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.

Basic Pack

Checking

1050 Basic Pack

381 pieces in 37 part and color combinations.

LEGO counts 402 pieces. This inventory comes from a separate parts catalog and lists 381; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

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

Bricks 324 pieces

  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×22
  • Brick 2 x 3 Black Part 3002 Element 300226 ×12
  • Brick 2 x 4 Black Part 3001 Element 300126 ×12
  • Brick 2 x 2 without Inside Ridges Blue Part 3003a ×22
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×12
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×24
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×8
  • Brick 4 x 12 Blue Part 4202 Element 4230930 or 4160093 ×6
  • Brick 8 x 16 Green Part 4204 Element 4181116 or 420428 ×6
  • Brick 2 x 10 Red Part 3006 Element 4617857 or 300621 ×8
  • Brick 2 x 2 without Inside Ridges Red Part 3003a ×22
  • Brick 2 x 3 without Cross Supports Red Part 3002a ×12
  • Brick 2 x 4 Red Part 3001 Element 300121 ×24
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×22
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×12
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×24
  • Brick 2 x 2 with Eye [No Pupils] Print on Two Sides, Offset Yellow Part 3003pr0052 ×12
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×22
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×12
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×24
  • Brick 2 x 4 with Smile and Frown Print on Opposite Sides Yellow Part 3001pr0043 Element 80141 ×6

Plants & Trees 18 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×6
  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×4
  • Plant, Tree Cypress Green Part 3778 Element 4174726 or 377828 ×2
  • Plant, Flower 2 x 2 - Round [Open Stud] Red Part 4728 Element 472821 ×2
  • Plant, Flower 2 x 2 - Round [Open Stud] White Part 4728 Element 6047840 or 472801 ×2
  • Plant, Flower 2 x 2 - Round [Open Stud] Yellow Part 4728 Element 472824 ×2

Bars, Ladders and Fences 12 pieces

  • Fence Lattice 1 x 4 x 2 Red Part 3185 Element 318521 ×12

Bricks Curved 6 pieces

  • Brick Arch 2 x 8 x 3 Red Part 4743 Element 474321 ×3
  • Brick Curved 2 x 4 x 2 Double [Plain] Yellow Part 4744 Element 6288274 or 474424 ×3

Bricks Special 6 pieces

  • Brick Special 2 x 4 with Coupling, Female Red Part 4748 Element 474821 ×3
  • Brick Special 2 x 4 with Coupling, Male Red Part 4747 Element 474771 or 474721 ×3

Minifigs 6 pieces

  • Basic Figure Finger Puppet Female [Red, Black Hair] [No Color/Any Color] Part fig0001 ×3
  • Basic Figure Finger Puppet Male [Blue, Brown Hair] [No Color/Any Color] Part fig0002 ×3

Windscreens and Fuselage 6 pieces

  • Windscreen 2 x 4 x 2 Vertical Trans-Clear Part 4594 Element 6507908 or 6240532 ×6

Wheels and Tyres 3 pieces

  • Brick Special 2 x 4 with Wheels, Freestyle Red Black Part 4180c02 ×1
  • Tyre Offset Tread 24 x 8 Black Part 3483 Element 4501048 or 348326 ×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.