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.

Cat Tree with Kitten

Checking

562504 Cat Tree with Kitten

21 pieces in 16 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

Orange 5 pieces

  • Animal, Fish [Hollow Stud Mouth] Orange Part 64648 Element 4623481 ×1
  • Plate 1 x 6 Orange Part 3666 Element 4173332 or 4122466 ×1
  • Plate Round Corners 2 x 6 Double Orange Part 18980 Element 6301806 or 6173923 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Orange Part 2540 Element 4190164 or 4163269 ×2

Tan 5 pieces

  • Brick Round 2 x 2 [Grill] Tan Part 92947 Element 4650647 or 4612717 ×3
  • Technic Brick 1 x 2 [1 Pin Hole] Tan Part 3700 Element 4205107 or 370005 ×2

Bright Light Yellow 2 pieces

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Bright Light Yellow Part 87580 Element 6375350 or 6264955 ×2

Dark Pink 2 pieces

  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Pink Part 35480 Element 6271374 ×1
  • Wool / Yarn Dark Pink Part 6900 Element 6509764 ×1

Medium Nougat 2 pieces

  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Medium Nougat Part 32828 Element 6433634 ×1
  • Tile Round 1 x 1 with Animal Track Print Medium Nougat Part 98138pr0056 Element 6287856 or 6152676 ×1

White 2 pieces

  • Flag 2 x 2 Square, Flared Clip Edge [Thick Clips] White Part 80326 Element 6365487 ×1
  • Technic Pin 1/2 without Friction Ridges White Part 4274 Element 6552190 or 6388018 ×1

Black 1 piece

  • Animal, Cat, Kitten Sitting with Yellow Eyes, Dark Pink Tongue Print Black Part 69902pr0004 Element 6520727 ×1

Trans-Light Blue 1 piece

  • Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 ×1

Yellow 1 piece

  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×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.