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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.

Treasure Chest

Checking

1788 Treasure Chest

148 pieces in 98 part and color combinations, plus 4 minifigures.

The piece count includes the 19 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.

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Piece checklist

Bricks Round and Cones 17 pieces

  • Brick Round 2 x 2 with Axle Hole Blue Part 3941 Element 614373 or 614323 ×1
  • Brick Round 2 x 2 with Axle Hole Brown Part 3941 Element 614325 ×6
  • Brick Round 1 x 1 Open Stud Green Part 3062b Element 306228 ×1
  • Brick Round 1 x 1 Open Stud Light Gray Part 3062b Element 306202 ×6
  • Brick Round 2 x 2 with Axle Hole Red Part 3941 Element 614321 or 394121 ×1
  • Brick Round Corner 4 x 4 Full Brick Yellow Part 2577 Element 6339202 or 4519972 ×2

Bricks 14 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×1
  • Brick 1 x 1 Light Gray Part 3005 Element 300502 ×1
  • Brick 1 x 2 Light Gray Part 3004 Element 300402 ×3
  • Brick 1 x 3 Light Gray Part 3622 Element 362202 ×1
  • Brick 1 x 4 Light Gray Part 3010 Element 301002 ×3
  • Brick 2 x 3 Light Gray Part 3002 Element 300252 or 300202 ×2
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Red Part 2453a Element 4160953 or 245321 ×1

Plates 14 pieces

  • Plate 1 x 1 Black Part 3024 Element 302426 ×1
  • Plate 1 x 6 Black Part 3666 Element 366626 ×1
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×2
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 1 x 2 Brown Part 3023 Element 302325 ×2
  • Plate 1 x 3 Brown Part 3623 Element 362325 ×1
  • Plate 1 x 2 Light Gray Part 3023 Element 302302 ×2
  • Plate 4 x 6 Light Gray Part 3032 Element 303202 ×1
  • Plate 6 x 12 Light Gray Part 3028 Element 302802 ×1
  • Plate 1 x 1 Trans-Red Part 3024 Element 6513963 or 6252042 ×1
  • Plate 4 x 8 Yellow Part 3035 Element 303524 ×1

Plants & Trees 13 pieces

  • Plant, Palm Tree Base Brown Part 2563 Element 4160960 or 256325 ×1
  • Plant, Palm Tree Trunk - Long Indented Connector Brown Part 2536a Element 253675 or 253625 ×5
  • Plant, Palm Leaf Small Green Part 6148 Element 6269040 or 4258459 ×7

Minifig Accessories 9 pieces

  • Equipment Saucepan Black Part 4529 Element 452926 ×1
  • Equipment Oar / Paddle Brown Part 2542 Element 4106940 or 254275 ×1
  • 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 Oar / Paddle Red Part 2542 Element 4189099 or 4106939 ×1
  • Equipment Cup / Mug [Plain] White Part 3899 Element 4659665 or 4548546 ×1
  • Equipment Goblet / Glass Yellow Part 2343 Element 626924 or 234324 ×1

Plates Special 9 pieces

  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×1
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×2
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Light Gray Part 4085c Element 408502 ×2
  • Plate Special 1 x 2 Side Handle [Free Ends] Light Gray Part 2540 Element 4140584 or 254052 ×1
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Red Part 4081b Element 6281994 or 4632572 ×1

Minifig Shields, Weapons, & Tools 8 pieces

  • Weapon Pike / Spear Round End Black Part 4497 Element 449726 ×1
  • Weapon Gun / Flintlock / Musket (Pirate) Brown Part 2561 Element 4188174 or 4160764 ×1
  • Weapon Gun / Pistol Flintlock Brown Part 2562 Element 256225 ×2
  • Weapon Lance Brown Part 3849 Element 4160964 or 384925 ×1
  • Weapon Sword / Cutlass Dark Gray Part 2530 Element 4161408 or 4106923 ×2
  • Shield Ovoid with Indigo Islanders Print White Part 2586pr0003 Element 4160944 or 82017 ×1

Plates Round Curved and Dishes 8 pieces

  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Blue Part 4032a Element 403223 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Brown Part 4032a Element 403225 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Green Part 4032a Element 403228 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×2
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 1 spare in the box ×2

Bars, Ladders and Fences 7 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×3
  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×1
  • Bar, 4 Top Bars, Palm Tree Top Blue Part 2566 Element 256623 ×1
  • Bar 7 x 3 with Double Clips (Ladder) [Straight Clips] Brown Part 6020 Element 602025 ×1
  • Bar, 4 Top Bars, Palm Tree Top Green Part 2566 Element 4258355 or 4160961 ×1

