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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.

Checking

6097 Night Lord's Castle

569 pieces in 163 part and color combinations, plus 8 minifigures.

LEGO counts 601 pieces. This inventory comes from a separate parts catalog and lists 607, including the 38 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.

Every bag and the box. Shake out each bag, check its corners and seams, and look inside the empty box.
Inside what you have built. Small pieces lodge inside tubes, under plates and between studs. Turn the model over and look.
The last few steps. Compare each recent step with its parts callout. A piece used in the wrong place earlier leaves you one short later.
Look-alike colors. 1 part in this set come in two colors that are easy to mix up; they are listed below.
The spare pieces. Many sets include a few extra small pieces. Check them before you order a replacement.
The floor and your building area. Check under furniture, the chair and the edges of your building surface.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

Plate Round 1 x 1 with Solid Stud Yellow ×9 Trans-Yellow ×1 Trans-Yellow is see-through: hold the piece up to a light.

Piece checklist

Bricks Curved 40 pieces

Brick Arch 1 x 3 Black Part 4490 Element 4512727 or 4240242 ×4
Brick Arch 1 x 4 Black Part 3659 Element 365926 ×5
Brick Arch 1 x 6 Black Part 3455 Element 345526 ×6
Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Black Part 3307 Element 330726 ×3
Brick Arch 1 x 12 x 3 Light Gray Part 6108 Element 4163079 or 610802 ×8
Brick Arch 1 x 3 Light Gray Part 4490 Element 449002 ×4
Brick Arch 1 x 4 Light Gray Part 3659 Element 365902 ×3
Brick Arch 1 x 4 x 2 Light Gray Part 6182 Element 4106972 or 618202 ×1
Brick Curved 1 x 5 x 4 Inverted Red Part 30099 Element 6173955 or 6093576 ×6

Bricks Special 40 pieces

Brick Special 2 x 2 x 6 with Groove Black Part 6056 Element 4106968 or 605626 ×6
Brick Special 1 x 1 x 2 with Shutter Holder Light Gray Part 3581 Element 4161034 or 358102 ×4
Brick Special 1 x 1 with Headlight Red Part 4070 Element 407021 ×25
Brick Special 1 x 2 with Groove Red Part 4216 Element 6097383 or 4501560 ×2
Brick Special 1 x 2 with Pin Red Part 2458 Element 245821 ×2
Brick Special 2 x 4 with Pins Red Part 6249 Element 4143668 or 4107561 ×1

Bricks Round and Cones 28 pieces

Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×3
Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×1
Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×19
Cone 1 x 1 [No Top Groove] Red Part 4589 Element 458921 ×2
Brick Round 1 x 1 Open Stud Trans-Green Part 3062b Element 6514234 or 6238046 ×2
Brick Round 1 x 1 Open Stud Trans-Red Part 3062b Element 6514235 or 6238673 ×1

Minifig Shields, Weapons, & Tools 18 pieces

Weapon Bow and Arrow [Large] Brown Part 4499 Element 449925 ×1
Weapon Lance Brown Part 3849 Element 4160964 or 384925 ×3
Weapon Pike / Spear Round End Brown Part 4497 ×3
Weapon Sword / Greatsword Round Chrome Silver Part 59 Element 4649842 or 71014 ×1
Weapon Halberd / Axe Elaborate Dark Gray Part 6123 Element 612327 ×3
Weapon Sword / Shortsword Dark Gray Part 3847 Element 4106926 or 384727 ×1
Shield Ovoid with Batlord Print Light Gray Part 2586pr0014 Element 4106507 ×1
Shield Triangular with Batlord Print Light Gray Part 3846pr0021 Element 4106508 ×5

Windows and Doors 18 pieces

Window 1 x 2 x 2 & 2/3 Pane Twisted Bar with Rounded Top Black Part 30045 Element 4105221 ×2
Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top Black Part 30046 Element 6173105 or 3004626 ×3
Door, Gate 1 x 3 x 6 Curved Top Brown Part 2554 Element 4174259 or 255425 ×4
Door 2 x 5 x 5 Swivel, Flat Base Dark Gray Part 30102 Element 4106965 ×2
Door Frame 2 x 8 x 6 Swivel with Bottom Notches Dark Gray Part 30101 Element 4114050 or 4106966 ×2
Window 1 x 2 x 2 2/3 with Rounded Top Red Part 30044 Element 4174261 or 4100558 ×5

