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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.

Pool Foam Slide

Checking

30401 Pool Foam Slide

40 pieces in 25 part and color combinations, plus 1 minifigure.

LEGO counts 40 pieces. This inventory comes from a separate parts catalog and lists 45, including the 5 parts inside the minifigures; 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.

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Piece checklist

Medium Azure 9 pieces

  • Brick 1 x 4 Medium Azure Part 3010 Element 6603319 or 6036238 ×1
  • Brick Curved 2 x 2 x 2/3 Medium Azure Part 15068 Element 6119126 ×8

Dark Pink 6 pieces

  • Plant, Flower, Plate Round 1 x 1 with 4 Petals Dark Pink Part 33291 Element 6170298 or 4216479 1 spare in the box ×4
  • Plate 1 x 8 Dark Pink Part 3460 Element 6548252 or 6397991 ×2

Lime 6 pieces

  • Brick Sloped 30° 1 x 2 x 2/3 Lime Part 85984 Element 6025026 ×1
  • Brick Special 1 x 1 with Stud on 1 Side Lime Part 87087 Element 6073026 or 4566860 ×1
  • Plant, Cherries Lime Part 22667 Element 6087084 or 6062387 1 spare in the box ×1
  • Plate 2 x 3 Lime Part 3021 Element 6013793 or 6013579 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Lime Part 15573 Element 6092592 ×1

White 6 pieces

  • Brick Special 1 x 1 with Stud on 1 Side White Part 87087 Element 6550190 or 4558952 ×2
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×2

Dark Purple 4 pieces

  • Brick Round 2 x 2 with Axle Hole Dark Purple Part 3941 Element 4622176 ×1
  • Plate 1 x 2 Dark Purple Part 3023 Element 4655695 or 4589622 ×1
  • Plate 2 x 2 Corner Dark Purple Part 2420 Element 6167461 or 4225179 ×2

Bright Light Orange 3 pieces

  • Dish 4 x 4 Inverted [Radar] Bright Light Orange Part 3960 Element 6003002 ×1
  • Plate Round 4 x 4 with 2 x 2 Round Opening Bright Light Orange Part 11833 Element 6167802 or 6097037 ×1
  • Plate Special 1 x 2 with Ladder Bright Light Orange Part 4175 Element 6489353 or 6285247 ×1

Light Bluish Gray 2 pieces

  • Antenna 1 x 4 with Flat Top Light Bluish Gray Part 3957b Element 4211473 ×1
  • Hinge Brick 2 x 2 Top Plate Thin Light Bluish Gray Part 6134 Element 4211881 ×1

Trans-Clear 2 pieces

  • Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1
  • Plate Round 4 x 4 with 2 x 2 Round Opening Trans-Clear Part 11833 Element 6507890 or 6173802 ×1

Dark Bluish Gray 1 piece

  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×1

Red 1 piece

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×1

Minifigures 1 figure

  • Emma - Lime Bikini, Dark Pink Skirt Minifigure, checked as a whole figure ×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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