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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.

Giant First Tools for Technology

Checking

9104 Giant First Tools for Technology

85 pieces in 39 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 79 pieces

  • Duplo Toolo Tool Screwdriver Black Part 74864 Element 4193245 or 4142580 ×4
  • Duplo Toolo Tool Wrench Black Part 74864c02 Element 4142581 or 75529 ×2
  • Duplo Toolo Tyre / Tire Black Part 6292 Element 6064175 or 4514411 ×10
  • Duplo Toolo Wheel with Connector Pin Black Part 6290 Element 4142501 or 4120376 ×10
  • Duplo Brick 2 x 2 Blue Part 3437 Element 343723 ×3
  • Duplo Brick 2 x 4 Blue Part 3011 Element 4290075 or 301123 ×1
  • Duplo Toolo Arm 2 x 11 with Triangular Set Screw End Blue Part 74844 Element 4142363 or 74844 ×5
  • Duplo Toolo Arm 2 x 12 with Triangular Set Screw at Both Ends and in the Middle Blue Part 6666c01 Element 4142373 ×1
  • Duplo Toolo Arm 2 x 6 with Triangular Screw at Both Ends Blue Part 6279 Element 4142370 ×5
  • Duplo Toolo Arm 2 x 6 with Triangular Set Screw and Clip Ends Blue Part 74847 Element 4142366 or 74847 ×3
  • Duplo Toolo Brick 2 x 2 with Angled Bracket with Forks and 2 Screws Blue Part 6284c01 Element 74852 ×2
  • Duplo Toolo Brick 2 x 8 with 10 Side Screw Sockets, Swivel Bracket End and Clip End Blue Part 74867 Element 4142371 ×1
  • Duplo Toolo Brick with Screw 2 x 2, with Angled Arm with Clip Blue Part 6285 Element 74854 ×2
  • Duplo Toolo Brick 2 x 8 with Curved Ends Green Part 6671c01 Element 4142158 or 4100617 ×2
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×1
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×2
  • Duplo Toolo Arm Turning with Clip End Red Part 6663c01 Element 4100690 ×2
  • Duplo Toolo Arm Turning with Set Screw End Red Part 6662c01 Element 4142378 or 4100689 ×2
  • Duplo Toolo Brick 2 x 2 with Angled Bracket with Forks and 2 Screws Red Part 6284c01 Element 4142374 or 4100619 ×2
  • Duplo Toolo Brick 2 x 2 with Holes and Clip on Bottom Red Part 74957 Element 75071 ×4
  • Duplo Toolo Brick 2 x 8 with 10 Side Screw Sockets, Swivel Bracket End and Clip End Red Part 74867 Element 75025 ×1
  • Duplo Toolo Cabin Bottom Red Part 6293 Element 629321 ×1
  • Duplo Toolo Propeller Small with Yellow Center Screw Red Part 6669c01 Element 4193719 or 4142498 ×1
  • Duplo Toolo Turntable 4 x 4 Base with Yellow Top Plate Red Part 86594 ×1
  • Duplo Toolo, Propeller, 3 Blades Red Part 86601 Element 4142499 ×1
  • Duplo Toolo Windscreen Trans-Light Blue Part 6672 Element 667242 ×1
  • Duplo Toolo Arm with Fake Pulley and Hook Yellow Part 6295 Element 629524 ×1
  • Duplo Toolo Brick 2 x 2 with Holes and Clip on Bottom Yellow Part 74957 Element 74957 ×3
  • Duplo Toolo Cabin Bottom Yellow Part 6293 Element 4100622 or 629324 ×1
  • Duplo Toolo Digger Bucket with 3 teeth Yellow Part 6310 Element 631024 ×1
  • Duplo Toolo Plate 4 x 12 Yellow Part 6668 Element 666824 ×1
  • Duplo Toolo Scoop 6 x 4 x 3 Yellow Part 6294 Element 629424 ×1
  • Duplo Toolo Tipper Bucket Yellow Part 6311 Element 4177718 ×1

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

  • Duplo Figure, Early, Hard Hat White, Blue Legs, with Blue Overalls, Turned Up Nose Print Red Part 74506pr0041 ×1
  • Duplo Figure, Early, Aviator Hat Blue, White Legs, Black Zipper and Racer #2 Print White Part 74509pr0005 ×1
  • Duplo Figure, Early, Hair Bob Brown, Red Legs, Red Buttons and Gray Wrench, Turned Down Nose Print Yellow Part 74298pr0047 ×1
  • Duplo Figure, Early, Hard Hat White, Red Legs, Wrench in Pocket, Eyelashes Print Yellow Part 74506pr0004 ×1

Gear Parts 2 pieces

  • Storage Bin, Dacta, Large Red Part 71093 ×1
  • Storage Bin Lid Trans-Clear Part 71094 ×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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