Bricks Sloped 7 pieces

  • Brick Sloped Inverted 34° 3 x 1 without Internal Stopper Black Part 4287a ×1
  • 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 ×1
  • Brick Sloped Inverted 45° 4 x 2 Double with 2 x 2 Recessed Light Gray Part 4871 Element 487102 ×1

Tiles 7 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 1 with Groove Light Gray Part 3070b Element 307052 or 307002 ×2
  • Tile 1 x 8 with Groove Yellow Part 4162 Element 6388482 or 4189400 ×2
  • Tile 2 x 2 with Groove Yellow Part 3068b Element 6388487 or 306824 ×1

Panels 5 pieces

  • Castle Turret Top 7 x 7 Corner Black Part 6072 Element 607276 or 607226 ×1
  • Panel 1 x 2 x 1 [Square Corners] Light Gray Part 4865a Element 486502 ×1
  • Panel 1 x 2 x 2 [Solid Studs] Light Gray Part 4864a Element 486402 ×1
  • Panel 3 x 3 x 6 Corner Wall Light Gray Part 2345 Element 4189067 or 4160946 ×1
  • Panel 3 x 3 x 6 Corner Wall with Green Vines Print Light Gray Part 2345pr0006 Element 4160948 or 81630 ×1

Animal / Creature Body Parts 4 pieces

  • Animal Body Part, Alligator / Crocodile / Dragon / Dinosaur Tail Green Part 6028 Element 602828 ×1
  • Animal Body Part, Alligator / Crocodile / Dragon Upper Jaw / Dinosaur Tongue Green Part 6027 Element 602728 ×1
  • Animal Body Part, Alligator / Crocodile Body Green Part 6026 Element 602628 ×1
  • Animal Body Part, Horn, Cattle White Part 87695 ×1

Hinges, Arms and Turntables 4 pieces

  • Hinge Bar 8L with 3 Fingers and Open End Stud Black Part 4319 Element 4160739 or 431926 ×1
  • Hinge Tile 1 x 2 1/2 with 2 Fingers on Top Black Part 4531 Element 453126 ×1
  • 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

Technic Pins 4 pieces

  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×4

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 2 pieces

  • Flag 2 x 2 Square with Skull and Crossbones Print White Part 2335pr0006 Element 4192569 or 4160881 ×1
  • Flag 6 x 4 with Clips with Skull and Crossbones (Jolly Roger) Print White Part 2525pr0005 Element 4192570 ×1

Projectiles / Launchers 2 pieces

  • Launcher, Weapon Cannon Shooting Dark Gray Part 84943 Element 4161402 or 74296 ×1
  • Launcher Base, Weapon Cannon Base 2 x 4 Red Part 2527 Element 6224366 or 6093578 ×1

Stickers 2 pieces

  • Sticker Sheet for Sets 1788-1, 6256-1, 6264-1, 6278-1, 6292-1 [No Color/Any Color] Part 822070 Element 822070 ×2

Technic Bricks 2 pieces

  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2

Baseplates 1 piece

  • Baseplate 16 x 24 Blue Part 3334 Element 333423 ×1

Bricks Curved 1 piece

  • Brick Arch 1 x 6 Black Part 3455 Element 345526 ×1

Energy Effects 1 piece

  • Wave / Flame Rounded with Base Pegs Trans-Neon Orange Part 6126a ×1

Rock 1 piece

  • Rock Panel Rectangular 4 x 10 x 6 Dark Gray Part 6082 Element 608227 ×1

Tiles Round and Curved 1 piece

  • Tile Round 2 x 2 with Zebra Stripes Print White Part 4150pr0018 Element 4160949 or 81631 ×1

Tiles Special 1 piece

  • Tile Special 1 x 1 with Clip and Straight Tips Red Part 2555 Element 255521 ×1

Transportation - Sea and Air 1 piece

  • Boat / Canoe Red Part 6021 Element 6054975 or 4160971 ×1

Minifigures 4 figures

  • Pirate - Shirt with Knife, Peg Leg, Blue Epaulettes Minifigure, checked as a whole figure ×1
  • Islander - Male Minifigure, checked as a whole figure ×1
  • Islander - King Kahuka, Mask Minifigure, checked as a whole figure ×1
  • Pirate - Red/Black Stripes, Blue Legs, Red Bandana 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.

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