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.

Express Train

Checking

2459 Express Train

26 pieces in 18 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

Red 11 pieces

  • Duplo 2 x 2 x 2 Figure Brick, Rounded Bangs, White Head, Yellow Hair, Yellow Bow, Freckles Print Red Part 2327c02pr0008 ×1
  • 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 Brick 2 x 3 with Curved Top Red Part 2302 Element 230271 or 230221 ×2
  • Duplo Brick 2 x 3 x 2 with Curve Red Part 2301 Element 230121 ×2
  • Duplo Car Base 2 x 6 with Yellow Wheels and Open Hitch End Red Part 2312c01 Element 6006223 or 4592299 ×2
  • Duplo Train Steam Engine Cabin, Small Front Windows Red Part 4544 Element 454421 ×1

Yellow 9 pieces

  • Duplo Backhoe / Train Cabin Roof Yellow Part 4543 Element 6258169 or 4205309 ×1
  • Duplo Brick 1 x 2 x 2 with Suitcases Red and Dark Gray Print Yellow Part 4066pr0062 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×4
  • Duplo Brick 2 x 4 x 2 Rounded Ends with Clock Print Yellow Part 4198pr9995 ×1
  • Duplo Door / Window Frame Flat Front Surface Yellow Part 4253 ×1
  • Duplo Train Steam Engine Cow Catcher Yellow Part 4550 Element 455024 ×1

Blue 4 pieces

  • Duplo Brick 2 x 10 Blue Part 2291 Element 4290196 or 4250489 ×1
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×2
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×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

Green 1 piece

  • Duplo 2 x 2 x 2 Figure Brick, Rounded Bangs, White Head, Light Gray Hair, Yellow Collar and Flower Print Green Part 2327c02pr0007 ×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.