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.

Harry Potter Quidditch Tower (TRU Event Exclusive)

Checking

TRU01 Harry Potter Quidditch Tower (TRU Event Exclusive)

38 pieces in 19 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

Light Gray 10 pieces

  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×3
  • Brick 2 x 3 Light Gray Part 3002 Element 300252 or 300202 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×2
  • Brick Sloped 45° 2 x 2 Double Convex Light Gray Part 3045 Element 4114057 or 304502 ×2
  • Seat / Chair 2 x 2 Light Gray Part 4079 Element 407902 ×1

Tan 10 pieces

  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×4
  • Brick 2 x 3 Tan Part 3002 Element 4159739 or 300205 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Tan Part 3040b Element 4121972 or 4113989 ×2
  • Brick Sloped 45° 2 x 2 Double Convex Tan Part 3045 Element 6222431 or 4542407 ×2

Black 9 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 2 x 3 Black Part 3002 Element 300226 ×3
  • Brick Sloped 45° 2 x 2 Double Black Part 3043 Element 4163373 or 304326 ×1
  • Plate 4 x 6 Black Part 3032 Element 303226 ×1

Blue 7 pieces

  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×3
  • Brick 2 x 3 Blue Part 3002 Element 300223 ×2
  • Brick Sloped 45° 2 x 2 Double Blue Part 3043 Element 4560573 or 4280124 ×1
  • Plate 4 x 6 Blue Part 3032 Element 303223 ×1

Dark Gray 1 piece

  • Wedge Plate 4 x 6 Cut Corners Dark Gray Part 32059 Element 4129577 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set TRU01-1 [No Color/Any Color] Part stickerupn0127 ×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.