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.

King Leo's Cart

Checking

1286 King Leo's Cart

18 pieces in 11 part and color combinations, plus 1 minifigure.

The piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

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

Panels 4 pieces

  • Panel 1 x 1 x 1 Corner Light Gray Part 6231 Element 4100379 ×4

Plates Round Curved and Dishes 4 pieces

  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×2

Minifig Shields, Weapons, & Tools 2 pieces

  • Weapon Pike / Spear Round End Brown Part 4497 ×1
  • Weapon Sword / Shortsword Dark Gray Part 3847 Element 4106926 or 384727 ×1

Plates 2 pieces

  • Plate 2 x 4 Black Part 3020 Element 302026 ×2

Plates Special 2 pieces

  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Blue Part 3839b Element 4286615 or 383923 ×1
  • Plate Special 2 x 2 with Wheel Holders Light Gray Part 4600 Element 460002 ×1

Wheels and Tyres 2 pieces

  • Wheel Wagon Small (27mm D.) Brown Part 2470 Element 4248114 or 247075 ×2

Bricks Round and Cones 1 piece

  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×1

Flags, Banners and Signs 1 piece

  • Flag 4 x 1 Wavy [First Wave Left] Blue Part 4495a ×1

Minifigures 1 figure

  • King Leo (Knights Kingdom I) - Lion Shield, Crown Minifigure, checked as a whole figure ×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.