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.

Steam Locomotive (Push)

Checking

126 Steam Locomotive (Push)

60 pieces in 20 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 49 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×8
  • Brick 1 x 2 Black Part 3004 Element 300426 ×6
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 4 with Gold '126' Print Black Part 3010pr9958 ×2
  • Brick 1 x 6 Black Part 3009 Element 300926 ×6
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×4
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×8
  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×2
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×4
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate 6 x 16 Black Part 3027 Element 302726 ×1

Red 8 pieces

  • Plate Special 2 x 4 with Train Coupler Open with Magnet Long Cylinder Blue Red Part 160ac02 ×1
  • Plate Special 2 x 4 with Train Coupler Open with Magnet Long Cylinder Red Red Part 160ac01 ×1
  • Train Wheel Spoked for Motor Red Part upn0383a ×4
  • Window 1 x 1 x 1 Classic with Short Sill [Complete] Red Part 3087cc01 ×2

Trans-Clear 2 pieces

  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 ×2

Yellow 1 piece

  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×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.