BlockTalk Find Your Set

Free tool

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.

King Leo's Castle

Checking

6091 King Leo's Castle

501 pieces in 148 part and color combinations, plus 8 minifigures.

The piece count includes the 38 parts inside the set's minifigures, which this inventory lists separately. 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.

Show

Piece checklist

Bricks 154 pieces

  • Brick 1 x 3 Black Part 3622 Element 362226 ×2
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×2
  • Brick 2 x 2 x 3 Black Part 30145 Element 4113241 ×4
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 6 Black Part 2456 Element 4181144 or 245626 ×2
  • Brick 8 x 16 Dark Gray Part 4204 Element 4181114 or 4118869 ×1
  • Brick 8 x 8 Dark Gray Part 4201 Element 4181131 or 4118868 ×4
  • Brick 12 x 24 Green Part 30072 Element 3007228 ×1
  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×4
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Light Gray Part 2453a ×6
  • Brick 1 x 12 Light Gray Part 6112 Element 611202 ×3
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×61
  • Brick 1 x 2 x 2 with Inside Axle Holder Light Gray Part 3245b Element 4107533 ×4
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Light Gray Part 2454a Element 245402 ×16
  • Brick 1 x 3 Light Gray Part 3622 Element 362202 ×2
  • Brick 1 x 4 Light Gray Part 3010 Element 301002 ×3
  • Brick 1 x 6 Light Gray Part 3009 Element 300902 ×6
  • Brick 1 x 8 Light Gray Part 3008 Element 300802 ×11
  • Brick 2 x 2 Corner Light Gray Part 2357 Element 235752 or 235702 ×12
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×1
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×6
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1

Bricks Sloped 50 pieces

  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Black Part 3684 Element 4286874 or 4248065 ×6
  • Brick Sloped Inverted 75° 2 x 1 x 3 Black Part 2449 Element 4636202 or 4561789 ×4
  • Brick Sloped 45° 2 x 2 Blue Part 3039 Element 303923 ×2
  • Brick Sloped 75° 2 x 2 x 2 Quadruple Convex Blue Part 3688 Element 6340549 or 4558642 ×5
  • Brick Sloped 75° 2 x 2 x 3 Double Convex Blue Part 3685 Element 6417950 or 6184480 ×16
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Brown Part 3684 Element 4248064 or 4143984 ×2
  • Brick Sloped 33° 3 x 1 Dark Gray Part 4286 Element 4108045 or 428627 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×2
  • Brick Sloped 45° 2 x 2 Light Gray Part 3039 Element 303902 ×2
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Red Part 4871 Element 487121 ×1
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Tan Part 3660 Element 4118866 ×6

Plates 47 pieces

  • Plate 1 x 10 Black Part 4477 Element 447726 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×6
  • Plate 1 x 3 Black Part 3623 Element 362326 ×6
  • Plate 2 x 2 Black Part 3022 Element 302226 ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 6 Black Part 3795 Element 379526 ×2
  • Plate 4 x 8 Black Part 3035 Element 303526 ×3
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×3
  • Plate 6 x 14 Brown Part 3456 Element 4118877 ×1
  • Plate 4 x 10 Dark Gray Part 3030 Element 4118874 ×2
  • Plate 4 x 6 Dark Gray Part 3032 Element 4116853 ×2
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×2
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×1
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×5
  • Plate 1 x 2 Red Part 3023 Element 302321 ×2
  • Plate 2 x 4 Red Part 3020 Element 302021 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1

Bricks Round and Cones 35 pieces

  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole Brown Part 6222 Element 4116666 ×4
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×31

Bricks Special 27 pieces

  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Brick Special 1 x 2 with Pin Blue Part 2458 Element 245823 ×2
  • Brick Special 1 x 1 with Headlight Brown Part 4070 Element 4118863 or 407025 ×7
  • Brick Special 1 x 1 with Handle Dark Gray Part 2921 Element 4118873 ×2
  • Brick Special 1 x 1 with Headlight Dark Gray Part 4070 Element 4108044 or 407027 ×6
  • Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Dark Gray Part 30237a Element 4113207 ×2
  • Brick Special 2 x 4 with Pins Dark Gray Part 6249 Element 4143669 or 4100411 ×2
  • Brick Special 2 x 2 x 6 with Groove Light Gray Part 6056 Element 605602 ×2
  • Brick Special 2 x 3 x 3 with Cutout and Lion Head [Hollow Studs] Tan Part 30274 Element 4253735 or 4141004 ×2

