The Workshop Sheet 10 of 22

LEGO Missing Piece Checker

Enter a set number, mark each piece found or missing, and leave with a list of what is missing, the element IDs LEGO asks for and links to buy the parts. It is free and needs no account. Rule out the usual hiding places first.

Choo Choo Train

Checking

2452 Choo Choo Train

13 pieces in 12 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

Blue 6 pieces

  • Duplo Brick 1 x 2 x 2 Blue Part 4066 Element 4519303 or 4162459 ×1
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×1
  • Duplo Brick 2 x 3 with Curved Top Blue Part 2302 Element 230273 or 230223 ×1
  • Duplo Car Base 2 x 6 with Yellow Wheels and Open Hitch End Blue Part 2312c01 Element 6006228 or 4592300 ×1
  • Duplo Train Steam Engine Cow Catcher Blue Part 4550 Element 455023 ×1
  • Duplo Train Steam Engine Funnel Top, Yellow Top Blue Part 4570c02 ×1

Red 4 pieces

  • Duplo Brick 1 x 2 x 2 with Suitcases, Yellow and Light Gray Print Red Part 4066pr0076 ×1
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×2
  • Duplo Car Base 2 x 6 with Yellow Wheels and Open Hitch End Red Part 2312c01 Element 6006223 or 4592299 ×1

Yellow 2 pieces

  • Duplo 2 x 2 x 2 Figure Brick, Rounded Bangs, White Head, Red Hair, Red Collar and Heart Buttons, Freckles Print Yellow Part 2327c02pr0004 ×1
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×1

Black 1 piece

  • Duplo 2 x 2 x 2 Figure Brick, Spiky Bangs, White Head, Light Gray Hair, Two White Buttons, Moustache Print Black Part 2327c01pr0015 ×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.