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.

U-Wing

Checking

6573698 U-Wing

52 pieces in 27 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

White 17 pieces

  • Brick Curved Inverted 4 x 1 White Part 13547 Element 6552146 or 6034675 ×1
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×2
  • Plate 3 x 3 White Part 11212 Element 6552153 or 6104805 ×1
  • Plate Special 1 x 2 with Pin Hole on Top White Part 11458 Element 6632146 or 6057414 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×2
  • Wedge Plate 2 x 2 Cut Corner White Part 26601 Element 6552166 or 6550160 ×2
  • Wedge Plate 4 x 2 Left White Part 41770 Element 6552119 or 4161326 ×1
  • Wedge Plate 4 x 2 Right White Part 41769 Element 6552118 or 4160857 ×1

Light Bluish Gray 11 pieces

  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly] Light Bluish Gray Part 1927 Element 6416524 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Light Bluish Gray Part 35480 Element 6248890 ×1
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×4

Trans-Clear 8 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Clear Part 54200 Element 6245250 or 4244362 ×1
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 ×6

Dark Bluish Gray 6 pieces

  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×2
  • Plate 3 x 3 Dark Bluish Gray Part 11212 Element 6039176 ×1
  • Plate Special 1 x 2 with Pin Hole Underneath Dark Bluish Gray Part 18677 Element 6396058 ×2
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 ×1

Blue 5 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Blue Part 11477 Element 6055065 ×1
  • Tile 1 x 1 with Groove Blue Part 3070b Element 4206330 or 307073 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Blue Part 2412b Element 241223 ×2

Trans-Orange 4 pieces

  • Plate Round 1 x 1 with Open Stud Trans-Orange Part 85861 Element 6510162 or 6174023 ×4

Yellow 1 piece

  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×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.