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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.

Playful Cat

Checking

31163 Playful Cat

407 pieces in 138 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 109 pieces

  • Bracket 1 x 1 - 1 x 1 White Part 36841 Element 6548291 or 6296132 ×8
  • Bracket 1 x 2 - 1 x 2 Inverted White Part 99780 Element 6548278 or 6070698 ×5
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×6
  • Brick Arch 1 x 6 Raised Arch White Part 92950 Element 6601942 or 4620761 ×2
  • Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs White Part 49307 Element 6552178 or 6550177 ×8
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×2
  • Brick Curved 2 x 1 with Inverted Cutout White Part 78666 Element 6550186 or 6346616 ×2
  • Brick Curved 3 x 2 No Studs White Part 24309 Element 6552158 or 6132212 ×2
  • Brick Curved Inverted 2 x 2 x 2/3 White Part 32803 Element 6210385 ×2
  • Brick Round 2 x 2 Dome Top, Vented Stud White Part 3262 Element 6429053 ×1
  • Brick Round Curved 1 x 1 x 1 1/3 Quarter Dome White Part 1871 Element 6442360 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×6
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] White Part 15672 Element 6552150 or 6550153 ×4
  • Brick Special 1 x 2 Palisade [aka Log] White Part 30136 Element 6552148 or 6059185 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×5
  • Brick Special 1 x 2 with Rotation Joint Pin White Part 4920 Element 6472887 ×2
  • Plant, Flower Stem with Bottom Bar White Part 24855 Element 6334087 1 spare in the box ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×4
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×4
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×1
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×4
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×4
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 3 x 3 Corner White Part 77844 Element 6548294 or 6428165 ×2
  • Plate 4 x 4 White Part 3031 Element 6552127 or 4243812 ×1
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×1
  • Plate Round Corners 2 x 6 Double White Part 18980 Element 6147792 ×1
  • Plate Special 1 x 1 x 2/3 Half Round with Side Stud White Part 3386 Element 6552210 or 6550140 ×6
  • Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper) White Part 34103 Element 6550171 or 6195371 ×2
  • Plate Special Round 1 x 2 Half Circle with Stud (Jumper) White Part 1745 Element 6510064 or 6462354 ×1
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes White Part 67696 Element 6360826 ×1
  • Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball White Part 57909b Element 6307640 or 6146939 ×1
  • Technic Pin 1/2 without Friction Ridges White Part 4274 Element 6552190 or 6388018 1 spare in the box ×1
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×8
  • Tile Round 1 x 2 Half Circle White Part 1748 Element 6510068 or 6400114 1 spare in the box ×3

Light Bluish Gray 108 pieces

  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×4
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×2
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×2
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×2
  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×5
  • Brick Curved 3 x 1 No Studs Light Bluish Gray Part 50950 Element 4251163 ×6
  • Brick Curved 3 x 2 No Studs Light Bluish Gray Part 24309 Element 6132207 ×3
  • Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×8
  • Brick Curved, 3 x 1 with 1/3 Inverted Cutout Light Bluish Gray Part 70681 Element 6329117 ×2
  • Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [LONG] Light Bluish Gray Part 5489 Element 6529499 ×1
  • Brick Round Corner, Curved 2 x 2 x 2/3 Quarter Circle With 1 x 1 Bottom Cutout Light Bluish Gray Part 5852 Element 6529502 ×12
  • Brick Round Corner, Curved 3 x 3 x 1 Quarter Circle Light Bluish Gray Part 76797 Element 6407412 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Light Bluish Gray Part 85984 Element 4568637 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Light Bluish Gray Part 15672 Element 6093859 ×2
  • Brick Sloped 45° 2 x 2 Light Bluish Gray Part 3039 Element 4211410 ×2
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Light Bluish Gray Part 26604 Element 6267495 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side Light Bluish Gray Part 11211 Element 6015344 ×4
  • Brick Wedged, Curved 2 x 1 with Stud Notch Left Light Bluish Gray Part 29120 Element 6225139 ×4
  • Brick Wedged, Curved 2 x 1 with Stud Notch Right Light Bluish Gray Part 29119 Element 6225142 ×4
  • Brick Wedged, Curved 3 x 2 with Stud Notch Left Light Bluish Gray Part 80177 Element 6375808 ×1
  • Brick Wedged, Curved 3 x 2 with Stud Notch Right Light Bluish Gray Part 80178 Element 6375815 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×14
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×4
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 6 Light Bluish Gray Part 3795 Element 4211452 or 3795194 ×1
  • Plate Round Corner 3 x 3 Light Bluish Gray Part 30357 Element 4645412 or 4211756 ×2
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×5
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Light Bluish Gray Part 18674 Element 6183782 ×2
  • Technic Axle Towball Light Bluish Gray Part 2736 Element 6443149 or 4211375 ×1
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 1 spare in the box ×2
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×1
  • Tile Round 2 x 4 Light Bluish Gray Part 66857 Element 6529500 ×2

