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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.

Starter Train Set with Motor

Checking

116 Starter Train Set with Motor

362 pieces in 59 part and color combinations.

LEGO counts 439 pieces. This inventory comes from a separate parts catalog and lists 362; 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

Red 101 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×16
  • 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 8 Red Part 3008 Element 300821 ×4
  • Door 1 x 3 x 4 Left Red Part 3193 ×2
  • Door 1 x 3 x 4 Right Red Part 3192 ×2
  • Plate 1 x 1 Red Part 3024 Element 302421 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×4
  • Plate 2 x 3 Red Part 3021 Element 302121 ×26
  • Plate 2 x 4 Red Part 3020 Element 302021 ×3
  • Plate Special 2 x 4 with Train Coupler Closed for Hook Red Part 737 ×5
  • Plate Special 2 x 4 with Train Coupler Open with Hook Red Part 737bc01 ×5
  • Train Wheel with 2 x 2 Stud Center, Beveled Tread and Cam Axle for Motor Red Part upn0384b ×4
  • Train Wheel with 2 x 2 Stud Center, Traction Teeth Red Part upn0384a ×16
  • Window 1 x 1 x 1 Classic with Long Sill [Complete] Red Part 3087bc01 ×2

Black 81 pieces

  • Battery Box, 4.5V 7 x 11 x 3 Type 1 [Complete Assembly] Black Part 468c01 ×1
  • Brick 1 x 1 Black Part 3005 Element 300526 ×8
  • Brick 1 x 4 Black Part 3010 Element 301026 ×3
  • Brick 1 x 6 Black Part 3009 Element 300926 ×4
  • Brick 1 x 8 with Gold '116' Center Print Black Part 3008pr0062 ×2
  • Brick 1 x 8 with Gold '116' Left Print Black Part 3008pr0063 ×1
  • Brick 1 x 8 with Gold '116' Right Print Black Part 3008pr0064 ×1
  • Brick 2 x 4 without Cross Supports Black Part 3001a ×13
  • Brick Round 1 x 1 Solid Stud Black Part 3062a ×1
  • Brick Sloped 45° 2 x 1 without Bottom Pin Black Part 3040a ×2
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×4
  • Brick Sloped 45° 2 x 2 Double Convex Black Part 3045 Element 4189064 or 304526 ×2
  • Brick Sloped 45° 2 x 3 Black Part 3038 Element 303826 ×2
  • Brick Sloped 45° 2 x 4 Black Part 3037 Element 303726 ×6
  • Motor, Train, 4.5V 12 x 4 x 4 Type I Black Part upn0284c02 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×10
  • Plate 2 x 2 Black Part 3022 Element 302226 ×5
  • Plate 2 x 3 Black Part 3021 Element 302126 ×5
  • Plate 2 x 4 Black Part 3020 Element 302026 ×8

Blue 52 pieces

  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×6
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×6
  • 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

Light Gray 38 pieces

  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×6
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×2
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×20
  • Plate 6 x 16 Light Gray Part 3027 Element 4160991 or 302702 ×5
  • Plate Special 6 x 16 with Motor Opening Wide Light Gray Part 3058b ×1
  • Tyre for Train Wheel for Electric Train Motor 12V Light Gray Part 458 ×4

Yellow 33 pieces

  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×8
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×16
  • Brick 1 x 4 with Envelope on Red Background, Left Print Yellow Part 3010pr9972 ×1
  • Brick 1 x 4 with Envelope on Red Background, Right Print Yellow Part 3010pr9971 ×1
  • Brick 1 x 4 with Horn on Red Background Print, Left Side Yellow Part 3010pr9945 ×1
  • Brick 1 x 4 with Horn on Red Background Print, Right Side Yellow Part 3010pr9946 ×1
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×4
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×1

White 29 pieces

  • Brick Special 2 x 4 with Wheel Holder Old, Clear Bottom, Red Inside White Part 7049bc01 ×8
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×20
  • Wire with 4 x Blue 1-prong Connectors 4.5V, Hollow Pins 15L White Part 996ac15 ×1

Trans-Clear 28 pieces

  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×26

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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