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.

Heart Box

Checking

10909 Heart Box

80 pieces in 39 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.

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Piece checklist

Duplo, Quatro and Primo 80 pieces

  • Duplo Rotor 3 blade, 4 Diameter (Propeller) Black Part 15211 Element 6269088 or 6070162 ×1
  • Duplo Brick 2 x 2 Bright Light Yellow Part 3437 Element 4648231 or 4261816 ×4
  • Duplo Brick 2 x 4 Bright Light Yellow Part 3011 Element 6294939 ×1
  • Duplo Brick 2 x 2 Coral Part 3437 Element 6288480 ×4
  • Duplo Plate 2 x 4 Coral Part 40666 Element 6288476 ×2
  • Duplo Brick 2 x 4 Curved Bottom Dark Azure Part 98224 Element 6294943 ×1
  • Duplo Turntable / Cannon Base 2 x 2 Dark Azure Part 92011 Element 6586832 or 6136369 ×1
  • Duplo Brick 2 x 2 Light Aqua Part 3437 Element 6294237 ×2
  • Duplo Brick 2 x 3 with Curved Bottom Light Aqua Part 98252 Element 6294241 ×2
  • Duplo Plant, Flower with 1 Top Stud Light Aqua Part 6510 Element 6294208 ×1
  • Duplo Brick 2 x 2 Lime Part 3437 Element 4183780 ×6
  • Duplo Brick 2 x 4 Curved Bottom Lime Part 98224 Element 6004979 ×1
  • Duplo Plant, Flower with 1 Top Stud Lime Part 6510 Element 6214736 ×1
  • Duplo Plate 2 x 4 Lime Part 40666 Element 4185178 ×1
  • Duplo Brick 2 x 2 Medium Azure Part 3437 Element 6054619 ×3
  • Duplo Brick 2 x 2 Slope 45° Medium Azure Part 6474 Element 6172514 ×2
  • Duplo Brick 2 x 2 with Eye with White Teardrop Spot / Closed Eye Print Medium Azure Part 3437pr0134 Element 6296029 ×1
  • Duplo Brick 2 x 2 x 1 1/2 with Curved Top Medium Azure Part 11170 Element 6135521 ×1
  • Duplo Brick 2 x 2 x 1 1/2 with Curved Top, Boy with Cap Print Medium Azure Part 11170pr0009 Element 6286339 ×1
  • Duplo Brick 2 x 3 with Curved Top Medium Azure Part 2302 Element 6138111 ×1
  • Duplo Brick 2 x 4 Curved Top Medium Azure Part 98223 Element 6167668 ×1
  • Duplo Plate 2 x 4 Medium Azure Part 40666 Element 6211342 ×3
  • Duplo Brick 2 x 2 Orange Part 3437 Element 4159527 ×2
  • Duplo Brick 2 x 2 Red Part 3437 Element 4583321 or 343721 ×7
  • Duplo Brick 2 x 4 Red Part 3011 Element 4583326 or 4290074 ×1
  • Duplo Brick 4 x 2 Double Slope 45° Red Part 29303 Element 6256703 ×1
  • Duplo Brick 1 x 2 x 2 with Bottom Tube White Part 76371 Element 6101121 ×2
  • Duplo Brick 2 x 2 White Part 3437 Element 343701 ×8
  • Duplo Brick 2 x 4 Curved Top with Cake with Frosting and Sprinkles Print White Part 98223pr0015 Element 6286270 ×1
  • Duplo Brick Round 2 x 2 x 2 White Part 98225 Element 6096680 ×1
  • Duplo Plate 2 x 4 White Part 40666 Element 4250172 or 4160151 ×1
  • Duplo Plate 2 x 6 White Part 98233 Element 6059082 ×1
  • Duplo Brick 2 x 2 Yellow Part 3437 Element 4583546 or 343724 ×7
  • Duplo Brick 2 x 2 x 2 Curved Top with Eye with Teardrop Spot Print Yellow Part 3664pr0015 Element 6296032 ×1
  • Duplo Brick 2 x 3 with Curved Bottom Yellow Part 98252 Element 6167549 ×1
  • Duplo Brick 2 x 4 Curved Bottom Yellow Part 98224 Element 6171865 ×1
  • Duplo Brick 2 x 4 Curved Top Yellow Part 98223 Element 6099784 or 4654826 ×1
  • Duplo Plant, Flower with 1 Top Stud Yellow Part 6510 Element 4100853 ×1
  • Duplo Brick 2 x 2 Yellowish Green Part 3437 Element 6209859 or 4648235 ×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.

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