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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.

Race car

Checking

412403 Race car

81 pieces in 26 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 Connectors 21 pieces

  • Technic Axle and Pin Connector Perpendicular Triple Black Part 63869 Element 6362991 or 6007966 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Dark Bluish Gray Part 32184 Element 32184199 or 6276984 ×4
  • Technic Pin Connector Hub Perpendicular 3L with 2 Pins Light Bluish Gray Part 2393 Element 6408168 ×4
  • Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes] Light Bluish Gray Part 44874 Element 6321303 ×3
  • Technic Axle and Pin Connector Angled #1 Red Part 32013 Element 6332580 or 4254606 ×6
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Red Part 32184 Element 6276963 or 4128598 ×3

Technic Pins 14 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 ×4
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin without Friction Ridges Lengthwise Yellow Part 3673 Element 6331822 ×4

Technic Bushes 12 pieces

  • Technic Bush Red Part 3713 Element 6271820 or 4227155 ×8
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced White Part 32123b Element 6634562 or 6360263 ×4

Technic Axles 11 pieces

  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×2
  • Technic Axle 7 Light Bluish Gray Part 44294 Element 44294194 or 4211805 ×3
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×3
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×3

Technic Beams 10 pieces

  • Technic Beam 1 x 5 Thin with Axle Holes on Ends Black Part 11478 Element 6327028 or 6030286 ×1
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×4
  • Technic Beam 1 x 2 Thick Red Part 43857 Element 4185664 ×2
  • Technic Beam 2 x 4 L-Shape Thick Red Part 32140 Element 6271827 or 4141270 ×1
  • Technic Beam 1 x 2 Thin White Part 41677 Element 6371416 or 4163533 ×2

Wheels and Tyres 8 pieces

  • Tyre 24 x 12 Low Profile Black Part 18977 Element 6102596 ×4
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Black Part 55981 Element 6359824 or 6109682 ×4

Technic Special 2 pieces

  • Technic Tooth 1 x 3 with Axle Hole [Hollow Underside] Trans-Clear Part 48267 Element 6514319 or 6275770 ×2

Tubes and Hoses 2 pieces

  • Axle Hose, Soft 12L Red Part 32200 Element 6296597 or 6097866 ×2

Technic Gears 1 piece

  • Technic Gear 12 Tooth Double Bevel Black Part 32270 Element 4177431 ×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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