Dark Bluish Gray 81 pieces

  • Bracket 1 x 1 - 1 x 2 Inverted Dark Bluish Gray Part 73825 Element 6336390 ×2
  • Bracket 1 x 2 - 2 x 2 Dark Bluish Gray Part 44728 Element 6117972 or 6048854 ×2
  • Brick 2 x 3 Dark Bluish Gray Part 3002 Element 4211105 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Dark Bluish Gray Part 11477 Element 6029948 ×10
  • Brick Curved 3 x 1 No Studs Dark Bluish Gray Part 50950 Element 4246896 ×4
  • Brick Curved Inverted 2 x 2 x 2/3 Dark Bluish Gray Part 32803 Element 6344820 ×4
  • Brick Curved Inverted 4 x 1 Dark Bluish Gray Part 13547 Element 6177704 ×2
  • Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [LONG] Dark Bluish Gray Part 5489 Element 6501698 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×4
  • Brick Special 1 x 2 x 1 1/3 with Rotation Joint Socket Dark Bluish Gray Part 80431 Element 6398662 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, without Groove, 7 Teeth Dark Bluish Gray Part 54657 Element 6267047 ×2
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box ×12
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×6
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×16
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Plate Special 1 x 2 with 5.9mm Centre Side Towball Dark Bluish Gray Part 14417 Element 6414560 or 6338160 ×2
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×4
  • Plate Special 2 x 6 x 2/3 with 4 Studs on Side, 3 Support Walls on Bottom Dark Bluish Gray Part 72132 Element 6401210 ×2
  • Wedge Plate 2 x 2 Cut Corner Dark Bluish Gray Part 26601 Element 6164073 ×2

Medium Azure 18 pieces

  • Brick 1 x 6 Medium Azure Part 3009 Element 6603286 or 4619653 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Medium Azure Part 11477 Element 6603334 or 6071246 ×2
  • Brick Curved 3 x 1 No Studs Medium Azure Part 50950 Element 6035598 ×1
  • Brick Special 1 x 2 with 2 Studs on 1 Side Medium Azure Part 11211 Element 6348142 ×1
  • Plate 2 x 3 Medium Azure Part 3021 Element 6604733 or 6013828 ×3
  • Plate Round 1 x 1 with Solid Stud Medium Azure Part 6141 Element 6102986 1 spare in the box ×4
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Medium Azure Part 60897 Element 6445843 ×2
  • Tile Round 2 x 2 with Bottom Stud Holder Medium Azure Part 14769 Element 6145255 ×2
  • Wedge Plate 2 x 2 Left Medium Azure Part 24299 Element 6296842 ×1
  • Wedge Plate 2 x 2 Right Medium Azure Part 24307 Element 6296840 ×1