Plates Round Curved and Dishes 16 pieces

Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×2
Plate Round 1 x 1 with Solid Stud Trans-Clear Part 6141 Element 6514052 or 6240030 ×1
Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 ×1
Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×1
Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 ×1
Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 Also in Yellow ×1
Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 Also in Trans-Yellow ×9

Plates Special 15 pieces

Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Black Part 4623 Element 4597267 or 462326 ×1
Plate Special 2 x 2 with 2 Pin Holes Light Gray Part 2817 Element 281702 ×1
Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Red Part 4085c Element 408521 ×8
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Red Part 3794a ×4
Technic Plate 2 x 4 [3 Holes] Yellow Part 3709 Element 370924 ×1

Panels 14 pieces

Castle Turret Top 4 x 8 x 2 1/3 Dark Gray Part 6066 Element 606627 ×1
Panel 2 x 5 x 6 Wall with Arched Window Dark Gray Part 4444 Element 4106970 ×4
Panel 3 x 3 x 6 Corner Wall Dark Gray Part 2345 Element 4106971 ×4
Panel 3 x 6 x 6 Double Wall with Arched Window Dark Gray Part 30100 Element 4106964 ×1
Castle Turret Top 7 x 7 Corner Light Gray Part 6072 Element 607252 or 607202 ×2
Panel 1 x 2 x 1 [Square Corners] Red Part 4865a ×2

Tiles 13 pieces

Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×2
Tile 1 x 4 with Groove Light Gray Part 2431 Element 243102 ×2
Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×3
Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×5
Tile 2 x 2 with Black Scroll and Red Spell Print White Part 3068bpr0023 Element 4158837 or 81926 ×1

Hinges, Arms and Turntables 10 pieces

Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×1
Plate Special 4 x 6 x 2/3 with Trap Door Hinge Light Gray Part 30042 Element 4106975 ×1
Plate Special 6 x 8 Trap Door Frame Horizontal Light Gray Part 30041 Element 4106974 ×1
Turntable 2 x 2 Plate - Top Light Gray Part 3679 Element 367952 or 367902 ×1
Hinge Brick 1 x 2 Top Plate Thin Red Part 3938 Element 6534944 or 6078079 ×3
Hinge Brick 1 x 2 Base Yellow Part 3937 Element 393724 ×3

Animal / Creature Body Parts 7 pieces

Animal / Creature Body Part, Dinosaur / Dragon Arm, Left Black Part 6128 Element 4106518 ×1
Animal / Creature Body Part, Dinosaur / Dragon Arm, Right Black Part 6127 Element 4106517 ×1
Animal Body Part, Alligator / Crocodile / Dragon / Dinosaur Tail Black Part 6028 Element 4142627 or 4106516 ×1
Animal Body Part, Alligator / Crocodile / Dragon Upper Jaw / Dinosaur Tongue Black Part 6027 Element 4142626 or 4106515 ×1
Creature Body Part, Dragon Body [Plain] Black Part 6129c01 Element 4190251 or 4142629 ×1
Creature Body Part, Dragon Wing Trans-Neon Orange Part 6133 Element 4106519 ×2

Animals / Creatures 7 pieces

Animal, Bat Black Part 30103 Element 4587312 or 4106513 ×5
Animal, Horse, Movable Head, Black Eyes Circled with White, Brown Bridle Print Black Part 4493c01pr0002 Element 4225611 or 4107518 ×1
Animal, Horse, Movable Head, Black Eyes, Red Bridle, Black Mane Print Brown Part 4493c01pr0001 Element 74323 ×1

