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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.

Unikitty Cloud Car

Checking

41451 Unikitty Cloud Car

87 pieces in 53 part and color combinations, plus 3 minifigures.

LEGO counts 126 pieces. This inventory comes from a separate parts catalog and lists 128, including the 41 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

Bricks Curved 18 pieces

  • Brick Arch 1 x 3 x 2 Curved Top Dark Purple Part 6005 Element 6097497 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Light Aqua Part 6091 Element 6411361 or 6097304 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Aqua Part 11477 Element 6141593 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Magenta Part 6091 Element 6331922 or 6109953 ×2
  • Brick Arch 1 x 3 x 2 Curved Top White Part 6005 Element 4629913 or 4502026 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2
  • Brick Curved 2 x 2, Two Top Studs White Part 30165 Element 6609535 or 4624989 ×2
  • Brick Curved 4 x 1 Double, No Studs White Part 93273 Element 6552143 or 6023806 ×2
  • Brick Curved Inverted 2 x 1 White Part 24201 Element 6601928 or 6172927 ×2

Plates 12 pieces

  • Plate 1 x 2 Light Aqua Part 3023 Element 6146701 or 6015054 ×4
  • Plate 4 x 6 Light Aqua Part 3032 Element 6400081 or 6186659 ×1
  • Plate 1 x 1 Magenta Part 3024 Element 6096942 or 6014499 1 spare in the box ×2
  • Plate 1 x 2 Medium Azure Part 3023 Element 6603337 or 6097419 ×2
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1

Plates Special 11 pieces

  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Black Part 32828 Element 6196548 1 spare in the box ×2
  • Plate Special 1 x 1 with Tooth Bright Light Orange Part 49668 Element 4282860 ×4
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Medium Azure Part 18674 Element 6136419 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted White Part 99207 Element 6552151 or 6548279 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] White Part 60897 Element 6330191 or 4613256 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] White Part 2540 Element 4140583 or 254051 ×1

Plates Round Curved and Dishes 9 pieces

  • Plate Round Half 3 x 6 with 1 x 2 Cutout Lime Part 18646 Element 6109765 ×1
  • Dish 3 x 3 Inverted [Radar] Magenta Part 43898 Element 6217587 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Purple Part 4740 Element 6580379 or 6245309 ×2
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×4

Tiles 5 pieces

  • Tile 1 x 1 with Groove Dark Purple Part 3070b Element 6167457 1 spare in the box ×2
  • Tile 2 x 2 with Groove Light Aqua Part 3068b Element 6192270 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×1

Tiles Round and Curved 5 pieces

  • Tile 2 x 2 Curved, Macaroni Light Aqua Part 27925 Element 6199894 ×2
  • Tile Round 1 x 1 with Cookie Print Medium Nougat Part 98138pr0018 Element 6287854 or 6055384 1 spare in the box ×2
  • Tile Round 2 x 2 with Smiley Face Blushes Yellow Part 14769pr1106 Element 6227106 ×1

Bricks Special 4 pieces

  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides White Part 26604 Element 6224811 ×2
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×2

Plants & Trees 4 pieces

  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×1
  • Plant, Plate 1 x 1 Round with 3 Leaves Bright Green Part 32607 Element 6182261 ×1
  • Plant, Apple Red Part 33051 Element 6054438 or 4119487 ×1
  • Plant, Flower 2 x 2 - Round [Solid Stud] Yellow Part 98262 Element 6000022 ×1

Projectiles / Launchers 4 pieces

  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 15392 Element 6051334 ×2
  • Launcher, Weapon Gun / Blaster / Shooter Mini White Part 15391 Element 6076599 ×2

Bricks 3 pieces

  • Brick 1 x 1 Medium Azure Part 3005 Element 6603285 or 4619652 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1

Plates Wedged 3 pieces

  • Wedge Plate 3 x 2 Left Red Part 43723 Element 4372321 or 4180533 ×1
  • Wedge Plate 3 x 2 Left White Part 43723 Element 6552121 or 4179875 ×1
  • Wedge Plate 3 x 2 Right White Part 43722 Element 6552120 or 4179874 ×1

Bars, Ladders and Fences 2 pieces

  • Bar 4L (Lightsaber Blade / Wand) White Part 30374 Element 6116602 or 4129836 ×1
  • Bar Holder with Clip Yellow Part 11090 Element 6341463 or 6015892 ×1

Hinges, Arms and Turntables 2 pieces

  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×1
  • Turntable 2 x 2 Plate, Base White Part 3680 Element 368001 ×1

Containers 1 piece

  • Box / Crate with Handholds 3 x 4 x 1 2/3 Medium Nougat Part 30150 Element 6035734 ×1

Flags, Banners and Signs 1 piece

  • Flag 2 x 2 Trapezoid with Flat Area between Clips Red Part 44676 Element 6134627 ×1

Minifig Accessories 1 piece

  • Equipment Dish / Plate / Bowl 3 x 3 [Plain] Bright Light Orange Part 6256 Element 4243920 ×1

Rock 1 piece

  • Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×1

Technic Special 1 piece

  • Technic Brick 1 x 2 with Hole and Dual Beam Extensions Dark Bluish Gray Part 85943 Element 6324639 or 4547958 ×1

Minifigures 3 figures

  • Unikitty, Dark Azure Foot, Open Mouth, Small Pupils Minifigure, checked as a whole figure ×1
  • Fee Bee Minifigure, checked as a whole figure ×1
  • Square Bear 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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