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.

Thatcher Perkins Locomotive

Checking

396 Thatcher Perkins Locomotive

433 pieces in 76 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.

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Piece checklist

Bricks 155 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×9
  • Brick 1 x 2 Black Part 3004 Element 300426 ×18
  • Brick 1 x 4 Black Part 3010 Element 301026 ×20
  • Brick 1 x 6 Black Part 3009 Element 300926 ×9
  • Brick 1 x 8 Black Part 3008 Element 300826 ×10
  • Brick 2 x 3 without Cross Supports Black Part 3002a ×15
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×2
  • Brick 2 x 8 Black Part 3007 Element 6037390 or 300726 ×3
  • Brick 1 x 1 Blue Part 3005 Element 300523 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×2
  • Brick 1 x 6 Blue Part 3009 Element 300923 ×6
  • Brick 1 x 8 Blue Part 3008 Element 300823 ×8
  • Brick 1 x 1 Red Part 3005 Element 300521 ×14
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×16
  • Brick 1 x 4 Red Part 3010 Element 301021 ×6
  • Brick 1 x 6 Red Part 3009 Element 300921 ×4
  • Brick 1 x 8 Red Part 3008 Element 300821 ×5
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4

Plates 134 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×17
  • Plate 1 x 2 Black Part 3023 Element 302326 ×22
  • Plate 2 x 2 Black Part 3022 Element 302226 ×8
  • Plate 2 x 3 Black Part 3021 Element 302126 ×5
  • Plate 2 x 4 Black Part 3020 Element 302026 ×10
  • Plate 2 x 8 Black Part 3034 Element 303426 ×5
  • Plate 4 x 10 Black Part 3030 Element 303076 or 303026 ×3
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×3
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 6 x 10 Black Part 3033 Element 303326 ×7
  • Plate 6 x 12 Black Part 3028 Element 302826 ×1
  • Plate 6 x 16 Black Part 3027 Element 302726 ×1
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×2
  • Plate 1 x 1 Blue Part 3024 Element 302423 ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×3
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×1
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×4
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×6
  • Plate 4 x 6 Blue Part 3032 Element 303223 ×4
  • Plate 1 x 2 Red Part 3023 Element 302321 ×6
  • Plate 1 x 8 Red Part 3460 Element 346021 ×1
  • Plate 2 x 4 Red Part 3020 Element 302021 ×5
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×8
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×1
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×4
  • Plate 4 x 4 Yellow Part 3031 Element 4243817 or 303124 ×2

Bricks Sloped 47 pieces

  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×6
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×5
  • Brick Sloped 45° 2 x 2 Double Convex Black Part 3045 Element 4189064 or 304526 ×8
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Round Bottom Pin] Black Part 3660a ×8
  • Brick Sloped 45° 2 x 3 Blue Part 3038 Element 4580925 or 4112233 ×2
  • Brick Sloped 45° 2 x 4 Blue Part 3037 Element 4107437 or 303723 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Round Bottom Pin] Blue Part 3660a ×6

Bricks Round and Cones 39 pieces

  • Brick Round 1 x 1 Solid Stud Black Part 3062a ×12
  • Brick Round 1 x 1 Solid Stud Blue Part 3062a ×4
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Blue Part 3063b Element 4497190 or 4239392 ×4
  • Brick Round 1 x 1 Solid Stud Yellow Part 3062a ×15
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Yellow Part 3063b Element 306324 ×4

Wheels and Tyres 32 pieces

  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside Black Part 7049bc01 ×11
  • Train Wheel Spoked for Motor Black Part upn0383a ×1
  • Tyre Smooth Old Style - Large Black Part 36 ×6
  • Tyre Smooth Old Style - Small Black Part 132a ×4
  • Wheel Spoked Large Red Part 35 ×6
  • Wheel Spoked with Stud Red Part 242c01 ×4

Bricks Curved 6 pieces

  • Brick Arch 1 x 4 Red Part 3659 Element 365921 ×2
  • Brick Arch 1 x 6 Red Part 3455 Element 4521570 or 345521 ×4

Transportation - Land 6 pieces

  • Train, Steam Engine Cylinder, 1 x 2 Studs, Flat Surfaces Black Part 263 ×2
  • Train Steam Drive Rod Holder Red Part upn0282 ×2
  • Train Steam Drive Rod Yellow Part upn0269 ×2

Minifig Heads 5 pieces

  • Minifig Head [Plain] [Solid Stud] Yellow Part 3626a ×5

Bars, Ladders and Fences 4 pieces

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

Windows and Doors 3 pieces

  • Window 1 x 2 x 2 Classic, Short Lip [with Glass] Yellow Part 3081c01 Element 7028 ×3

Stickers 1 piece

  • Sticker Sheet for Set 396-1 [No Color/Any Color] Part 4677 ×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.