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.

UFO

Checking

40330 UFO

36 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.

Show

Piece checklist

Dark Bluish Gray 8 pieces

  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 15392 Element 6051334 1 spare in the box ×2
  • Plate Special 1 x 2 with Pin Hole on Top Dark Bluish Gray Part 11458 Element 6019987 ×2
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×2
  • Wedge Plate 2 x 4 Dark Bluish Gray Part 51739 Element 4527082 ×2

Black 7 pieces

  • Launcher, Weapon Gun / Blaster / Shooter Mini Black Part 15391 Element 6051331 ×2
  • Plate Round 4 x 4 with 2 x 2 Round Opening Black Part 11833 Element 6167800 or 6045912 ×1
  • Plate Round 6 x 6 with Hole Black Part 11213 Element 6187587 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Black Part 60897 Element 6330189 or 4617547 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×1

Metallic Silver 4 pieces

  • Plate Round 1 x 1 with Solid Stud Metallic Silver Part 6141 Element 51809301 or 6546105 1 spare in the box ×4

Trans-Clear 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 1 spare in the box ×3
  • Windscreen 4 x 4 x 1 2/3 Canopy Half Sphere with Handle Trans-Clear Part 18990 Element 6514145 or 6244781 ×1

Trans-Red 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×4

Trans-Yellow 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×4

Lime 3 pieces

  • Minifig Head [Plain] [Hollow Stud] Lime Part 3626c Element 6020199 or 4614249 ×1
  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 1 spare in the box ×1
  • Plate Round 4 x 4 with 2 x 2 Round Opening Lime Part 11833 Element 6167801 or 6062087 ×1

Dark Purple 1 piece

  • Plate Round 6 x 6 with Hole Dark Purple Part 11213 Element 6377007 or 6216908 ×1

Trans-Orange 1 piece

  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×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.