BlockTalk Find Your Set

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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.

Maze

Checking

21305 Maze

769 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

Tan 244 pieces

  • Bracket 1 x 2 - 2 x 2 Tan Part 44728 Element 6117975 or 6048857 ×8
  • Brick 1 x 12 Tan Part 6112 Element 6075179 or 4114049 ×15
  • Brick 1 x 16 Tan Part 2465 Element 4295313 or 4165812 ×7
  • Brick 1 x 3 Tan Part 3622 Element 4162465 or 4113920 ×5
  • Brick 1 x 4 Tan Part 3010 Element 4113916 or 301005 ×6
  • Brick 1 x 6 Tan Part 3009 Element 4112982 or 300905 ×8
  • Brick 1 x 8 Tan Part 3008 Element 4159774 or 4124002 ×2
  • Brick 2 x 2 Corner Tan Part 2357 Element 4124455 or 4112541 ×6
  • Brick Special 1 x 2 Palisade [aka Log] Tan Part 30136 Element 4218749 or 4114053 ×19
  • Brick Special 1 x 4 with 4 Studs on One Side Tan Part 30414 Element 4201062 or 4177990 ×2
  • Plate 1 x 10 Tan Part 4477 Element 4143409 or 447705 ×12
  • Plate 1 x 12 Tan Part 60479 Element 6156462 ×2
  • Plate 1 x 4 Tan Part 3710 Element 4113233 or 371005 ×3
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×5
  • Plate 1 x 8 Tan Part 3460 Element 4114324 or 346005 ×3
  • Plate 2 x 4 Tan Part 3020 Element 4114309 or 302005 ×1
  • Plate 6 x 6 Tan Part 3958 Element 4125217 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Tan Part 3749 Element 4666579 or 4186017 ×4
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×3
  • Technic Brick 1 x 2 [2 Pin Holes] Tan Part 32000 Element 4523145 or 4143352 ×3
  • Tile 1 x 1 with Groove Tan Part 3070b Element 4125253 1 spare in the box ×6
  • Tile 1 x 2 with Groove Tan Part 3069b Element 4114026 ×20
  • Tile 1 x 3 Tan Part 63864 Element 6131896 ×24
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×9
  • Tile 1 x 8 with Groove Tan Part 4162 Element 4544139 or 4519964 ×18
  • Tile 2 x 2 with Groove Tan Part 3068b Element 4185177 or 4114002 ×7
  • Tile 2 x 4 with Groove Tan Part 87079 Element 6122047 or 4610209 ×45

Black 180 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×1
  • Brick 1 x 12 Black Part 6112 Element 611226 ×9
  • Brick 1 x 2 Black Part 3004 Element 300426 ×8
  • Brick 1 x 3 Black Part 3622 Element 362226 ×4
  • Brick 1 x 6 Black Part 3009 Element 300926 ×7
  • Brick 1 x 8 Black Part 3008 Element 300826 ×3
  • Brick 2 x 10 Black Part 3006 Element 4617860 or 300626 ×8
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×7
  • Brick 2 x 4 Black Part 3001 Element 300126 ×7
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×4
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×10
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×13
  • Brick Sloped 45° 2 x 2 Double Black Part 3043 Element 4163373 or 304326 ×1
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 1 x 4 Black Part 3710 Element 371026 ×19
  • Plate 1 x 8 Black Part 3460 Element 346026 ×2
  • Plate 8 x 16 Black Part 92438 Element 6094066 ×4
  • Plate 8 x 8 Black Part 41539 Element 4166619 ×1
  • Plate Special 4 x 4, Studs on One Edge Plain] Black Part 6179 Element 617926 ×1
  • Technic Beam 1 x 3 Thick Black Part 32523 Element 4142822 or 3252326 ×2
  • Technic Beam 1 x 7 Thick Black Part 32524 Element 4495935 or 4155458 ×4
  • Technic Gear 36 Tooth Double Bevel Black Part 32498 Element 4255563 or 4177434 ×2
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×14
  • Technic Pin with Friction Ridges Lengthwise and Towball Black Part 6628 Element 4184169 or 662826 ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×3
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×3
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×3
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×11
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×21

Light Bluish Gray 100 pieces

  • Baseplate 32 x 32 Light Bluish Gray Part 3811 Element 6061048 ×1
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×8
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×10
  • Brick 1 x 3 Light Bluish Gray Part 3622 Element 4211428 ×14
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×5
  • Brick Arch 1 x 3 Light Bluish Gray Part 4490 Element 4645397 or 4519971 ×1
  • Brick Arch 1 x 4 Light Bluish Gray Part 3659 Element 4211435 ×4
  • 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 ×8
  • Cone 1 x 1 [Top Groove] Light Bluish Gray Part 59900 Element 4529241 ×4
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×2
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×4
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×10
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×4
  • Plate Special 1 x 2, Top Clip [Split] Light Bluish Gray Part 92280 Element 4598526 ×4
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1
  • Technic Beam 1 x 11 Thick Light Bluish Gray Part 32525 Element 4611705 or 4534910 ×2
  • Technic Brick 1 x 1 with Pin Hole Light Bluish Gray Part 6541 Element 4211535 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×10
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Tile 6 x 6 with Bottom Tubes Light Bluish Gray Part 10202 Element 6014617 ×2