Panels 24 pieces

  • Panel 1 x 2 x 1 [Square Corners] Black Part 4865a Element 486526 ×7
  • Panel 2 x 5 x 6 Wall with Arched Window Dark Gray Part 4444 Element 4106970 ×4
  • Panel 3 x 4 x 6 with Arched Window Dark Gray Part 30246 Element 4118878 ×2
  • Castle Turret Top 4 x 8 x 2 1/3 Light Gray Part 6066 Element 606602 ×3
  • Panel 1 x 2 x 1 [Square Corners] Light Gray Part 4865a Element 486502 ×4
  • Panel 3 x 4 x 6 with Arched Window Light Gray Part 30246 Element 4118789 ×4

Bricks Curved 21 pieces

  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Black Part 3307 Element 330726 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Black Part 6091 Element 6383142 or 6184784 ×4
  • Brick Arch 1 x 3 Dark Gray Part 4490 Element 4118870 or 449027 ×2
  • Brick Arch 1 x 6 Dark Gray Part 3455 Element 4118876 or 345527 ×8
  • Brick Arch 1 x 8 x 2 Light Gray Part 3308 Element 330802 ×2
  • Brick Arch 2 x 12 x 6 with Grooves Light Gray Part 30272 Element 4118879 ×1
  • Brick Arch 1 x 4 Red Part 3659 Element 365921 ×2

Minifig Shields, Weapons, & Tools 19 pieces

  • Weapon Halberd / Axe Black Part 3848 Element 4118867 or 384826 ×2
  • Weapon Lance Black Part 3849 Element 6345264 or 384926 ×1
  • Weapon Bow and Arrow [Large] Brown Part 4499 Element 449925 ×1
  • Weapon Crossbow and Bolt Brown Part 2570 Element 4118872 ×4
  • Weapon Pike / Spear Round End Brown Part 4497 ×1
  • Weapon Sword / Greatsword Round Chrome Silver Part 59 Element 4649842 or 71014 ×3
  • Weapon Sword / Shortsword Dark Gray Part 3847 Element 4106926 or 384727 ×2
  • Shield Ovoid with Bull Head Print Light Gray Part 2586pr0015 Element 4117036 ×3
  • Shield Triangular with Lion Head, Blue and Yellow Print Light Gray Part 3846pr0022 Element 4117035 ×1
  • Weapon Halberd / Axe Light Gray Part 3848 Element 4114513 ×1

Plates Round Curved and Dishes 16 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×8
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Gray Part 4032a Element 403202 ×4
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 1 spare in the box ×3

Plates Special 14 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×1
  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Blue Part 4081b Element 6281991 or 4632567 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Blue Part 4085c Element 408523 ×1
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Blue Part 4623 Element 4280139 ×1
  • Plate Special 2 x 2 with Towball Blue Part 3729 Element 372923 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Gray Part 2540 Element 4140589 or 4109721 ×2
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Dark Gray Part 3794a Element 4118864 or 379427 ×1
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Light Gray Part 2444 Element 244402 ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Red Part 4623 Element 462321 ×2

Hinges, Arms and Turntables 12 pieces

  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×3
  • Turntable 4 x 4 Square Base Black Part 3403 Element 340326 ×1
  • Turntable 4 x 4 Top Black Part 3404 Element 4221659 or 340426 ×1
  • Turntable 2 x 2 Plate, Base Blue Part 3680 Element 368023 ×2
  • Hinge Brick 1 x 2 Base Dark Gray Part 3937 Element 4112234 or 393727 ×3
  • Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×2

Technic Bricks 11 pieces

  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b ×1
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Brick 1 x 4 [3 Pin Holes] Blue Part 3701 Element 370123 ×2
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Gray Part 3700 Element 4114529 or 370027 ×2

Tiles 10 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×1
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile 1 x 2 with Groove Light Gray Part 3069b Element 306902 ×2
  • Tile 2 x 2 with Groove Light Gray Part 3068b Element 306802 ×2

Energy Effects 9 pieces

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×9

Flags, Banners and Signs 9 pieces

  • Flag 4 x 1 Wavy [First Wave Left] Blue Part 4495a ×4
  • Flag 4 x 5 with Knights Kingdom Lion Head Print Blue Part 71962pr0001 Element 4118780 ×1
  • Flag 2 x 2 Square with Lion Head on Blue and Yellow X Print Light Gray Part 2335pr0025 Element 4117037 ×2
  • Flag 4 x 1 Wavy [First Wave Left] Red Part 4495a ×1
  • Banner, 16 x 16 with Blue Stripes and Lion Head Shield Print White Part 71963pr0001 Element 4118781 ×1

