BlockTalk Find Your Set

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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.

Battery Train

Checking

9166 Battery Train

67 pieces in 40 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.

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Piece checklist

Duplo, Quatro and Primo 62 pieces

  • Duplo Suitcase Blue Part 6427 Element 4100726 or 642723 ×3
  • Duplo Support / Column 2 x 8 x 6 Blue Part 73352 Element 4528925 or 4528920 ×2
  • Duplo Train Base 2 x 8 with Red Wheels and Moveable Hook Blue Part 75175c01 Element 75175 ×1
  • Duplo Train Chassis 2 x 6 with Red Train Wheels and Moveable Hook Blue Part 4559c01 Element 4263156 or 73357 ×1
  • Duplo Train Track 4 x 8 Curved [Short] Dark Gray Part 6378 Element 637827 ×12
  • Duplo Train Track 4 x 8 Straight Dark Gray Part 6377 Element 637727 ×4
  • Duplo Train Track Start / Stop Dark Gray Part 74941c01 Element 74941 ×1
  • Duplo Train Track with Ramps For Car Crossing Dark Gray Part 6391 Element 639127 ×1
  • Duplo Brick 2 x 2 Green Part 3437 Element 6528078 or 4583552 ×1
  • Duplo Brick 2 x 4 Green Part 3011 Element 4290071 or 301128 ×2
  • Duplo Plate 4 x 8 Green Part 4672 Element 4279291 or 467228 ×1
  • Duplo Train Cabin End with Yellow Top Green Part 6409c01 ×1
  • Duplo Train Locomotive Base with Battery Compartment, Light Gray Base and Blue Wheels Green Part 2961bc02 ×1
  • Duplo Wagon Body Large Side Hatch Green Part 6441 ×2
  • Duplo Wagon Body Large with 2 x 6 Studs and Open Sides Green Part 6440 ×1
  • Duplo Brick 1 x 4 x 3 with Movable Red Hands and Yellow Clock Face Print Red Part 4145c01pr0001 Element 4129962 ×1
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×2
  • Duplo Car with 2 x 2 Studs and Yellow Base and Hubs Red Part 2218c01 Element 74446 ×1
  • Duplo Intelli-Train Smart Brick with Yellow Arrow Print Red Part 81917pr0001 Element 81917 ×2
  • Duplo Plate 4 x 8 Red Part 4672 Element 4583743 or 4129965 ×1
  • Duplo Train Crossing Gate / Barrier, with Large Handle and White Stripes Red Part 6406a ×2
  • Duplo Train Locomotive Cabin Base with Green Stripe Red Part 6407pr0001 ×1
  • Duplo Train Steam Engine Cabin, Small Front Windows Red Part 4544 Element 454421 ×2
  • Duplo Winch Drum, Yellow Hook Short with Cross Bar, String Red Part 4653c02 Element 73440 ×1
  • Duplo Backhoe / Train Cabin Roof Yellow Part 4543 Element 6258169 or 4205309 ×2
  • Duplo Brick 1 x 2 x 2 with Oil Drum / Can Print Yellow Part 4066pr0111 Element 4120081 ×2
  • Duplo Brick 1 x 2 x 2 with Small Dark Gray Mail Bag Print Yellow Part 4066pr0065 ×1
  • Duplo Brick 1 x 2 x 2 with Telephone Print 1, Red Yellow Part 4066pr0158 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×2
  • Duplo Brick 2 x 2 x 2 with 1 x 2 Center with Red Straight Arrow Print (Train Track Switching Control) Yellow Part 6442pr0002 Element 81862 ×1
  • Duplo Brick 2 x 4 Yellow Part 3011 Element 4290060 or 301124 ×1
  • Duplo Chair 2 x 2 x 2 with One Stud Yellow Part 4839 ×1
  • Duplo Train Crossing Barrier / Gate Base Yellow Part 6405 Element 640524 ×2
  • Duplo Train Locomotive Cabin Roof 2 x 3 Studs on Top Yellow Part 6408 Element 640824 ×1
  • Duplo Winch Stand Yellow Part 4654 Element 465424 ×1

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

  • Duplo Figure, Early, with Flat Cap Brown, Blue Legs, Plain Top Blue Part 74432pr0001 ×1
  • Duplo Figure, Early, Hair Bob Black, Blue Legs, White Bead Necklace Print Red Part 74298pr0045 ×1
  • Duplo Figure, Early, with Flat Cap Red, Black Legs, 2 Yellow Buttons, White Eyes Print Red Part 74432pr0060 ×1
  • Duplo Figure, Early, Hair Bob Brown, Red Legs, Red Buttons and Gray Wrench, Turned Down Nose Print Yellow Part 74298pr0047 ×1

Gear Parts 1 piece

  • Storage Bin, Dacta 16" x 12.5" x 4.5" Red Part upn0044 ×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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