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.

Transparent Windows and Bricks

Checking

5396 Transparent Windows and Bricks

8 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

Hinges, Arms and Turntables 4 pieces

  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Vehicle Roof Holder 1 x 4 Black Part 4315 Element 4250225 or 431576 ×1
  • Hinge Vehicle Roof Holder 1 x 4 Red Part 4315 Element 4179280 or 431521 ×1
  • Hinge Vehicle Roof Holder 1 x 4 White Part 4315 Element 4214079 or 4190507 ×1

Windscreens and Fuselage 4 pieces

  • Windscreen 10 x 4 x 2 1/3 Canopy Trans-Dark Blue Part 2507 Element 250793 or 250743 ×1
  • Windscreen 4 x 4 x 4 1/3 Helicopter Trans-Dark Blue Part 2483 Element 248343 ×1
  • Windscreen 6 x 4 x 2 Canopy Trans-Dark Blue Part 4474 Element 3006643 ×1
  • Windscreen 6 x 6 Octagonal Canopy with Axle hole Trans-Dark Blue Part 2418b Element 241843 ×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.