Bars, Ladders and Fences 8 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×4
  • Bar 9 x 13 Grille Brown Part 6046 Element 4107833 or 604625 ×1
  • Fence Spindled 1 x 4 x 2 [2 Top Studs] Brown Part 30055 Element 4185651 or 4106328 ×3

Tiles Special 8 pieces

  • Tile Special 1 x 1 with Clip and Straight Tips Brown Part 2555 Element 4118871 ×8

Technic Pins 7 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×6
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×1

Minifig Accessories 5 pieces

  • Money / Coin with "10" Sans-serif Type Chrome Gold Part 57503 ×1
  • Money / Coin with "20" Sans-serif Type Chrome Gold Part 57504 ×1
  • Money / Coin with "30" Sans-serif Type Chrome Gold Part 57505 ×1
  • Money / Coin with "40" Sans-serif Type Chrome Gold Part 57506 ×1
  • Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1

Projectiles / Launchers 3 pieces

  • Launcher, Technic Competition Cannon, Round Bottom with Same Color Ends Black Part 32074c01 Element 4118816 or 4118815 ×1
  • Launcher, with 1 x 8 Plate with Pin Hole and Bucket (Catapult) Dark Gray Part 30275 Element 4116849 ×1
  • Projectile, Technic Competition Arrow, Beam Shaft with Solid Black Rubber End Light Gray Part 76110c01 Element 4118818 ×1

Animal / Creature Accessories 2 pieces

  • Animal / Creature Accessory, Horse Barding with Lion Heads and Blue and Yellow Print Light Gray Part 2490pr0015 Element 4118688 ×1
  • Animal / Creature Accessory, Horse Battle Helmet [Winged, One Clip] Red Part 6125 Element 4106910 or 612521 ×1

Animals / Creatures 2 pieces

  • Animal, Bird, Parrot [Plain] Brown Part 2546 Element 4118865 ×1
  • Animal, Horse, Movable Head, Black Eyes, White Pupils, Brown Bridle Print White Part 4493c01pr0011 Element 4121830 or 73408 ×1

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, with Groove Brown Part 4738b Element 473875 or 473825 ×1
  • Treasure Chest Lid [Thick Hinge] Brown Part 4739a Element 473925 ×1

Windows and Doors 2 pieces

  • Door Frame 2 x 8 x 6 Swivel with Bottom Notches Dark Gray Part 30101 Element 4114050 or 4106966 ×1
  • Door 2 x 5 x 5 Swivel, Flat Base with Stained Glass Knight Print Trans-Clear Part 30102pr0002 Element 4117041 ×1

Animal / Creature Body Parts 1 piece

  • Animal Body Part, Horn, Cattle White Part 87695 ×1

Baseplates 1 piece

  • Baseplate Raised 32 x 48 x 6 with 4 Corner Pits and Rock Path Print Green Part 30271pr0003 Element 4495057 or 4219872 ×1

Plates Wedged 1 piece

  • Wedge Plate 3 x 4 without Stud Notches Blue Part 4859 ×1

Rock 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Green Part 30153 Element 6513970 or 6247788 ×1

Minifigures 8 figures

  • King Leo (Knights Kingdom I) - Lion Shield, Crown Minifigure, checked as a whole figure ×1
  • Skeleton, Standard Face, Ball Joint Arms (3626b Head) Minifigure, checked as a whole figure ×1
  • Maiden (Knights Kingdom I) - Black Cone Hat Minifigure, checked as a whole figure ×1
  • Knight (Knights Kingdom I) - Cedric the Bull, Black Helmet, Horn Minifigure, checked as a whole figure ×1
  • Knight (Knights Kingdom I) - Gilbert the Bad, Black Helmet Minifigure, checked as a whole figure ×1
  • Archer (Knights Kingdom I) - Leather on Legs Minifigure, checked as a whole figure ×1
  • Knight (Knights Kingdom I) - Princess Storm Minifigure, checked as a whole figure ×1
  • Knight (Knights Kingdom I) - Plate on Legs 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.

We value your privacy

We use cookies 🍪 for analytics and to improve your experience. Read our privacy policy