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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.

Train with 5 Wagons and Circle of Track

Checking

180 Train with 5 Wagons and Circle of Track

220 pieces in 65 part and color combinations.

LEGO counts 228 pieces. This inventory comes from a separate parts catalog and lists 220; 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.

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Piece checklist

Bricks 61 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×7
  • Brick 1 x 2 Black Part 3004 Element 300426 ×7
  • Brick 1 x 4 Black Part 3010 Element 301026 ×8
  • Brick 1 x 6 Black Part 3009 Element 300926 ×3
  • Brick 1 x 8 Black Part 3008 Element 300826 ×4
  • Brick 2 x 2 without Inside Ridges Black Part 3003a ×2
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×3
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×6
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×3
  • Brick 2 x 4 without Cross Supports Blue Part 3001a ×2
  • Brick 1 x 1 Red Part 3005 Element 300521 ×4
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 4 Red Part 3010 Element 301021 ×2
  • Brick 1 x 6 Red Part 3009 Element 300921 ×2

Plates 54 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×2
  • Plate 1 x 1 Red Part 3024 Element 302421 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×11
  • Plate 2 x 3 Red Part 3021 Element 302121 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 4 x 8 Red Part 3035 Element 303521 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×20
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×1
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×1
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×3
  • Plate 4 x 8 Yellow Part 3035 Element 303524 ×2

Transportation - Land 43 pieces

  • Vehicle Track, Train, Tapered Rail Curved Inside Blue Part 3230a ×16
  • Vehicle Track, Train, Tapered Rail Curved Outside Blue Part 3229a ×16
  • Vehicle Track, Train, Tapered Rail Straight 16L Blue Part 3228a ×8
  • Train Direction Switch - 4.5V 2 x 3 Red Part 3218 ×1
  • Train Signal Circuit-Breaker Bar Red Part upn0387 ×1
  • Train Signal Post Red Part upn0262 ×1

Windows and Doors 17 pieces

  • Door 1 x 3 x 2 Left Red Part 3189 Element 4121824 ×2
  • Door 1 x 3 x 2 Right Red Part 3188 Element 4121823 ×2
  • Window 1 x 2 x 1, Short Lip [with Glass] Red Part 27c01 ×2
  • Door 1 x 2 x 3 Left with Hollow Studs, Fixed Glass Yellow Part 32bc01 ×2
  • Window 1 x 1 x 1 Classic with Short Sill, No Glass Yellow Part 3087c ×4
  • Window 1 x 1 x 2, Short Lip [no Glass] Yellow Part 29 ×2
  • Window 1 x 2 x 1, Short Lip [with Glass] Yellow Part 27c01 ×2
  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Yellow Part 3081c01 Element 7028 ×1

Bricks Sloped 13 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×4
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped 45° 2 x 3 Black Part 3038 Element 303826 ×2
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×2
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×1
  • Brick Sloped 45° 2 x 1 without Bottom Pin Red Part 3040a ×2

Wheels and Tyres 8 pieces

  • Tyre for Train Wheel for Electric Train Motor 12V Black Part 458 ×4
  • Train Wheel Spoked for Motor Red Part upn0383a ×4

Bars, Ladders and Fences 6 pieces

  • Fence Gate 1 x 4 x 2 Black Part 3186 ×1
  • Fence Gate 1 x 4 x 2 Base Black Part 3187 ×1
  • Fence Gate 1 x 3 x 2 Base Red Part 3359 ×4

Panels 6 pieces

  • Panel, Trapezoid, Tipper End Flat with Pins, 1 x 2 Anti-studs Red Part 3145 ×2
  • Panel, Trapezoid, Tipper End Flat with Pins, 1 x 2 Anti-studs Yellow Part 3145 ×4

Magnets and Holders 5 pieces

  • Train Base 6 x 12 Type 1 with Wheels and Magnets [Complete Assembly] Black Part 270c02 ×4
  • Train Base 6 x 16 Old with Magnets Red Part 4178a ×1

Electronics 4 pieces

  • Motor, Train, 4.5V, 4 x 12 x 3 1/3 Type 1 Black Part 564c01 ×1
  • Battery Cover, Train Car Roof 6 x 14 Blue Part 699 ×1
  • Battery Box, Train Car with Black Base, Red Wheels and Magnets Red Part 3443c02 ×1
  • Wire with 2-Prong Connectors, 12V / 4.5V 11L White Part upn0257c11 ×1

Bricks Round and Cones 1 piece

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

Stickers 1 piece

  • Sticker Sheet for Set 180-1 [No Color/Any Color] Part 003436 ×1

Tiles 1 piece

  • Tile 1 x 2 without Groove Black Part 3069a ×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.

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