Minifig Accessories 7 pieces

Equipment Goblet / Glass Black Part 2343 Element 6247194 or 4223189 ×1
Equipment Pot / Cauldron 3 x 3 x 1 & 3/4 with Handles Black Part 4341 Element 4525078 or 434126 ×1
Equipment Brush / Broom Brown Part 4332 Element 4159283 or 4106558 ×1
Equipment Crystal Ball Globe 2 x 2 x 2 Trans-Clear Part 30106 Element 6507889 or 6274736 ×1
Equipment Goblet / Glass Trans-Clear Part 2343 Element 6166107 or 3000240 ×1
Equipment Magic Wand Trans-Red Part 6124 Element 4106561 ×2

Bars, Ladders and Fences 6 pieces

Fence Spindled 1 x 4 x 2 [2 Top Studs] Black Part 30055 Element 4185652 or 3005526 ×2
Bar 9 x 13 Grille Brown Part 6046 Element 4107833 or 604625 ×1
Antenna 1 x 4 with Rounded Top Trans-Red Part 3957a Element 6065498 or 4106520 ×1
Bar 1 x 4 x 2 with Studs Yellow Part 4083 Element 408324 ×2

Supports, Girders and Cranes 6 pieces

Support 2 x 2 x 11 Solid Pillar Black Part 75347 Element 4541890 or 4215613 ×6

Energy Effects 4 pieces

Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×4

Technic Bricks 4 pieces

Technic Brick 1 x 2 [1 Pin Hole] Red Part 3700 Element 370021 ×2
Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×2

Animal / Creature Accessories 3 pieces

Animal / Creature Accessory, Saddle [Two Clips] Blue Part 4491b Element 449123 ×1
Animal / Creature Accessory, Horse Barding with Fright Knights Print Light Gray Part 2490pr0007 Element 4106509 ×1
Animal / Creature Accessory, Horse Battle Helmet [Winged, One Clip] Red Part 6125 Element 4106910 or 612521 ×1

Containers 3 pieces

Barrel 2 x 2 x 2 Brown Part 2489 Element 248925 ×1
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

Flags, Banners and Signs 3 pieces

Flag 8 x 5 Wave with Red Border and Bat Print Light Gray Part 72534pr0002 Element 4106510 ×1
Flag 4 x 1 Wavy [First Wave Left] Red Part 4495a ×1
Flag 4 x 1 Wavy [First Wave Left] Yellow Part 4495a ×1

Bricks Wedged 2 pieces

Brick Wedged 5 x 5 Facet Light Gray Part 6107 Element 4161068 or 610702 ×2

Minifig Neckwear 2 pieces

Minifig Neckwear Basket [D Style] Brown Part 4523 Element 4173697 or 452325 ×2

Plates Wedged 2 pieces

Wedge Plate 6 x 6 Cut Corner Black Part 6106 Element 4106977 or 610626 ×2

String, Bands and Reels 2 pieces

Chain 17L [21 Links] Dark Gray Part 30104 Element 4106728 ×2

Minifig Heads 1 piece

Minifig Head Skeleton, Standard Skull Print White Part 3626bpr0895 Element 6008095 or 82359 ×1

Technic Axles 1 piece

Technic Axle 3 with Stud Dark Gray Part 6587 Element 4113884 or 658727 ×1

Tiles Special 1 piece

Tile Special 1 x 1 with Clip and Straight Tips Yellow Part 2555 Element 4164060 or 255524 ×1

Minifigures 8 figures

Knight (Royal Knights) - Blue Legs, Dark Gray Neck-Protector Minifigure, checked as a whole figure ×1
Knight (Fright Knights) - Red Legs, Black Hips Minifigure, checked as a whole figure ×1
Bat Lord (Fright Knights) - Cape Minifigure, checked as a whole figure ×1
Skeleton, Standard Face, Ball Joint Arms (3626b Head) Minifigure, checked as a whole figure ×1
Knight (Fright Knights) - Black Helmet, Red Triple-Plume Minifigure, checked as a whole figure ×1
Knight (Fright Knights) - Dark Gray Legs, Black Chin-Guard Minifigure, checked as a whole figure ×1
Witch (Fright Knights) - Willa, Cape Minifigure, checked as a whole figure ×1
Archer (Fright Knights) 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.