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LEGO Missing Piece Checker

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Ariel's Underwater Concert

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10765 Ariel's Underwater Concert

87 pieces in 51 part and color combinations, plus 1 minifigure.

The official piece count includes the 5 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 Curved 12 pieces

  • Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version] Dark Purple Part 15254 Element 6290494 or 6107874 ×2
  • Brick Curved 4 x 1 Double, No Studs Medium Azure Part 93273 Element 6097093 ×8
  • Brick Curved 4 x 1 Double, No Studs Medium Lavender Part 93273 Element 6070777 ×2

Bricks Round and Cones 12 pieces

  • Brick Round Corner 3 x 3 x 2 Dome Top Magenta Part 88293 Element 6022046 ×2
  • Brick Round 2 x 2 Dome Bottom [Open Stud] Medium Azure Part 15395 Element 6132411 ×2
  • Brick Round 1 x 1 Open Stud Pearl Gold Part 3062b Element 6060800 ×2
  • Brick Round 2 x 2 Dome Top, Hollow Stud Pearl Gold Part 30367c Element 4569316 ×2
  • Cone 1 x 1 [Top Groove] Trans-Dark Pink Part 59900 Element 6514026 or 6337637 ×2
  • Brick Round 2 x 2 with Axle Hole Trans-Light Blue Part 3941 Element 6514282 or 6273153 ×2

Bricks 10 pieces

  • Brick 1 x 2 x 5 with Column, See Weed, Bubbles Print Bright Light Yellow Part 2454bpr0004 Element 6234332 ×2
  • Brick 1 x 2 x 5 with Hollow Studs Bright Light Yellow Part 2454b Element 6036236 ×2
  • Brick 2 x 2 Dark Purple Part 3003 Element 4653960 or 4589613 ×2
  • Brick 1 x 2 Magenta Part 3004 Element 4519195 or 4206360 ×2
  • Brick 1 x 2 without Bottom Tube Trans-Light Blue Part 3065 Element 6514268 or 6244910 ×2

Plates 10 pieces

  • Plate 2 x 4 Dark Pink Part 3020 Element 6056263 or 6015824 ×1
  • Plate 2 x 2 Dark Purple Part 3022 Element 6047422 or 4224861 ×2
  • Plate 2 x 12 Magenta Part 2445 Element 6093863 ×1
  • Plate 2 x 12 Tan Part 2445 Element 6093864 or 4526771 ×1
  • Plate 4 x 4 Tan Part 3031 Element 4243824 or 4113919 ×1
  • Plate 1 x 2 Trans-Light Blue Part 3023 Element 6514007 or 6240222 ×4

Plants & Trees 9 pieces

  • Plant, Grass Stem with Bar Hole [3.2mm] Bright Green Part 15279 Element 6566117 or 6413056 ×2
  • Plant, Plate 1 x 1 Round with 3 Leaves Bright Green Part 32607 Element 6182261 ×1
  • Plant, Sea Grass Bright Green Part 30093 Element 6269992 or 6210746 ×2
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Dark Pink Part 24866 Element 6209679 2 spares in the box ×3
  • Plant, Leaves 4 x 3 Dark Pink Part 2423 Element 6268816 or 6093480 ×1

Plates Special 9 pieces

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Purple Part 87580 Element 6446090 or 6126086 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Medium Azure Part 87580 Element 6126090 or 6003008 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Pearl Gold Part 15573 Element 6092594 ×5
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×1

Animals / Creatures 3 pieces

  • Animal, Dolphin, Jumping with Blue Eyes and Eyelashes Print Bright Light Blue Part 13392pr0001 Element 6379351 or 6034425 ×1
  • Animal, Crab with Sebastian Print Red Part 67051pr0001 Element 6342511 or 6214632 ×1
  • Animal, Fish with Small Eyes, Medium Blue Dorsal and Tail Fin and Blue Stripes on Top Print (Flounder / Fabius) Yellow Part 15679pr0001 Element 6056851 ×1

Minifig Accessories 3 pieces

  • Musical Instrument Microphone with Metallic Gold Top Half Screen Print Black Part 90370pr0005 Element 6104328 1 spare in the box ×1
  • Equipment Binoculars Pearl Gold Part 30162 Element 6034543 ×1
  • Equipment Goblet / Glass Pearl Gold Part 2343 Element 4505990 ×1

Plates Round Curved and Dishes 3 pieces

  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Blue Part 2654 Element 4278276 or 4208686 ×1
  • Plate Round Corner 3 x 3 Tan Part 30357 Element 4543858 or 4124071 ×1
  • Plate Round Half 4 x 8 Tan Part 22888 Element 6123812 ×1

Bricks Sloped 2 pieces

  • Brick Sloped 45° 2 x 2 Magenta Part 3039 Element 4550362 ×2

Containers 2 pieces

  • Treasure Chest Bottom with Rear Slots, No Groove Reddish Brown Part 4738c Element 4533101 ×1
  • Treasure Chest Lid [Thick Hinge] Reddish Brown Part 4739a Element 6254220 or 6167676 ×1

Tiles Round and Curved 2 pieces

  • Tile Round 2 x 2 with Clam Shell Print Medium Lavender Part 14769pr1111 Element 6235212 ×2

Wheels and Tyres 2 pieces

  • Wheel Wagon Large (33mm D.), Hole Notched for Wheels Holder Pin Pearl Gold Part 4489b Element 6093573 ×2

Animal / Creature Body Parts 1 piece

  • Animal Body Part, Clam / Scallop Half Shell with 4 Studs White Part 18970 Element 6550156 or 6097097 ×1

Minifig Headwear Accessories 1 piece

  • Headwear Accessory Crown Long with Bar Pearl Gold Part 25516 Element 6491216 or 6330618 1 spare in the box ×1

Minifig Lower Body 1 piece

  • Leg Tall, Skeleton Magenta Part 23769 Element 6325457 or 6236428 ×1

Panels 1 piece

  • Panel 1 x 2 x 1 with Rounded Corners and 2 Sides Trans-Light Blue Part 23969 Element 6507955 or 6248908 ×1

Rock 1 piece

  • Rock 1 x 1 Jewel / Gem 24 Facet Trans-Light Blue Part 30153 Element 6513972 or 6247792 ×1

Tiles 1 piece

  • Tile 2 x 2 with Groove Medium Lavender Part 3068b Element 6173813 ×1

Tiles Special 1 piece

  • Tile, Star with Stud Holder, Pin Hole Bright Light Orange Part 11609 Element 6432033 or 6167776 1 spare in the box ×1

Transportation - Land 1 piece

  • Vehicle Base, Carriage 4 x 6 x 1 2/3 with Wheel Clip Pins Magenta Part 24055 Element 6234377 or 6134237 ×1

Minifigures 1 figure

  • Ariel - Mermaid Form, Pink Top, Gold Print on Tail 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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