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.

Gyrocopter

Checking

412503 Gyrocopter

63 pieces in 25 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

Technic Pins 20 pieces

  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 ×8
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×1
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole] Flat Silver Part 65304 Element 6287673 ×4
  • Technic Pin 3/4 Tan Part 32002 Element 6663097 or 6013938 ×3

Technic Bushes 11 pieces

  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 ×11

Technic Connectors 7 pieces

  • Technic Pin Connector Perpendicular Long Black Part 32557 Element 4143466 ×1
  • Technic Pin Connector Toggle Joint Smooth Double with 2 Pins [Square Holes] Black Part 65746 Element 6328175 ×2
  • Technic Axle and Pin Connector Angled #1 Blue Part 32013 Element 6332570 or 4107797 ×2
  • Technic Pin Connector Hub with 2 Axles Dark Bluish Gray Part 27940 Element 6167281 ×1
  • Technic Axle Connector 2 x 3 Quadruple Pearl Titanium Part 11272 Element 6251539 or 6022718 ×1

Technic Beams 5 pieces

  • Technic Beam 1 x 3 Thin Blue Part 6632 Element 6344176 or 4107829 ×2
  • Technic Beam 1 x 5 Thick Dark Bluish Gray Part 32316 Element 32316199 or 4210686 ×1
  • Technic Connector Beam 3 x 3 White Part 39793 Element 6247424 ×2

Technic Axles 4 pieces

  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×3
  • Technic Axle 6 Red Part 3706 Element 6130002 or 4191526 ×1

Technic Gears 4 pieces

  • Technic Gear 12 Tooth Bevel Tan Part 6589 Element 4565452 or 4514556 ×4

Technic Special 4 pieces

  • Technic Rotor Blade Small with Hole and Axle Connector End Dark Bluish Gray Part 99012 Element 6271639 or 4651820 ×2
  • Technic Tooth 1 x 3 with Axle Hole [Hollow Underside] White Part 48267 Element 6288218 ×2

Technic Beams Special 2 pieces

  • Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole] Dark Bluish Gray Part 3167 Element 6475314 ×2

Tubes and Hoses 2 pieces

  • Axle Hose, Soft 7L White Part 32580 Element 6212046 ×2

Wheels and Tyres 2 pieces

  • Tyre 14 x 4 Smooth Small Single [New Style] Black Part 59895 Element 4516843 or 4507700 ×2

Large Buildable Figures 1 piece

  • Large Figure Wing, Small Blue Part 61800 Element 6529490 ×1

Transportation - Sea and Air 1 piece

  • Propeller 3 Blades 5 Diameter, Pin Hole Black Part 92842 Element 6360206 or 4599984 ×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.