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.

Build-N-Store Chest

Checking

365-2 Build-N-Store Chest

343 pieces in 44 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

Bricks 304 pieces

  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×24
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×10
  • Brick 2 x 2 Blue Part 3003 Element 4103589 or 300373 ×38
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×6
  • Brick 2 x 4 Blue Part 3001 Element 300173 or 300123 ×28
  • Brick 2 x 8 Blue Part 3007 Element 6037384 or 300723 ×2
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×34
  • Brick 2 x 3 Red Part 3002 Element 300271 or 300221 ×6
  • Brick 2 x 4 Red Part 3001 Element 300121 ×26
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×30
  • Brick 2 x 2 with Blue Dot on One Side Print White Part 3003pr0055 ×2
  • Brick 2 x 2 with Eye with White Print on Two Sides, Offset White Part 3003pr0053 Element 81508 ×2
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×6
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×27
  • Brick 2 x 6 White Part 2456 Element 6552122 or 4249698 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×26
  • Brick 2 x 2 with Eye [No Pupils] Print on Two Sides, Offset Yellow Part 3003pr0052 ×2
  • Brick 2 x 3 Yellow Part 3002 Element 300224 ×6
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×22
  • Brick 2 x 4 with Smile and Frown Print on Opposite Sides Yellow Part 3001pr0043 Element 80141 ×1

Windows and Doors 8 pieces

  • Door Frame 2 x 4 x 5 Red Part 4130 ×2
  • Window 2 x 4 x 3 Frame with Solid Studs Red Part 4132 Element 413221 ×2
  • Door 1 x 4 x 5 White Part 4131 ×2
  • Window 2 x 4 x 3 Pane White Part 4133 Element 4113220 or 413301 ×2

Plants & Trees 7 pieces

  • Plant, Flower 2 x 2 - Round [Open Stud] Blue Part 4728 Element 472823 ×1
  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×3
  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] Red Part 4728 Element 472821 ×1
  • Plant, Flower 2 x 2 - Round [Open Stud] White Part 4728 Element 6047840 or 472801 ×1

Wheels and Tyres 6 pieces

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

Bars, Ladders and Fences 4 pieces

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

Bricks Round and Cones 4 pieces

  • Brick Round Corner 4 x 4 Full Brick Blue Part 2577 Element 4240191 or 4193523 ×4

Baseplates 2 pieces

  • Baseplate 16 x 32 Yellow Part 3857 ×2

Bricks Curved 2 pieces

  • Brick Arch 2 x 8 x 3 Red Part 4743 Element 474321 ×1
  • Brick Curved 2 x 4 x 2 Double with Clock Print Yellow Part 4744pr0026 ×1

Bricks Special 1 piece

  • Brick Special 2 x 2 with Pin and No Axle Hole Red Part 4730 Element 473021 ×1

Gear Parts 1 piece

  • Storage Bin, with Handle and Slots for Six Compartments Red Part 2745stor ×1

Minifigs 1 piece

  • Basic Figure Finger Puppet Male [Blue, Brown Hair] [No Color/Any Color] Part fig0002 ×1

Tools 1 piece

  • Brick Separator v1.0 Dark Gray Part 6007 Element 600727 ×1

Transportation - Sea and Air 1 piece

  • Propeller 2 Blade Twisted Yellow Part 4745 Element 474524 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 2 x 4 x 3 Frame with Hollow Studs Red Part 2352b Element 235221 ×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.