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.

Spot & Friends

Checking

4171 Spot & Friends

53 pieces in 28 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.

Show

Piece checklist

Bricks 32 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×4
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×3
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×2
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×1
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×1
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×1
  • Brick 1 x 1 with Eye Squinting Black and White Print Yellow Part 3005pr0002 Element 4143829 ×2
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×6
  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×2
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×5
  • Brick 1 x 6 Yellow Part 3009 Element 300924 ×1
  • Brick 2 x 4 Yellow Part 3001 Element 300124 ×1

Bricks Sloped 8 pieces

  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×1
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Yellow Part 3660 Element 366024 ×2

Plates 8 pieces

  • Plate 6 x 12 Green Part 3028 Element 6177783 or 4614769 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×2
  • Plate 2 x 3 Red Part 3021 Element 302121 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 4 x 8 Red Part 3035 Element 303521 ×1

Bricks Curved 2 pieces

  • Brick Arch 1 x 4 x 2 Blue Part 6182 Element 4142235 or 618223 ×2

Plants & Trees 2 pieces

  • Plant, Flower 2 x 2 - Round [Open Stud] Blue Part 4728 Element 472823 ×1
  • Plant, Flower 2 x 2 Leaves - Angular Green Part 4727 Element 472728 ×1

Animal / Creature Body Parts 1 piece

  • Animal Body Part, Dog Head 2 x 4 x 2 1/3 with Dog Head Print White Part 6243pr0001 Element 82249 ×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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