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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.

Black Monarch's Castle

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6085 Black Monarch's Castle

631 pieces in 120 part and color combinations, plus 12 minifigures.

LEGO counts 702 pieces. This inventory comes from a separate parts catalog and lists 688, including the 57 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.

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Piece checklist

Black 323 pieces

  • Animal, Horse, Movable Head, Black Eyes Circled with White, Brown Bridle Print Black Part 4493c01pr0002 Element 4225611 or 4107518 ×1
  • Brick 1 x 1 Black Part 3005 Element 300526 ×39
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Black Part 2453a Element 245326 ×3
  • Brick 1 x 2 Black Part 3004 Element 300426 ×70
  • Brick 1 x 3 Black Part 3622 Element 362226 ×16
  • Brick 1 x 4 Black Part 3010 Element 301026 ×15
  • Brick 1 x 6 Black Part 3009 Element 300926 ×4
  • Brick 1 x 8 Black Part 3008 Element 300826 ×3
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×18
  • Brick Arch 1 x 3 Black Part 4490 Element 4512727 or 4240242 ×4
  • Brick Arch 1 x 4 Black Part 3659 Element 365926 ×4
  • Brick Arch 1 x 5 x 4 [Continuous Bow] Black Part 2339 Element 4519925 or 4159140 ×2
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Black Part 3063b Element 306326 ×12
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×4
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Black Part 4460a ×2
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Black Part 3684 Element 4286874 or 4248065 ×6
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×6
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Black Part 3660 Element 366026 ×8
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×8
  • Brick Wedged 3 x 3 Facet Black Part 2462 Element 6394879 or 4189116 ×4
  • Door Frame 2 x 6 x 7 Black Part 4071 Element 4264483 or 407126 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Black Part 3938 Element 393826 ×1
  • Hinge Brick 1 x 4 [Lower] Black Part 3831 Element 383126 ×3
  • Hinge Brick 1 x 4 [Upper] Black Part 3830 Element 6344999 or 6011458 ×3
  • Panel 2 x 5 x 6 Wall with Arched Window Black Part 4444 Element 444426 ×13
  • Panel 2 x 5 x 6 Wall with Scattered Stones Light Gray Print Black Part 4444pr0005 ×1
  • Panel 2 x 5 x 6 Wall with Window Stones Light Gray Print Black Part 4444pr0004 ×1
  • Panel 3 x 3 x 6 Corner Wall Black Part 2345 Element 4272943 or 4160950 ×9
  • Panel 3 x 3 x 6 Corner Wall with Light Grey Stones Print Black Part 2345pr0003 ×1
  • Plate 1 x 1 Black Part 3024 Element 302426 ×9
  • Plate 1 x 10 Black Part 4477 Element 447726 ×10
  • Plate 1 x 2 Black Part 3023 Element 302326 ×6
  • Plate 1 x 3 Black Part 3623 Element 362326 ×6
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 1 x 8 Black Part 3460 Element 346026 ×1
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×2
  • Plate 2 x 4 Black Part 3020 Element 302026 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×2
  • Plate 4 x 12 Black Part 3029 Element 302926 ×2
  • Plate 6 x 8 Black Part 3036 Element 303676 or 303626 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] Black Part 4085b ×4
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×3
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×1
  • String Cord Thin (0.5mm) 30cm Black Part 56823c30 Element 9069 ×1
  • String Cord Thin (0.5mm) 75cm Black Part 56823c75 Element 7909 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Wedge Plate 4 x 4 Wing Left Black Part 3936 Element 4280156 or 4189084 ×1
  • Wedge Plate 4 x 4 Wing Right Black Part 3935 Element 4280157 or 4189086 ×1

