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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.

Explore Baby Stack 'n' Learn Set

Checking

9019 Explore Baby Stack 'n' Learn Set

73 pieces in 15 part and color combinations.

LEGO counts 69 pieces. This inventory comes from a separate parts catalog and lists 73; the two do not always count the same elements, so their totals differ. 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.

Show

Piece checklist

Duplo, Quatro and Primo 69 pieces

  • Primo Brick 1 x 1 Blue Part 31000 Element 4142220 or 4112265 ×13
  • Primo Brick 1 x 2 Blue Part 31001 Element 4142223 or 4112258 ×4
  • Primo Brick 1 x 1 Bright Green Part 31000 Element 4157962 ×13
  • Primo Brick 1 x 2 Bright Green Part 31001 Element 4165464 ×3
  • Primo Wheel Base 1 x 2 with Hitches and Red Wheels Bright Green Part 31605c02 Element 4155283 or 4155281 ×1
  • Primo Wheel Base 1 x 2 with Hitches and Red Wheels Medium Blue Part 31605c02 Element 4155282 or 4155280 ×1
  • Primo Brick 1 x 1 Red Part 31000 Element 4223135 or 4142219 ×13
  • Primo Brick 1 x 2 Red Part 31001 Element 4142226 or 4112261 ×4
  • Primo Brick 1 x 1 Yellow Part 31000 Element 4225981 or 4142221 ×13
  • Primo Brick 1 x 1 with Lego Logo Print Yellow Part 31000pr0001 Element 4142212 or 4108056 ×1
  • Primo Plate 3 x 3 Yellow Part 31012 Element 4165463 ×3

Non-Buildable Figures (Duplo, Fabuland, etc) 4 pieces

  • Primo Figure Boy with Red Base, Glasses and Green Cap (Timmy) Blue Part 76081pr0001 Element 4261193 ×1
  • Primo Figure Boy with Red Base, Red Suspenders Print, Brown Hair Green Part 75595c02pr0002 Element 4261490 or 4261179 ×1
  • Primo Figure Boy with Blue Base, Blue Dungarees Print, Green Cap Lime Part 76081pr0005 Element 4261182 ×1
  • Primo Figure Girl with Green Base, Daisy Print, Brown Hair Red Part 76080c01pr0001 Element 4261189 or 4261187 ×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.

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