Element 474524 ×1

Minifigures 1 figure

  • Man - Green Torso, Red Legs, Red Cap 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.