Light Gray 253 pieces

  • Antenna 1 x 4 with Rounded Top Light Gray Part 3957a Element 395702 ×3
  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×24
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×33
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Light Gray Part 2454a Element 245402 ×2
  • Brick 1 x 4 Light Gray Part 3010 Element 301002 ×2
  • Brick 1 x 6 Light Gray Part 3009 Element 300902 ×1
  • Brick 2 x 2 Light Gray Part 3003 Element 4103591 or 300352 ×5
  • Brick 2 x 2 Corner Light Gray Part 2357 Element 235752 or 235702 ×6
  • Brick 2 x 3 Light Gray Part 3002 Element 300252 or 300202 ×2
  • Brick Arch 1 x 3 Light Gray Part 4490 Element 449002 ×2
  • Brick Arch 1 x 5 x 4 [Continuous Bow] Light Gray Part 2339 Element 233902 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Gray Part 3040b Element 4121933 or 304002 ×4
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Light Gray Part 4460a Element 446002 ×4
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Light Gray Part 3684 Element 4248057 or 4143978 ×10
  • Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin Light Gray Part 3747a Element 4109695 ×2
  • Brick Sloped Inverted 45° 2 x 1 Light Gray Part 3665 Element 366502 ×19
  • Brick Sloped Inverted 45° 2 x 2 Double Convex Light Gray Part 3676 Element 4186669 or 367602 ×12
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Gray Part 3660 Element 366002 ×15
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Light Gray Part 4871 Element 487102 ×5
  • Brick Sloped Inverted 75° 2 x 1 x 3 Light Gray Part 2449 Element 4160952 or 244952 ×4
  • Brick Special 1 x 1 with Headlight Light Gray Part 4070 Element 407002 ×2
  • Hinge Brick 1 x 4 [Lower] Light Gray Part 3831 Element 383102 ×1
  • Hinge Brick 1 x 4 [Upper] Light Gray Part 3830 Element 383002 ×1
  • Plate 1 x 1 Light Gray Part 3024 Element 302402 ×6
  • Plate 1 x 10 Light Gray Part 4477 Element 447702 ×5
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×8
  • Plate 1 x 4 Light Gray Part 3710 Element 371002 ×5
  • Plate 1 x 6 Light Gray Part 3666 Element 366602 ×3
  • Plate 1 x 8 Light Gray Part 3460 Element 346002 ×5
  • Plate 2 x 2 Light Gray Part 3022 Element 302202 ×3
  • Plate 2 x 2 Corner Light Gray Part 2420 Element 242052 or 242002 ×2
  • Plate 2 x 3 Light Gray Part 3021 Element 302102 ×9
  • Plate 2 x 4 Light Gray Part 3020 Element 302002 ×4
  • Plate 2 x 8 Light Gray Part 3034 Element 303402 ×2
  • Plate 4 x 8 Light Gray Part 3035 Element 303502 ×3
  • Plate Special 1 x 1 with Clip Vertical [Thin U Clip] Light Gray Part 4085b ×2
  • Plate Special 3 x 2 with Rounded End, Hole Light Gray Part 3176 Element 317652 or 317602 ×1
  • Shield Triangular with Blue Dragon Print Light Gray Part 3846pr0024 ×10
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Light Gray Part 3700 Element 370002 ×5
  • Technic Bush 1/2 Toothed Type I [+ Opening] Light Gray Part 4265a Element 426502 ×1
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×1
  • Weapon Gun / Torch (Space) [with Grooves] Light Gray Part 3959 Element 4254948 or 395952 ×4
  • Wedge Plate 3 x 3 Cut Corner Light Gray Part 2450 Element 245002 ×2
  • Wedge Plate 3 x 6 Cut Corners Light Gray Part 2419 Element 241902 ×8

Brown 20 pieces

  • Animal, Horse, Movable Head, Black Eyes, Red Bridle Print [Complete Assembly] Brown Part 4493c01pr0003 ×2
  • Barrel 2 x 2 x 2 Brown Part 2489 Element 248925 ×1
  • Brick 1 x 2 Brown Part 3004 Element 300425 ×2
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×2
  • Technic Wedge Belt Wheel [aka Pulley] Brown Part 4185 Element 4162482 or 4107463 ×1
  • Weapon Bow and Arrow [Large] Brown Part 4499 Element 449925 ×4
  • Weapon Halberd / Axe Brown Part 3848 Element 384825 ×4
  • Weapon Lance Brown Part 3849 Element 4160964 or 384925 ×1
  • Weapon Pike / Spear Round End Brown Part 4497 ×3

Dark Gray 14 pieces

  • Door 1 x 6 x 7 Barred Dark Gray Part 4611 Element 461127 ×1
  • Weapon Lance Dark Gray Part 3849 Element 384927 ×6
  • Weapon Sword / Shortsword [Shiny Solid Smooth ABS] Dark Gray Part 3847a ×7

Red 8 pieces

  • Animal / Creature Accessory, Horse Barding with Blue Dragons (Blue on Red) Print Red Part 2490pr0008 ×1
  • Animal / Creature Accessory, Saddle [One Clip] Red Part 4491a ×1
  • Flag 4 x 1 Wavy [First Wave Left] Red Part 4495a ×6

Blue 7 pieces

  • Animal / Creature Accessory, Horse Barding with Black Dragons (Black on Blue) Print Blue Part 2490pr0013 ×1
  • Animal / Creature Accessory, Saddle [One Clip] Blue Part 4491a ×1
  • Flag 2 x 2 Square with Red Square and Yellow / Blue Dragon Print Blue Part 2335pr0009 ×1
  • Flag 4 x 1 Wavy [First Wave Left] Blue Part 4495a ×4

Green 3 pieces

  • Baseplate 16 x 16 Green Part 3867 Element 4217115 or 609828 ×2
  • Baseplate 16 x 32 Green Part 3857 Element 4219615 or 274828 ×1

White 3 pieces

  • Animal, Horse, Movable Head, Black Eyes, White Pupils, Brown Bridle Print White Part 4493c01pr0011 Element 4121830 or 73408 ×1
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×1
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×1

Minifigures 12 figures

  • Knight (Breastplate on Red) - Blue Legs, Yellow Plume Minifigure, checked as a whole figure ×1
  • Knight (Breastplate on Blue) - Red Legs, Red Plume Minifigure, checked as a whole figure ×1
  • Knight (Breastplate on Blue) - Blue Legs, Dark Gray Helmet, Yellow Plume Minifigure, checked as a whole figure ×1
  • Knight (Scale Mail on Red) - Red Arms, Blue Legs, Black Neck-Protector Minifigure, checked as a whole figure ×4
  • Knight (Breastplate on Black) - Black Legs, Black Helmet, Red Plume Minifigure, checked as a whole figure ×1
  • Archer (Scale Mail on Blue) - Black Arms, Red Legs Minifigure, checked as a whole figure ×4

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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