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.

ADU Walker

Checking

30140 ADU Walker

29 pieces in 14 part and color combinations, plus 1 minifigure.

The piece count includes the 5 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

Blue 8 pieces

  • Brick Curved 2 x 2 x 2/3 Two Studs and Curved Slope End Blue Part 47457 Element 4496366 ×1
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Blue Part 61409 Element 4597338 ×2
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [Original Version] Blue Part 92946 Element 4620297 ×4
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×1

Dark Bluish Gray 6 pieces

  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×4
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Dark Bluish Gray Part 3839b Element 4263176 ×1

Light Bluish Gray 5 pieces

  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Light Bluish Gray Part 61252 Element 6335378 or 4541978 ×2
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×2

Trans-Neon Orange 4 pieces

  • Cone 1 x 1 [Top Groove] Trans-Neon Orange Part 59900 Element 6301326 or 6172239 ×4

Yellow 4 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Yellow Part 63868 Element 6347284 or 4535740 ×2

Black 2 pieces

  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Black Part 64644 Element 4538456 ×2

Minifigures 1 figure

  • ADU Soldier, Snarl / Surprised, Dark Bluish Gray Hips 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.