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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.

Star Wars / M&M Mosaic - Promo Set

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SWMP Star Wars / M&M Mosaic - Promo Set

5,462 pieces in 30 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 5,275 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 Also in Dark Bluish GrayAlso in Dark Blue ×300
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish GrayAlso in Dark Blue ×300
  • Plate 1 x 4 Black Part 3710 Element 371026 Also in Dark Blue ×400
  • Plate 2 x 4 Black Part 3020 Element 302026 Also in Dark Blue ×200
  • Plate 1 x 1 Dark Blue Part 3024 Element 6554188 or 4184108 Also in Black ×200
  • Plate 1 x 2 Dark Blue Part 3023 Element 6554191 or 4528981 Also in Black ×200
  • Plate 1 x 4 Dark Blue Part 3710 Element 4502089 or 4177739 Also in Black ×150
  • Plate 2 x 4 Dark Blue Part 3020 Element 6554194 or 4667595 Also in Black ×275
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 Also in Black ×200
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×300
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×200
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×200
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×350
  • Plate 1 x 4 Orange Part 3710 Element 4118782 ×100
  • Plate 1 x 1 Red Part 3024 Element 302421 ×200
  • Plate 1 x 2 Red Part 3023 Element 302321 ×200
  • Plate 1 x 4 Red Part 3710 Element 371021 ×150
  • Plate 1 x 1 Reddish Brown Part 3024 Element 4221744 ×150
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×100
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×100
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 ×150
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×100
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×100
  • Plate 1 x 1 Yellow Part 3024 Element 302424 ×200
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×200
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×150
  • Plate 2 x 4 Yellow Part 3020 Element 302024 ×100

Tiles 180 pieces

  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×180

Baseplates 6 pieces

  • Baseplate 48 x 48 Light Bluish Gray Part 4186 Element 4278193 or 4219806 ×6

Stickers 1 piece

  • Sticker Sheet for Set SWMP - LEGO Logo for Mosaic [No Color/Any Color] Part stickerupn0009 ×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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