BlockTalk Find Your Set

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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.

Small Locomotive

Checking

3740 Small Locomotive

66 pieces in 29 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

Plates Special 14 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×1
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×4
  • Plate Special 6 x 16 with Motor Opening Wide Black Part 3058b Element 4159871 ×1
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Light Gray Part 2436 Element 4282741 or 243602 ×2

Plates 12 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×3
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×4

Bricks 8 pieces

  • Brick 1 x 6 Black Part 3009 Element 300926 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×5

Bricks Sloped 6 pieces

  • Brick Sloped 65° 2 x 2 x 2 Smooth without Bottom Tube Black Part 3678a Element 367826 ×4
  • Brick Sloped Inverted 75° 2 x 1 x 3 Black Part 2449 Element 4636202 or 4561789 ×2

Tiles Special 5 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×5

Magnets and Holders 4 pieces

  • Magnet Cylindrical Black Part 73092 Element 73092 ×2
  • Train Coupling New Black Part 2920 Element 4299239 or 292076 ×2

Transportation - Land 4 pieces

  • Train Buffer Beam Black Part 4022 Element 4109853 or 402276 ×2
  • Wheel Holder, Train with Wheels [Complete Assembly] Black Part 2878c01 Element 4207401 or 74784 ×2

Bricks Special 3 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×3

Bars, Ladders and Fences 2 pieces

  • Bar 6.6L with Stop Ring [Umbrella Stand] Black Part 4095 Element 409526 ×2

Bricks Curved 2 pieces

  • Brick Arch 1 x 6 Black Part 3455 Element 345526 ×2

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder Black Part 30367b Element 4158779 ×1
  • Cone 1 x 1 [No Top Groove] Yellow Part 4589 Element 458924 ×1

Tiles 2 pieces

  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×2

Windows and Doors 2 pieces

  • Window 1 x 2 x 2 Plane, Solid Studs Black Part 2377 Element 237726 ×2

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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