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.

Frankenstein's Monster

Checking

6437453 Frankenstein's Monster

59 pieces in 22 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

Lime 36 pieces

  • Brick Curved Inverted 2 x 1 Lime Part 24201 Element 6210413 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Lime Part 54200 Element 4504372 or 4298015 ×10
  • Brick Sloped 45° 2 x 2 Lime Part 3039 Element 4650630 or 4212554 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Lime Part 87087 Element 6073026 or 4566860 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Lime Part 11211 Element 6208291 ×4
  • Plate 1 x 2 Lime Part 3023 Element 4164037 or 4122439 ×4
  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×1
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×2
  • Plate 2 x 3 Lime Part 3021 Element 6013793 or 6013579 ×1
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×5
  • Plate 2 x 6 Lime Part 3795 Element 4621548 or 4563344 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Lime Part 3700 Element 6132372 ×2

Black 12 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×4
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3

Light Bluish Gray 5 pieces

  • Plate Special 1 x 2 with Handle on End [Closed Ends] Light Bluish Gray Part 60478 Element 4515369 ×3
  • Technic Axle and Pin Connector Angled #1 Light Bluish Gray Part 32013 Element 6296859 or 4211550 ×2

Blue 2 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×2

Bright Light Orange 2 pieces

  • Plate Round 1 x 1 with Solid Stud Bright Light Orange Part 6141 Element 6331261 or 4215422 ×2

White 2 pieces

  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 ×2

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.