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.

House

Checking

WEETABIX3 House

141 pieces in 36 part and color combinations, plus 2 minifigures.

LEGO counts 140 pieces. This inventory comes from a separate parts catalog and lists 149, including the 8 parts inside the minifigures; 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 75 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×7
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 8 Black Part 3008 Element 300826 ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×12
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×18
  • Brick 1 x 4 Red Part 3010 Element 301021 ×9
  • Brick 1 x 6 Red Part 3009 Element 300921 ×6
  • Brick 1 x 8 Red Part 3008 Element 300821 ×14
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×2
  • Brick 2 x 2 without Inside Ridges White Part 3003a ×1
  • Brick 2 x 3 without Cross Supports White Part 3002a ×1

Bricks Sloped 27 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×3
  • Brick Sloped 45° 2 x 1 Double / Inverted with Hollow Bottom Blue Part 3049c ×2
  • Brick Sloped 45° 2 x 1 without Bottom Pin Blue Part 3040a ×6
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×2
  • Brick Sloped 45° 2 x 3 Blue Part 3038 Element 4580925 or 4112233 ×2
  • Brick Sloped 45° 2 x 3 Double Blue Part 3042 ×3
  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×3
  • Brick Sloped 45° 2 x 4 Double Blue Part 3041 Element 4240172 or 304123 ×1
  • Brick Sloped 45° 2 x 1 without Bottom Pin White Part 3040a ×5

Windows and Doors 16 pieces

  • Door 1 x 3 x 4 with Glass Blue Part 7930 ×2
  • Door 1 x 2 x 3 Left with Hollow Studs, Fixed Glass Red Part 32bc01 ×2
  • Door Frame 1 x 3 x 4 White Part 3579 ×2
  • Window 1 x 1 x 1 Classic with Short Sill, No Glass White Part 3087c ×4
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] White Part 3081c01 Element 73594 ×4
  • Window 1 x 3 x 2 Classic with Short Sill [Complete] White Part 31cc01 ×2

Plates 15 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×3
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×6
  • Plate 1 x 1 Red Part 3024 Element 302421 ×2
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×1
  • Plate 6 x 8 White Part 3036 Element 303651 or 303601 ×2

Bricks Round and Cones 6 pieces

  • Brick Round 1 x 1 Solid Stud Black Part 3062a ×6

Bars, Ladders and Fences 1 piece

  • Fence Lattice 1 x 4 x 2 White Part 3185 Element 6628214 or 4587272 ×1

Baseplates 1 piece

  • Baseplate 8 x 24 Green Part 3497 Element 349728 ×1

Minifigures 2 figures

  • LEGOLAND Female Blue Torso, White Legs Minifigure, checked as a whole figure ×1
  • LEGOLAND Female, White Torso, Yellow Legs, Red Hair Minifigure, checked as a whole figure ×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.