Reddish Brown 65 pieces

  • Brick 1 x 1 Reddish Brown Part 3005 Element 4211242 ×4
  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×6
  • Brick 1 x 3 Reddish Brown Part 3622 Element 4245312 or 4211220 ×6
  • Brick 1 x 6 Reddish Brown Part 3009 Element 4211193 ×5
  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×17
  • Brick Round 2 x 2 [Grill] Reddish Brown Part 92947 Element 6036503 ×1
  • Brick Sloped 45° 2 x 2 Reddish Brown Part 3039 Element 4211202 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×2
  • Plate 1 x 3 Reddish Brown Part 3623 Element 4211152 ×1
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×4
  • Plate 2 x 10 Reddish Brown Part 3832 Element 4211214 ×8
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Reddish Brown Part 4032a Element 4211159 ×1
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×8

Blue 43 pieces

  • Brick 2 x 2 Corner Blue Part 2357 Element 4558606 or 4533323 ×6
  • Brick 2 x 6 Blue Part 2456 Element 4181139 or 245623 ×1
  • Brick Sloped 30° 1 x 2 x 2/3 Blue Part 85984 Element 4651236 ×2
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×4
  • Technic Beam 2 x 4 L-Shape Thick Blue Part 32140 Element 6271829 or 4168114 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Blue Part 3894 Element 389423 ×4
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×6
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×14
  • Tile 1 x 8 with Groove Blue Part 4162 Element 416223 ×5

Green 38 pieces

  • Tile 1 x 2 with Groove Green Part 3069b Element 306928 ×10
  • Tile 1 x 4 with Groove Green Part 2431 Element 243128 ×3
  • Tile 2 x 2 with Groove Green Part 3068b Element 4107762 or 306828 ×3
  • Tile 2 x 4 with Groove Green Part 87079 Element 4566179 ×22

Dark Bluish Gray 32 pieces

  • Brick Sloped 45° 2 x 1 Double with Inside Stud Holder Dark Bluish Gray Part 3044c Element 4226221 ×2
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×1
  • Plate 2 x 2 Corner Dark Bluish Gray Part 2420 Element 4210635 ×1
  • Plate 2 x 6 Dark Bluish Gray Part 3795 Element 4211002 ×2
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×2
  • Technic Axle 4 with Stop Dark Bluish Gray Part 87083 Element 6083620 or 4560177 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Dark Bluish Gray Part 3701 Element 4213607 or 370127 ×11
  • Technic Link 1 x 6 without Stoppers Dark Bluish Gray Part 32005a Element 4629920 or 4211026 ×2
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×8

Red 20 pieces

  • Brick 1 x 1 Red Part 3005 Element 300521 ×2
  • Brick 1 x 12 Red Part 6112 Element 611221 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Red Part 85984 Element 4651524 ×6
  • Plate 1 x 2 Red Part 3023 Element 302321 ×4
  • Technic Beam 1 x 2 Thick Red Part 43857 Element 4185664 ×4
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×1
  • Tile 2 x 4 with Groove Red Part 87079 Element 4560179 ×1

Yellow 15 pieces

  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×2
  • Technic Axle 9 Yellow Part 60485 Element 6130010 ×4
  • Technic Beam 2 x 4 L-Shape Thick Yellow Part 32140 Element 6271828 or 4141628 ×1
  • Technic Brick 1 x 6 [5 Pin Holes] Yellow Part 3894 Element 389424 ×4
  • Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×4

White 14 pieces

  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes White Part 92593 Element 4597131 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] White Part 99206 Element 6046979 ×4
  • Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole White Part 32184 Element 6276981 or 6114940 ×4
  • Technic Brick 1 x 10 [9 Pin Holes] White Part 2730 Element 273001 ×3
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin White Part 32064a Element 6548286 or 6178921 ×2

Orange 10 pieces

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1
  • Sports Soccer / Basket Ball [Plain] Orange Part 72824 Element 6261264 or 6023209 ×4
  • Technic Axle Connector Smooth [with x Hole + Orientation] Orange Part 59443 Element 6143028 ×3
  • Tile Special 1 x 2 Grille with Bottom Groove Orange Part 2412b Element 4125254 or 3933106 ×2

Lime 4 pieces

  • Brick Round 2 x 2 Dome Top, Hollow Stud Lime Part 30367c Element 4279734 ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Lime Part 85984 Element 6025026 ×2

Dark Green 2 pieces

  • Brick Sloped 45° 2 x 1 Double with Inside Stud Holder Dark Green Part 3044c Element 6070739 ×2

Dark Tan 2 pieces

  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×2

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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