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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.

Lucky Cat

Checking

40813 Lucky Cat

280 pieces in 110 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

White 162 pieces

  • Bracket 1 x 2 - 1 x 2 White Part 99781 Element 6552141 or 6548275 ×2
  • Bracket 2 x 2 with 1 x 2 Vertical Studs White Part 41682 Element 6615545 or 6250019 ×3
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×5
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×2
  • Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs White Part 49307 Element 6552178 or 6550177 ×8
  • Brick Curved 1 x 2 x 1 No Studs White Part 37352 Element 6552172 or 6248827 ×2
  • Brick Curved 1 x 4 x 2 2/3 White Part 65734 Element 6510201 or 6334838 ×8
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1
  • Brick Curved 2 x 2 x 2/3 White Part 15068 Element 6552147 or 6047220 ×4
  • Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×6
  • Brick Curved 3 x 2 No Studs White Part 24309 Element 6552158 or 6132212 ×3
  • Brick Curved 4 x 1 Double, No Studs White Part 93273 Element 6552143 or 6023806 ×1
  • Brick Curved 4 x 2 No Studs White Part 93606 Element 6552144 or 6031947 ×1
  • Brick Curved Inverted 2 x 2 with 1 x 2 Cutouts White Part 1750 Element 6400127 ×2
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs White Part 48092 Element 6550183 or 6337627 ×2
  • Brick Round Corner 4 x 4 x 3 Quarter Dome Top White Part 49612 Element 6337516 ×2
  • Brick Round Corner 4 x 4 x 3 Quarter Dome Top with Closed Black Eyes, Red Stripes, Bright Pink Cheek, Left White Part 49612pr0004 Element 6529380 ×1
  • Brick Round Corner 4 x 4 x 3 Quarter Dome Top with Closed Black Eyes, Red Stripes, Bright Pink Cheek, Right White Part 49612pr0003 Element 6529379 ×1
  • Brick Round Corner, Curved 3 x 3 x 1 Quarter Circle White Part 76797 Element 6609540 or 6334524 ×2
  • Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome White Part 1871 Element 6442360 ×6
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] White Part 15672 Element 6552150 or 6550153 ×2
  • Brick Sloped Inverted 33° 3 x 1 with Internal Stopper and No Front Stud Connection White Part 4287c Element 6552111 or 428701 ×2
  • Brick Special 1 x 4 with 4 Studs on One Side White Part 30414 Element 6550167 or 4143254 ×4
  • Brick Wedged, Curved 6 x 2 Left, Inner Ridges White Part 41748 Element 6552117 or 4160124 ×1
  • Brick Wedged, Curved 6 x 2 Right, Smooth Inner Walls White Part 5711 Element 6552214 or 6501117 ×1
  • Panel 4 x 4 x 3 Quarter Cylinder White Part 4041 Element 6510116 or 6450265 ×2
  • Plant, Banana White Part 33085 Element 6473453 or 6298929 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×6
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×13
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×4
  • Plate 1 x 5 White Part 78329 Element 6550185 or 6350399 ×6
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×6
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×2
  • Plate Round Corner 4 x 4 White Part 30565 Element 4178429 ×4
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) White Part 15573 Element 6550152 or 6051511 ×1
  • Plate Special 1 x 2 with Clip Horizontal on Side White Part 11476 Element 6313115 or 6070712 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version White Part 4304 Element 6603760 or 6469441 ×7
  • Plate Special 3 x 2 with Rounded End, Hole White Part 3176 Element 6609537 or 6089696 ×1
  • Plate Special 3 x 4 with 1 x 4 Center Studs [Plain] White Part 88646 Element 6550154 or 6132741 ×1
  • Plate Special Round 1 x 2 Half Circle with Stud (Jumper) White Part 1745 Element 6510064 or 6462354 ×2
  • Technic Brick 1 x 1 with Axle Hole White Part 73230 Element 6345886 ×2
  • Technic Brick 1 x 1 with Pin Hole White Part 6541 Element 6609542 or 654101 ×2
  • Technic Pin Connector Round 1L [Beam] White Part 18654 Element 6550155 or 6177114 1 spare in the box ×4
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×3
  • Tile 2 x 4 with Groove White Part 87079 Element 6548271 or 4560178 ×1
  • Tile 4 x 4 Curved, Macaroni White Part 27507 Element 6550142 or 6457244 ×4
  • Tile Round 1 x 1 Quarter White Part 25269 Element 6548285 or 6172366 1 spare in the box ×2
  • Tile Round 1 x 2 Half Circle White Part 1748 Element 6510068 or 6400114 1 spare in the box ×2
  • Tile Round 2 x 2 Half Circle White Part 5520 Element 6541091 or 6494548 ×1
  • Tile Round 2 x 4 White Part 66857 Element 6329902 ×1
  • Tile Special 2 x 2 Inverted White Part 11203 Element 6564913 or 6013866 ×1
  • Wedge Plate 2 x 2 Left White Part 24299 Element 6552156 or 6132203 ×1
  • Wedge Plate 2 x 2 Right White Part 24307 Element 6552157 or 6132204 ×1
  • Wedge Plate 3 x 3 Cut Corner White Part 2450 Element 6601842 or 4280148 ×2
  • Window 1 x 4 x 3 without Shutter Tabs White Part 60594 Element 4530590 or 4520702 ×1

