BlockTalk Find Your Set

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.

Mobile Site Office

Checking

646-2 Mobile Site Office

51 pieces in 24 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 21 pieces

  • Brick 1 x 4 with Bottom Tubes, Lowered Center Cross Support Blue Part 3010a ×1
  • Brick 1 x 4 with Chrome Silver Car Grill Print Blue Part 3010apr0008 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×8
  • Brick 1 x 4 with Bottom Tubes, Lowered Center Cross Support Red Part 3010a ×3
  • Brick 2 x 4 without Cross Supports Trans-Clear Part 3001a ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×2
  • Brick 1 x 4 with Black 'Legoland' Logo Print Yellow Part 3010apr0002 ×2
  • Brick 1 x 4 with Bottom Tubes, Lowered Center Cross Support Yellow Part 3010a ×1

Wheels and Tyres 12 pieces

  • Brick Special 2 x 2 [Red Wheels for Single Tyre] Black Part 3137c01 ×4
  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×8

Plates 8 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×1
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×2

Windows and Doors 4 pieces

  • Door 1 x 2 x 3 Left with Hollow Studs, Fixed Glass White Part 32bc01 ×1
  • Window 1 x 2 x 2 Classic, Extended Lip, Hollow Studs [with Glass] White Part 3081bc01 ×3

Bricks Round and Cones 2 pieces

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

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 2 Double Concave Blue Part 3046a Element 6088710 or 4626370 ×2

Plates Special 2 pieces

  • Plate Special 1 x 4 with Towball Blue Part 3184 ×1
  • Plate Special 1 x 4 with Towball Socket, Long, 4 Slots Blue Part 3183b ×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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