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.

Universal Building Set

Checking

8030 Universal Building Set

141 pieces in 38 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

Plates 36 pieces

  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×2
  • Plate 4 x 8 Light Gray Part 3035 Element 303502 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×14
  • Plate 1 x 4 Red Part 3710 Element 371021 ×4
  • Plate 1 x 6 Red Part 3666 Element 366621 ×4
  • Plate 1 x 8 Red Part 3460 Element 346021 ×4
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×2
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 ×4

Technic Bricks 31 pieces

  • Technic Brick 1 x 12 [11 Pin Holes] Red Part 3895 Element 389521 ×4
  • Technic Brick 1 x 16 [15 Pin Holes] Red Part 3703 Element 370321 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×8
  • Technic Brick 1 x 4 [3 Pin Holes] Red Part 3701 Element 370121 ×7
  • Technic Brick 1 x 6 [5 Pin Holes] Red Part 3894 Element 389421 ×4
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×4

Technic Pins 26 pieces

  • Technic Pin with Friction Ridges Lengthwise, without Center Slots Black Part 4459 ×16
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×8
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×2

Wheels and Tyres 13 pieces

  • Tyre 43 x 17 Black Part 3634 Element 4523564 or 363426 ×6
  • Technic Wedge Belt Wheel [aka Pulley] Light Gray Part 4185 Element 4100502 or 418502 ×1
  • Wheel with Split Axle hole Light Gray Part 3482 Element 348202 ×6

Technic Bushes 8 pieces

  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 ×8

Technic Axles 7 pieces

  • Technic Axle 10 Black Part 3737 Element 373726 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle 6 Black Part 3706 Element 370626 ×2
  • Technic Axle 8 Black Part 3707 Element 370726 ×1

Technic Gears 5 pieces

  • Technic Gear 24 Tooth Crown with Pointed Teeth Light Gray Part 3650b ×1
  • Technic Gear 24 Tooth [Old Style - Three axle holes] Light Gray Part 3648a ×1
  • Technic Gear 8 Tooth Light Gray Part 3647 Element 364702 ×2
  • Technic Gear Rack 1 x 4 Light Gray Part 3743 Element 374302 ×1

Technic Connectors 4 pieces

  • Technic Axle and Pin Connector Light Gray Part 3651 Element 4105243 or 365102 ×4

Technic Steering, Suspension and Engine 4 pieces

  • Technic Steering Arm Light Gray Part 4261 Element 4225506 or 4189316 ×2
  • Technic Steering Pulley Large Light Gray Part 3736 Element 373602 ×1
  • Technic Universal Joint 4L [Complete Assembly] Light Gray Part 9244 Element 9244 ×1

Technic Special 3 pieces

  • Technic Plate 1 x 8 with Toothed Ends Light Gray Part 4442 Element 444252 or 444202 ×3

Plates Special 2 pieces

  • Technic Plate 2 x 4 [3 Holes] Light Gray Part 3709 Element 370902 ×1
  • Technic Plate 2 x 8 [7 Holes] Light Gray Part 3738 Element 373802 ×1

Tiles 2 pieces

  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×2

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.