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.

Picture Frame

Checking

40173 Picture Frame

268 pieces in 57 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 98 pieces

  • Brick 1 x 1 Blue Part 3005 Element 300523 ×1
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×3
  • Brick 1 x 4 Blue Part 3010 Element 301023 ×8
  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×5
  • Brick 1 x 4 Lime Part 3010 Element 4234716 or 4122449 ×12
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×3
  • Brick 1 x 4 Red Part 3010 Element 301021 ×8
  • Brick 1 x 12 White Part 6112 Element 6548281 or 611201 ×1
  • Brick 1 x 16 White Part 2465 Element 6552092 or 246501 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×12
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×7
  • Brick 1 x 2 x 5 with Hollow Studs White Part 2454b Element 6619280 or 245401 ×6
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×4
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×6
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×10
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×7
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×4

Plates 61 pieces

  • Plate 1 x 4 Blue Part 3710 Element 371023 ×2
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×2
  • Plate 2 x 2 Corner Blue Part 2420 Element 242073 or 242023 ×1
  • Plate 6 x 6 Blue Part 3958 Element 4199519 or 395823 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×3
  • Plate 1 x 1 Green Part 3024 Element 302428 ×16
  • Plate 6 x 6 Lime Part 3958 Element 4525858 ×1
  • Plate 2 x 2 Corner Red Part 2420 Element 242071 or 242021 ×1
  • Plate 6 x 6 Red Part 3958 Element 4144302 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×2
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×10
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×13
  • Plate 4 x 12 White Part 3029 Element 4168072 or 302901 ×1
  • Plate 4 x 6 White Part 3032 Element 303201 ×2

Tiles 49 pieces

  • Tile 1 x 1 with Groove Blue Part 3070b Element 4206330 or 307073 ×1
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×3
  • Tile 1 x 4 with Groove Blue Part 2431 Element 243123 ×6
  • Tile 1 x 6 with Groove Blue Part 6636 Element 4118785 or 4108153 ×3
  • Tile 1 x 1 with Groove Red Part 3070b Element 307021 ×1
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×8
  • Tile 1 x 6 with Groove Red Part 6636 Element 4113858 ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×11
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×10

Plates Round Curved and Dishes 19 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×7
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×8

Tiles Round and Curved 19 pieces

  • Tile Round 2 x 2 with Bottom Stud Holder Blue Part 14769 Element 6133844 ×4
  • Tile Round 2 x 2 with Bottom Stud Holder Red Part 14769 Element 6066342 ×4
  • Tile Round 2 x 2 with Bottom Stud Holder White Part 14769 Element 6601846 or 6044691 ×11

Technic Bricks 7 pieces

  • Technic Brick 1 x 1 with Pin Hole Dark Bluish Gray Part 6541 Element 4210639 ×3
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×4

Technic Pins 5 pieces

  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×5

Bricks Sloped 3 pieces

  • Brick Sloped 75° 2 x 2 x 3 [Solid Studs] White Part 98560 Element 6552137 or 6004491 ×3

Bricks Special 3 pieces

  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×3

Plates Special 3 pieces

  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes White Part 92593 Element 4597131 ×3

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×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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