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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.

Workshop Kit for Simple Machines

Checking

2000418 Workshop Kit for Simple Machines

35 pieces in 18 part and color combinations, plus 2 minifigures.

The official piece count includes the 8 parts inside the set's minifigures, which this inventory lists separately. 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.

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Piece checklist

Plates 10 pieces

  • Plate 2 x 2 Green Part 3022 Element 302228 ×1
  • Plate 2 x 4 Green Part 3020 Element 302028 ×3
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×6

Technic Bricks 5 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×3
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×2

Technic Gears 4 pieces

  • Technic Gear 8 Tooth [Reinforced] Dark Bluish Gray Part 10928 Element 6631413 or 6012451 1 spare in the box ×2
  • Technic Gear 24 Tooth Crown with Reinforcements [New Style] Light Bluish Gray Part 3650c Element 4211434 ×1
  • Technic Gear 40 Tooth Light Bluish Gray Part 3649 Element 6195314 or 4285634 ×1

Technic Axles 3 pieces

  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×2

Bricks 2 pieces

  • Brick 2 x 4 Red Part 3001 Element 300121 ×2

Plates Special 2 pieces

  • Technic Plate 2 x 6 [5 Holes] White Part 32001 Element 6552133 or 4527947 ×2

Technic Bushes 2 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×2

Technic Pins 2 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×2

Tiles 2 pieces

  • Tile 1 x 4 with Groove Yellow Part 2431 Element 243124 ×2

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×1

Technic Beams Special 1 piece

  • Technic Beam 3 x 0.5 Liftarm with Boss and Pin / Crank Light Bluish Gray Part 33299a Element 4211688 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Round [Slotted] Yellow Part 62462 Element 6173122 or 4526983 ×1

Minifigures 2 figures

  • White Torso, Red Legs, Orange Cap Minifigure, checked as a whole figure ×1
  • Orange Torso, Red Legs, Dark Brown Hair Minifigure, checked as a whole figure ×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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