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.

Windmill

Checking

WEETABIX2 Windmill

118 pieces in 44 part and color combinations, plus 2 minifigures.

The piece count includes the 8 parts inside the set's minifigures, which this inventory lists separately. 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 41 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 1 x 4 Black Part 3010 Element 301026 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×13
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×8
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×2
  • Brick 2 x 2 without Inside Ridges Yellow Part 3003a ×3
  • Brick 2 x 4 without Cross Supports Yellow Part 3001a ×4

Bricks Sloped 41 pieces

  • Brick Sloped 45° 2 x 1 Triple with Hollow Underside Red Part 3048a ×2
  • Brick Sloped 45° 2 x 1 without Bottom Pin Red Part 3040a ×2
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×12
  • Brick Sloped 45° 2 x 2 Double Red Part 3043 Element 304321 ×4
  • Brick Sloped 45° 2 x 2 Double Concave Red Part 3046a Element 4218892 or 4200489 ×4
  • Brick Sloped 45° 2 x 3 Red Part 3038 Element 6303213 or 4195081 ×4
  • Brick Sloped 45° 2 x 3 Double Red Part 3042 Element 304221 ×2
  • Brick Sloped 45° 2 x 4 Red Part 3037 Element 303721 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Round Bottom Pin] Red Part 3660a ×1
  • Brick Sloped Inverted 45° 2 x 2 [Round Bottom Pin] Yellow Part 3660a ×4

Plates 13 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×4
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1

Wheels and Tyres 8 pieces

  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×2
  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×1
  • Tyre 15 x 6 Offset Tread Small Black Part 3641 Element 4501046 or 364126 ×4
  • Wheel Old with 4 Studs Red Part 7039 Element 7039 ×1

Bars, Ladders and Fences 3 pieces

  • Fence Lattice 1 x 4 x 1 White Part 3633 Element 4550171 or 363301 ×2
  • Fence Lattice 1 x 4 x 2 White Part 3185 Element 6628214 or 4587272 ×1

Bricks Curved 3 pieces

  • Brick Arch 1 x 4 Yellow Part 3659 Element 6310246 or 4280126 ×3

Minifig Lower Body 3 pieces

  • Brick 1 x 2 Tapered (Legs Old) Red Part 15 ×3

Plates Special 2 pieces

  • Plate Special 1 x 4 with Towball Yellow Part 3184 Element 318424 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 2 Slots Yellow Part 3183a ×1

Windows and Doors 2 pieces

  • Door 1 x 3 x 4 with Glass Blue Part 7930 ×1
  • Door Frame 1 x 3 x 4 Yellow Part 3579 ×1

Baseplates 1 piece

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

Plants & Trees 1 piece

  • Plant, Pine Tree, Large, 4 x 4 x 6 2/3 Green Part 3471 Element 6248463 or 347128 ×1

Minifigures 2 figures

  • LEGOLAND White Torso, Black Legs, Red Hat Minifigure, checked as a whole figure ×1
  • LEGOLAND White Torso, Black Legs, White Hat 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.