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.

Excavator

Checking

412504 Excavator

65 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.

Show

Piece checklist

Technic Pins 28 pieces

  • Technic Pin Double with Axle Hole - Squared Holes Black Part 65098 Element 6315899 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 ×7
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×8
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot Blue Part 42924 Element 6299413 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×4
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×6

Technic Beams 14 pieces

  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×3
  • Technic Beam 2 x 3 L-Shape with Quarter Ellipse Thick Black Part 71708 Element 6326047 ×1
  • Technic Beam 2 x 5 L-Shape with Quarter Ellipse Thick Black Part 80286 Element 6407066 or 6378466 ×1
  • Technic Beam 1 x 7 Thick Dark Bluish Gray Part 32524 Element 4495931 or 4210752 ×2
  • Technic Beam 1 x 4 Thin Yellow Part 32449 Element 6327559 or 4199345 ×2
  • Technic Beam 1 x 5 Thick Yellow Part 32316 Element 4142133 or 4128590 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Yellow Part 32271 Element 6276838 or 4544005 ×1
  • Technic Beam 2 x 4 L-Shape Thick Yellow Part 32140 Element 6271828 or 4141628 ×2

Technic Connectors 12 pieces

  • Technic Pin Connector Hub with 2 Axles Black Part 27940 Element 6396457 ×2
  • Technic Axle and Pin Connector Perpendicular Double Split [Reinforced] Dark Bluish Gray Part 69819 Element 6349479 ×2
  • Technic Pin Connector Hub with 1 Axle Dark Bluish Gray Part 22961 Element 6135014 ×2
  • Technic Axle and Pin Connector Perpendicular Red Part 6536 Element 6261373 or 4188298 ×1
  • Technic Pin Connector Round [Slotted] Red Part 62462 Element 6173126 or 4526984 ×1
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole Yellow Part 32184 Element 6276974 or 6037676 ×4

Wheels and Tyres 8 pieces

  • Tyre 17.5 x 6 with Shallow Staggered Treads and Middle Band Black Part 92409 Element 4617848 ×4
  • Wheel 11 x 8 with Center Groove Light Bluish Gray Part 42610 Element 4211758 ×4

Technic Axles 2 pieces

  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1

Technic Panels 1 piece

  • Technic Panel Fairing 2 x 3 x 1 Black Part 71682 Element 6331026 ×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.