BlockTalk Find Your Set

The Workshop Sheet 10 of 19

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.

Basic Set (Town)

Checking

2399 Basic Set (Town)

68 pieces in 30 part and color combinations.

LEGO counts 63 pieces. This inventory comes from a separate parts catalog and lists 68; the two do not always count the same elements, so their totals differ. 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

Duplo, Quatro and Primo 64 pieces

  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×4
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×4
  • Duplo Door / Window Frame Flat Front Surface Blue Part 4253 ×1
  • Duplo Brick 2 x 2 Green Part 3437 Element 6528078 or 4583552 ×3
  • Duplo Brick 2 x 4 Green Part 3011 Element 4290071 or 301128 ×5
  • Duplo Brick 2 x 4 x 2 Rounded Ends Green Part 4198 Element 4198456 or 644828 ×1
  • Duplo Brick 2 x 8 Green Part 4199 Element 4291886 or 419928 ×1
  • Duplo Plate 6 x 12 Green Part 4196 Element 419628 ×1
  • Duplo Brick 1 x 2 x 2 with 4 Eggs Print Red Part 4066pr0052 ×1
  • Duplo Brick 1 x 2 x 2 with Carton and Bottle Print Red Part 4066pr0138 ×1
  • Duplo Brick 1 x 2 x 2 with Three Loaves of Bread Print, Middle Dark Red Part 4066pr0116 ×1
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×10
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×5
  • Duplo Car Base 2 x 6 with Yellow Wheels and Open Hitch End Red Part 2312c01 Element 6006223 or 4592299 ×1
  • Duplo Door / Window Red Part 4247 Element 424721 ×2
  • Duplo Door / Window Frame Flat Front Surface Red Part 4253 ×1
  • Duplo Door / Window with Porthole Red Part 4248 Element 4143624 or 424821 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×8
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×5
  • Duplo Brick 2 x 6 x 2, Curved Ends Yellow Part 4197 Element 4581346 or 419724 ×1
  • Duplo Brick 2 x 8 Yellow Part 4199 Element 4291883 or 419924 ×1
  • Duplo Car Base 2 x 6 with Open Hitch End and Red Wheels Yellow Part 2312c02 Element 6006222 or 4592297 ×1
  • Duplo Door / Window Yellow Part 4247 Element 424724 ×1
  • Duplo Door / Window Frame Flat Front Surface Yellow Part 4253 ×2
  • Duplo Plate 4 x 8 Yellow Part 4672 Element 6465940 or 6278979 ×1
  • Duplo Wagon Body with Sides Yellow Part 3982 ×1

Non-Buildable Figures (Duplo, Fabuland, etc) 4 pieces

  • Duplo 2 x 2 x 2 Figure Brick Early, Cowboy Hat Fabuland Brown, Looking Left Print Black Part dupfig0005pr0001 ×1
  • Duplo 2 x 2 x 2 Figure Brick Early, Dog, White Head, Looking Right Print Black Part dupfig0001pr0002 ×1
  • Duplo 2 x 2 x 2 Figure Brick Early, Long Swept Hair Brown, Eyelashes Print Green Part dupfig0011pr0002 ×1
  • Duplo 2 x 2 x 2 Figure Brick Early, Straight Hair Yellow, Nose Freckles Print Red Part dupfig0012pr0002 ×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.

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