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.

BricQ Motion Prime Personal Learning Kit

Checking

2000470 BricQ Motion Prime Personal Learning Kit

78 pieces in 37 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

Black 21 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×1
  • Brick Special 2 x 6 x 2 Weight with Sealed Bottom and Dimples on Ends Black Part 73090b Element 6094053 or 73843 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Technic Axle 16 Black Part 50451 Element 6317564 or 6043747 ×1
  • Technic Axle 8 Black Part 3707 Element 370726 ×1
  • Technic Gear 36 Tooth Double Bevel Black Part 32498 Element 4255563 or 4177434 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×8
  • Tyre 43.2 x 14 Black Part 30699 Element 6518575 or 6182551 ×4

Yellow 14 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×1
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2
  • Brick Special 2 x 4 with 3 Axle Holes Yellow Part 39789 Element 6244914 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Yellow Part 15573 Element 6092583 ×2
  • Technic Beam 1 x 3 Thick Yellow Part 32523 Element 4153707 ×2
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Yellow Part 32348 Element 6278131 or 4500485 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] Yellow Part 3894 Element 389424 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×2

Red 13 pieces

  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Red Part 3747b Element 4500462 ×1
  • Brick Special 2 x 4 with 3 Axle Holes Red Part 39789 Element 6244918 ×1
  • Technic Axle 12 Red Part 3708 Element 6147702 or 4125190 ×2
  • Technic Beam 1 x 3 Thick Red Part 32523 Element 4153718 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Red Part 3702 Element 370221 ×4
  • Technic Bush Red Part 3713 Element 6271820 or 4227155 1 spare in the box ×2
  • Tile 2 x 4 with Groove Red Part 87079 Element 4560179 ×1

Light Bluish Gray 9 pieces

  • Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Across Part) Light Bluish Gray Part 55615 Element 4296059 ×2
  • Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes) Light Bluish Gray Part 65489 Element 6282158 ×5
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×2

White 8 pieces

  • Tile 1 x 2 with Broken Arrow Long Yellow with Black Border Print White Part 3069bpr0206 Element 6194502 ×2
  • Tile Round 1 x 1 with Squinted Eye, Center Side Pupil Print White Part 98138pr0083 Element 6329648 1 spare in the box ×2
  • Wheel 30 x 14 White Part 56904 Element 4539270 ×4

Lime 6 pieces

  • Technic Beam 1 x 11 Thick Lime Part 32525 Element 6293920 or 4534911 ×2
  • Technic Beam 3 x 5 L-Shape Thick Lime Part 32526 Element 6286222 or 6170475 ×2
  • Technic Beam Frame 7 x 11 Lime Part 39794 Element 6247432 ×2

Blue 2 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×2

Medium Azure 2 pieces

  • Technic Beam Frame 11 x 15 Medium Azure Part 39790 Element 6245375 ×2

Tan 2 pieces

  • Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] Tan Part 18575 Element 6346517 or 6084724 ×1
  • Technic Pin Long without Friction Ridges, with Anti-Roll Notch Tan Part 39888 Element 6321305 ×1

Bright Green 1 piece

  • Technic Pin Connector Round [Slotted] Bright Green Part 62462 Element 6173135 or 6097400 ×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.