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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.

LEGO Store Grand Opening Exclusive Set, King of Prussia Mall, PA

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KINGOFPRUSSIA LEGO Store Grand Opening Exclusive Set, King of Prussia Mall, PA

66 pieces in 26 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 27 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×4
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×2
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×5
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×4
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×3
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×3

Bricks 19 pieces

  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×1
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×4
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×4
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×8

Bricks Sloped 15 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×2
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Light Bluish Gray Part 3048c Element 4211411 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×1
  • Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×3
  • Brick Sloped 45° 2 x 2 Double Convex Light Bluish Gray Part 3045 Element 4216250 ×4

Technic Axles 2 pieces

  • Technic Axle 2 Notched Black Part 32062 Element 4109810 or 3206226 ×2

Bricks Round and Cones 1 piece

  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×1

Technic Gears 1 piece

  • Technic Ball with 8 Grooves Light Bluish Gray Part 2907 Element 4532971 or 4255128 ×1

Technic Steering, Suspension and Engine 1 piece

  • Technic Universal Joint 3L [Complete Assembly] Light Bluish Gray Part 61903 Element 6335279 or 6321309 ×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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