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.

Mechanical Toy Shop

Checking

9653 Mechanical Toy Shop

32 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

Yellow 13 pieces

  • Duplo Plate 2 x 4 x 1/2 with 4 Center Studs [Thick] Yellow Part 6413 Element 641324 ×1
  • Duplo Support Brick 2 x 4 x 3 Yellow Part 4537 Element 73378 ×2
  • Duplo Technic Beam 7 Yellow Part 6524 Element 652424 ×2
  • Duplo Technic Crank Handle Yellow Part 6526 Element 4493718 or 652624 ×3
  • Duplo Technic Wedge Belt Wheel Yellow Part 6527 Element 6124039 or 4600513 ×5

Red 11 pieces

  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×2
  • Duplo Brick 2 x 3 with Curved Top Red Part 2302 Element 230271 or 230221 ×3
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×2
  • Duplo Technic Brick 2 x 10 with 9 holes Red Part 6515 Element 6182717 or 4630364 ×2
  • Duplo Technic Brick 2 x 4 with 3 Holes Red Part 6517 Element 6182716 or 4621141 ×2

Green 4 pieces

  • Duplo 2 x 2 x 2 Figure Brick, Rounded Bangs, Dark Orange Hair, Collar, Hearts Print Green Part 2327c02pr0002 ×1
  • Duplo Plate 6 x 12 Green Part 4196 Element 419628 ×1
  • Duplo Technic Axle 8 Green Part 6521 Element 4105244 or 652128 ×2

Blue 2 pieces

  • Duplo 2 x 2 x 2 Figure Brick, Spiky Bangs, Red Hair, Suspenders, Freckle Nose Print Blue Part 2327c01pr0010 Element 75414 ×1
  • Rubber Belt Extra Large (Round Cross Section) - Approx. 7 x 7 Blue Part 71059 Element 71059 ×1

Light Gray 2 pieces

  • Duplo Technic Axle 6 Light Gray Part 6522 Element 652202 ×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.