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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.

Shorthair Cat and Kitten

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40441 Shorthair Cat and Kitten

250 pieces in 91 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.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

1 more look-alike pair
  • Tile 1 x 2 with Groove Black ×3 Dark Bluish Gray ×7 Black is darker than Dark Bluish Gray.
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Piece checklist

Dark Bluish Gray 106 pieces

  • Bracket 1 x 1 - 1 x 1 Inverted Dark Bluish Gray Part 36840 Element 6225494 ×4
  • Bracket 1 x 2 - 1 x 2 Inverted Dark Bluish Gray Part 99780 Element 6000606 ×1
  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×2
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×2
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×1
  • Brick Curved 2 x 2 x 2/3 Dark Bluish Gray Part 15068 Element 6071261 Also in Black ×3
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Dark Bluish Gray Part 15571 Element 6076203 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Bluish Gray Part 3040b Element 4211135 ×4
  • Brick Sloped Inverted 45° 2 x 1 Dark Bluish Gray Part 3665 Element 4211096 ×2
  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×8
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Dark Bluish Gray Part 29120 Element 6204668 ×4
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Dark Bluish Gray Part 29119 Element 6204667 ×4
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box Also in Black ×12
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 Also in Black ×4
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 Also in Black ×1
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×7
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×5
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 Also in Black ×2
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×3
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×3
  • Plate 3 x 3 Dark Bluish Gray Part 11212 Element 6039176 ×4
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Plate Round 1 x 1 with Open Stud Dark Bluish Gray Part 85861 Element 6231765 1 spare in the box ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 Also in Black ×3
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×2
  • Tile 1 x 1 with Groove Dark Bluish Gray Part 3070b Element 4210848 1 spare in the box ×1
  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 Also in Black ×7
  • Tile 1 x 3 Dark Bluish Gray Part 63864 Element 4568734 ×3
  • Tile 2 x 3 Dark Bluish Gray Part 26603 Element 6187008 ×3
  • Tile Special 1 x 1 with Clip with Rounded Edges Dark Bluish Gray Part 15712 Element 6344022 or 6071226 ×2

Light Bluish Gray 45 pieces

  • Bracket 1 x 2 - 1 x 4 [Rounded Corners at Bottom, Square Corners at Top] Light Bluish Gray Part 28802 Element 6168615 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×1
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×1
  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×6
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Light Bluish Gray Part 26604 Element 6267495 ×8
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×12
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×2
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×1
  • Tile 1 x 2 with Groove Light Bluish Gray Part 3069b Element 4211414 ×1
  • Tile 1 x 4 with Groove Light Bluish Gray Part 2431 Element 4211356 or 2431194 ×1
  • Tile 2 x 4 with Groove Light Bluish Gray Part 87079 Element 4560183 ×1
  • Tile Round 1 x 1 Quarter Light Bluish Gray Part 25269 Element 6176433 1 spare in the box ×4

Black 36 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Black Part 99207 Element 6000650 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×1
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 Also in Dark Bluish Gray ×1
  • Brick Curved Inverted 2 x 1 Black Part 24201 Element 6147050 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×2
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Bluish Gray ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 Also in Dark Bluish Gray ×3
  • Plate 1 x 3 Black Part 3623 Element 362326 Also in Dark Bluish Gray ×2
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 Also in Dark Bluish Gray ×4
  • Plate 6 x 6 Black Part 3958 Element 395826 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Black Part 15573 Element 6092585 Also in Dark Bluish Gray ×4
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Black Part 41740 Element 6254045 ×1
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 Also in Dark Bluish Gray ×3
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
  • Tile 2 x 4 with Groove Black Part 87079 Element 4560182 ×1
  • Tile Round 1 x 1 with Large and Small White Squares Print (Brickheadz Eye) Black Part 98138pr0060 Element 6284077 or 6178627 1 spare in the box ×4

Dark Turquoise 19 pieces

  • Brick 1 x 2 Dark Turquoise Part 3004 Element 6217659 or 4121500 ×2
  • Brick 1 x 3 Dark Turquoise Part 3622 Element 6213783 ×2
  • Brick 1 x 4 Dark Turquoise Part 3010 Element 6217660 ×1
  • Brick Curved 4 x 1 Double, No Studs Dark Turquoise Part 93273 Element 6249299 ×2
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs Dark Turquoise Part 48092 Element 6213786 ×4
  • Plate 1 x 2 Dark Turquoise Part 3023 Element 6213777 or 4218493 ×5
  • Tile 1 x 2 with Groove Dark Turquoise Part 3069b Element 6213779 or 4164140 ×3

White 18 pieces

  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×2
  • Plate 3 x 3 White Part 11212 Element 6552153 or 6104805 ×1
  • Plate 4 x 8 White Part 3035 Element 6609533 or 303501 ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×2
  • Plate Round Corner 4 x 4 White Part 30565 Element 4178429 ×4
  • Plate Special 1 x 2 Rounded with 2 Open Studs White Part 35480 Element 6552167 or 6550175 ×3
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×4

Yellow 12 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Yellow Part 54200 Element 4504381 or 4283095 1 spare in the box ×2
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×4
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×3
  • Tile Round 1 x 1 Yellow Part 98138 Element 6284577 or 6070714 1 spare in the box ×1

Bright Pink 4 pieces

  • Brick 1 x 1 Bright Pink Part 3005 Element 4286050 or 4245298 ×1
  • Brick 2 x 2 Bright Pink Part 3003 Element 4550359 or 4245307 ×1
  • Tile Round 1 x 1 Quarter Bright Pink Part 25269 Element 6240463 1 spare in the box ×2

Flat Silver 4 pieces

  • Weapon Bladed Claw Spread Flat Silver Part 10187 Element 6004345 1 spare in the box ×4

Green 3 pieces

  • Brick 1 x 1 Green Part 3005 Element 300528 ×1
  • Brick 2 x 2 Green Part 3003 Element 300328 ×2

Blue 2 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×2

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 40441-1 [No Color/Any Color] Part 76952 Element 6335252 ×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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