Reddish Orange 18 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Reddish Orange Part 11477 Element 6468286 ×1
  • Brick Curved 4 x 1 Double, No Studs Reddish Orange Part 93273 Element 6529629 ×9
  • Brick Curved Inverted 2 x 2 x 2/3 Reddish Orange Part 32803 Element 6529630 ×2
  • Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end Reddish Orange Part 25214 Element 6529503 ×3
  • Plate Special 1 x 2 with Pin Hole on Top Reddish Orange Part 11458 Element 6529504 ×1
  • Technic Pin Connector Round [Slotted] Reddish Orange Part 62462 Element 6474012 ×2

Black 12 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×2
  • Brick Special 1 x 2 x 2/3 with Studs on Sides Black Part 4595 Element 6681661 or 4523339 ×1
  • Equipment Whip - Bent Black Part 88704 Element 6359865 or 6092878 1 spare in the box ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Black Part 30383 Element 6338799 or 4144575 ×2
  • Plate Special 1 x 1 with Handle on 2 Ends Black Part 78257 Element 6398391 ×1
  • Tile Round 1 x 1 Quarter Black Part 25269 Element 6172383 1 spare in the box ×1
  • Tile Round 1 x 1 with White Dot/Circle/Eye Print Black Part 98138pr0107 Element 6284072 or 6253831 1 spare in the box ×2
  • Tile Round 2 x 2 with White Circles, Medium Blue Crescent Shape / Eye Print Black Part 14769pr9968 Element 6522854 ×2

Red 10 pieces

  • Brick Special 1 x 2 with Studs on 2 Sides Red Part 52107 Element 4569056 ×2
  • Plate 1 x 1 x 2/3 with Open Stud Red Part 86996 Element 6397571 ×4
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4

Orange 9 pieces

  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×1
  • Plate 2 x 4 Orange Part 3020 Element 4158355 or 4122468 ×5
  • Tile 1 x 2 with Groove Orange Part 3069b Element 4188771 ×2
  • Tile Round 1 x 1 Orange Part 98138 Element 6284582 or 6009459 1 spare in the box ×1

Bright Pink 8 pieces

  • Plate 1 x 1 Bright Pink Part 3024 Element 6031883 or 4599540 1 spare in the box ×1
  • Plate 1 x 2 Bright Pink Part 3023 Element 4654128 or 4245303 ×3
  • Tile Round 2 x 2 with Bottom Stud Holder Bright Pink Part 14769 Element 6092768 ×4

Tan 7 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×4
  • Tile Round 1 x 1 Tan Part 98138 Element 6284573 or 6139649 1 spare in the box ×3

Yellow 7 pieces

  • Bracket 1 x 2 - 2 x 4 Yellow Part 93274 Element 6118828 or 4613344 ×1
  • Brick Round Corner 3 x 3 x 1 No Studs Yellow Part 65617 Element 6439824 ×4
  • Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides Yellow Part 67329 Element 6310247 ×2

Dark Turquoise 5 pieces

  • Brick and Axle Separator v2.0 Dark Turquoise Part 96874 Element 6254100 ×1
  • Plate 1 x 2 Dark Turquoise Part 3023 Element 6213777 or 4218493 ×3
  • Plate 2 x 2 Dark Turquoise Part 3022 Element 6249390 or 4170141 ×1

Lime 5 pieces

  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×3
  • Plate 2 x 2 Lime Part 3022 Element 4613977 or 4537937 ×1
  • Plate 2 x 4 Lime Part 3020 Element 4537936 or 4534667 ×1

Dark Orange 3 pieces

  • Tile 1 x 1 Heart Dark Orange Part 39739 Element 6502193 or 6467786 1 spare in the box ×3

Magenta 3 pieces

  • Plate 1 x 2 Magenta Part 3023 Element 6103415 or 6020605 ×2
  • Plate 2 x 2 Magenta Part 3022 Element 6109930 or 6091599 ×1

Reddish Brown 3 pieces

  • Tile Round 1 x 1 Reddish Brown Part 98138 Element 6284586 or 6133854 1 spare in the box ×3

Bright Light Orange 1 piece

  • Plate Round 6 x 6 with Hole Bright Light Orange Part 11213 Element 6131694 ×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

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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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