Red 33 pieces

  • Bracket 1 x 2 - 1 x 2 Red Part 99781 Element 6319330 ×4
  • Bracket 1 x 2 - 1 x 2 Inverted Red Part 99780 Element 6089698 ×4
  • Brick Curved 3 x 1 No Studs Red Part 50950 Element 4251162 ×4
  • Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs Red Part 48092 Element 6368331 or 4215466 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Red Part 54200 Element 5074621 or 4504379 1 spare in the box ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×5
  • Plate 1 x 4 Red Part 3710 Element 371021 ×2
  • Plate 1 x 6 Red Part 3666 Element 366621 ×1
  • Plate 8 x 8 with Rounded End Red Part 41948 Element 6471614 ×1
  • Plate Round Corners 2 x 6 Double Red Part 18980 Element 6108802 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Red Part 15573 Element 6092565 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Red Part 60478 Element 4515365 ×2
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version Red Part 4304 Element 6469446 ×2
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×1

Medium Azure 21 pieces

  • Brick Special 1 x 2 with 2 Studs on 1 Side Medium Azure Part 11211 Element 6348142 ×3
  • Plate 1 x 2 Medium Azure Part 3023 Element 6603337 or 6097419 ×18

Tan 16 pieces

  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×1
  • Brick Curved Inverted 2 x 2 x 2/3 Tan Part 32803 Element 6517736 ×2
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×4
  • Plate 1 x 8 Tan Part 3460 Element 4114324 or 346005 ×1
  • Plate 2 x 3 Tan Part 3021 Element 4118790 or 302105 ×5
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×1
  • Tile Round 2 x 4 Tan Part 66857 Element 6294716 ×2

Light Bluish Gray 12 pieces

  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×3
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Plate 3 x 3 Light Bluish Gray Part 11212 Element 6015347 ×1
  • Plate 8 x 8 with Rounded End Light Bluish Gray Part 41948 Element 6474254 ×1
  • Technic Axle 9 Light Bluish Gray Part 60485 Element 4535768 ×1
  • Technic Beam 1 x 4 Thin Light Bluish Gray Part 32449 Element 6370947 or 6074036 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×1
  • Wheel 18mm x 14mm with Axle Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55982 Element 4490127 ×1

Yellow 9 pieces

  • Plate 1 x 1 Yellow Part 3024 Element 302424 1 spare in the box ×4
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Half Hollow Anti-stud] - Updated Version Yellow Part 4304 Element 6469455 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Yellow Part 32123b Element 6271167 or 3212324 1 spare in the box ×3

Metallic Gold 6 pieces

  • Tile 1 x 2 with Groove Metallic Gold Part 3069b Element 6546117 or 6265247 ×2
  • Tile 2 x 2 Curved, Macaroni Metallic Gold Part 27925 Element 6546120 or 6294524 ×4

Dark Bluish Gray 5 pieces

  • Plate 2 x 8 Dark Bluish Gray Part 3034 Element 4210997 ×2
  • Plate 4 x 4 Dark Bluish Gray Part 3031 Element 4243831 or 4211089 ×1
  • Tile 3 x 3 Curved, Macaroni Dark Bluish Gray Part 79393 Element 6393306 ×2

Black 4 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate Special 1 x 2, Top Clip [Open O] Black Part 44861 Element 6347310 ×2
  • Tyre 30.4 x 14 VR Solid Black Part 58090 Element 6601610 or 4550937 ×1

Bright Pink 4 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Bright Pink Part 4032a Element 6498749 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Bright Pink Part 2654 Element 6423955 or 6139480 ×2

Lime 3 pieces

  • Plate 1 x 4 Lime Part 3710 Element 4187743 or 4122441 ×1
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×1
  • Technic Axle Connector Smooth [with x Hole + Orientation] Lime Part 59443 Element 6302735 ×1

Pearl Gold 2 pieces

  • Weapon Bladed Claw Spread Pearl Gold Part 10187 Element 6241936 1 spare in the box ×2

Bright Light Orange 1 piece

  • Technic Ball Joint Bright Light Orange Part 32474 Element 6071608 ×1

Magenta 1 piece

  • Tile Round 1 x 1 Quarter Magenta Part 25269 Element 6199889 1 spare in the box ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 40813-1 [No Color/Any Color] Part 10111562 Element 6529369 ×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.

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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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