BlockTalk Find Your Set

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.

Fire Catapult

Checking

391506 Fire Catapult

25 pieces in 14 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

Plates 6 pieces

  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×4
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×1

Technic Connectors 4 pieces

  • Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise Black Part 15100 Element 6073231 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×2

Technic Pins 4 pieces

  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 ×2
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 ×2

Bricks Round and Cones 2 pieces

  • Brick Round 2 x 2 with Axle Hole Trans-Orange Part 3941 Element 6514283 or 6273154 ×2

Bricks Wedged 2 pieces

  • Brick Wedged, Curved 3 x 4 x 2/3 Cutout Red Part 11291 Element 6179656 or 6016772 ×2

Energy Effects 2 pieces

  • Wave / Flame Rounded Single with Pin Bright Light Orange Part 18395 Element 6099396 ×2

Panels 2 pieces

  • Panel 1 x 1 x 1 Corner Red Part 6231 Element 4190219 or 623121 ×2

Bricks Sloped 1 piece

  • Brick Sloped 30° 1 x 2 x 2/3 Orange Part 85984 Element 6068996 or 4648855 ×1

Plates Special 1 piece

  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Bottom Stud Holder Red Part 14769 Element 6066342 ×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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