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

5049 Transparent Windows and Bricks

8 pieces in 6 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

Black 2 pieces

  • Hinge Vehicle Roof Holder 1 x 4 Black Part 4315 Element 4250225 or 431576 ×2

Trans-Light Blue 2 pieces

  • Windscreen 4 x 4 x 3 Canopy Trans-Light Blue Part 2620 Element 4258357 or 262042 ×1
  • Windscreen 4 x 4 x 4 1/3 Helicopter Trans-Light Blue Part 2483 Element 4188185 or 248342 ×1

Trans-Neon Orange 2 pieces

  • Windscreen 10 x 4 x 2 1/3 Canopy Trans-Neon Orange Part 2507 Element 250797 or 250747 ×1
  • Windscreen 4 x 4 x 4 1/3 Helicopter Trans-Neon Orange Part 2483 Element 4109692 or 248347 ×1

White 2 pieces

  • Hinge Vehicle Roof Holder 1 x 4 White Part 4315 Element 4214079 or 4190507 ×2

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.